Pub Date : 2023-02-01DOI: 10.14710/jmr.v12i1.34169
Kirana Fatika Brilianti, Ali Ridlo, Sri Sedjati
Plastik merupakan bahan yang banyak digunakan dalam kehidupan sehari-hari, tetapi mencemari lingkungan karena plastik tidak dapat diuraikan oleh lingkungan. Penelitian mengenai bioplastik diperlukan untuk bahan alternatif plastik yang mudah terurai. Karagenan dan amilum merupakan polisakarida yang berpotensi sebagai bahan pembuatan bioplastik. Tujuan dari penelitian ini untuk menentukan perbedaan karakteristik (ketebalan, kuat tarik dan elongasi) bioplastik berbahan dasar karagenan dan gliserol terhadap pertambahan konsentrasi amilum. Metode penelitian yang digunakan yaitu Eksperimental Laboratorium. Karagenan diperoleh dari ektraksi K. alvarezii yang berasal dari perairan Jepara, Jawa Tengah. Bioplastik dibuat dengan gelatinasi amilum (1; 2; 3; dan 4 g) dalam 50 ml akuades pada suhu 90ºC selama 15 menit dalam erlenmeyer menggunakan Hot Plate Stirrer. Gliserol 20% ditambahkan dan dihomogenkan selama 5 menit. Suhu diturunkan hingga 70ºC, selanjutnya karagenan 1 g dan akuades ditambahkan hingga volume 150 ml dihomogenkan selama 45 menit. Bioplastik dicetak dan dikeringkan di oven selama 18 jam pada suhu 50ºC. Hasil penelitian menunjukkan bahwa karakteristik bioplastik κ-karagenan dengan penambahan amilum yaitu memiliki kuat tarik 6,42-11,47 MPa, nilai elongasi 7,03-21,88% dan ketebalan 0,13-0,25 mm. Elongasi konsentrasi amilum 1 g telah memenuhi standar SNI. Parameter yang sesuai dengan standar Japanese Industrial Standard yaitu parameter kuat tarik dan ketebalan. Plastic is a material that is widely used in everyday life, but it pollutes the environment because plastic cannot be decomposed by the environment. Research on bioplastics needs to get alternative materials for plastics that are easily biodegradable. Carrageenan and starch are polysaccharides that have the potential as materials for making bioplastics. This study aimed to determine differences in characteristics (thickness, tensile strength, and elongation) of bioplastics based on carrageenan and glycerol because of increased starch concentration. The research method used is Experimental Laboratory. Carrageenan from the extraction of K. alvarezii from the waters of Jepara, Central Java. Bioplastics were prepared by gelatinization starch (1; 2; 3; and 4 g) in 50 ml of distilled water at 90ºC for 15 minutes in an Erlenmeyer using a Hot Plate Stirrer. Glycerol 20% was added and homogenized for 5 minutes. Lower the temperature to 70ºC, then add 1 g of carrageenan and distilled water until the volume is 150 ml, after that homogenize it for 45 minutes. The bioplastics were molded and dried in the oven for 18 hours at 50ºC. The results showed that the characteristics of κ-carrageenan bioplastic with the addition of starch had a tensile strength of 6.42-11.47 MPa, an elongation value of 7.03-21.88% and a thickness of 0.13-0.25 mm. The elongation of starch concentration of 1 g is in accordance with the SNI standard. Parameters that comply with the Japanese Industrial Standard are the tensile st
塑料是一种广泛用于日常生活的材料，但它确实污染了环境，因为它不能被环境定义。生物塑料研究是可生物降解塑料替代的必要条件。Karagenan和amilum是一种潜在的生物塑料制造多糖。本研究的目的是确定碳阿苯酚基生物塑料和甘油对淀粉样浓度增加的影响。使用的研究方法是实验实验室。卡尔阿格诺从爪哇中部的杰帕拉水域获得。生物塑料是用酰胺凝胶制成的(1;2;3;和4 g)温度在50毫升akuades 90ºC 15分钟热盘子erlenmeyer使用Stirrer中。甘油20%加入并均匀化5分钟。温度降低到70ºC,接下来karagenan 1g和akuades增加到150毫升容量dihomogenkan 45分钟。印刷和研发的干燥温度的烤箱里18小时50ºC。研究结果表明,κ研发的生物特征-karagenan增补amilum即有强大吸引力6,42-11,47 MPa,价值7,03-21,88%拉长0,13-0,25毫米厚度。胺1 g浓度的展开符合SNI的标准。符合日本工业标准的参数是强拉和厚度。塑料是一种日常生活中经常使用的材料，但它污染了环境，因为塑料不能被环境破坏。生物塑料研究需要为容易生物降解的塑料获得替代材料。Carrageenan和starch都是polysaccharides，它们具有制造生物塑料的潜在材料。这项研究将确定在characteristics (thickness、tensile strength和reongation)基于carrageenan和glycerol的生物塑性，因为它们增加了注意力集中。研究方法研究是一个实验实验室。来自爪哇中部杰帕拉水域的卡拉吉南。生物塑料是由凝胶星群准备的(1;2;3;和第四师g)在50毫升的distilled water at 90ºC for 15分钟热盘子用a in an Erlenmeyer Stirrer。20%的甘油被添加并均匀5分钟。70ºC的温度,然后下城add 1g carrageenan distilled water著作百科全书》,直到《体积是150毫升,after that homogenize it for 45分钟)。境bioplastics是molded and dried烤箱for at 18小时50ºC。《characteristics of The results那里那个κ-carrageenan bioplastic淀粉的加法,有一只肌腱力量》用6 42-11。47 MPa, an elongation价值》7 . 03-21 13-0 88% and a thickness of 0。25毫米。1克集中注意力的重复与SNI标准一致。与日本工业标准相比，这些参数是肌腱强度和腿筋问题。
{"title":"Sifat Mekanik dan Ketebalan Bioplastik dari Kappaphycus alvarezii Menggunakan Variasi Konsentrasi Amilum dengan Pemlastis Gliserol","authors":"Kirana Fatika Brilianti, Ali Ridlo, Sri Sedjati","doi":"10.14710/jmr.v12i1.34169","DOIUrl":"https://doi.org/10.14710/jmr.v12i1.34169","url":null,"abstract":"Plastik merupakan bahan yang banyak digunakan dalam kehidupan sehari-hari, tetapi mencemari lingkungan karena plastik tidak dapat diuraikan oleh lingkungan. Penelitian mengenai bioplastik diperlukan untuk bahan alternatif plastik yang mudah terurai. Karagenan dan amilum merupakan polisakarida yang berpotensi sebagai bahan pembuatan bioplastik. Tujuan dari penelitian ini untuk menentukan perbedaan karakteristik (ketebalan, kuat tarik dan elongasi) bioplastik berbahan dasar karagenan dan gliserol terhadap pertambahan konsentrasi amilum. Metode penelitian yang digunakan yaitu Eksperimental Laboratorium. Karagenan diperoleh dari ektraksi K. alvarezii yang berasal dari perairan Jepara, Jawa Tengah. Bioplastik dibuat dengan gelatinasi amilum (1; 2; 3; dan 4 g) dalam 50 ml akuades pada suhu 90ºC selama 15 menit dalam erlenmeyer menggunakan Hot Plate Stirrer. Gliserol 20% ditambahkan dan dihomogenkan selama 5 menit. Suhu diturunkan hingga 70ºC, selanjutnya karagenan 1 g dan akuades ditambahkan hingga volume 150 ml dihomogenkan selama 45 menit. Bioplastik dicetak dan dikeringkan di oven selama 18 jam pada suhu 50ºC. Hasil penelitian menunjukkan bahwa karakteristik bioplastik κ-karagenan dengan penambahan amilum yaitu memiliki kuat tarik 6,42-11,47 MPa, nilai elongasi 7,03-21,88% dan ketebalan 0,13-0,25 mm. Elongasi konsentrasi amilum 1 g telah memenuhi standar SNI. Parameter yang sesuai dengan standar Japanese Industrial Standard yaitu parameter kuat tarik dan ketebalan. Plastic is a material that is widely used in everyday life, but it pollutes the environment because plastic cannot be decomposed by the environment. Research on bioplastics needs to get alternative materials for plastics that are easily biodegradable. Carrageenan and starch are polysaccharides that have the potential as materials for making bioplastics. This study aimed to determine differences in characteristics (thickness, tensile strength, and elongation) of bioplastics based on carrageenan and glycerol because of increased starch concentration. The research method used is Experimental Laboratory. Carrageenan from the extraction of K. alvarezii from the waters of Jepara, Central Java. Bioplastics were prepared by gelatinization starch (1; 2; 3; and 4 g) in 50 ml of distilled water at 90ºC for 15 minutes in an Erlenmeyer using a Hot Plate Stirrer. Glycerol 20% was added and homogenized for 5 minutes. Lower the temperature to 70ºC, then add 1 g of carrageenan and distilled water until the volume is 150 ml, after that homogenize it for 45 minutes. The bioplastics were molded and dried in the oven for 18 hours at 50ºC. The results showed that the characteristics of κ-carrageenan bioplastic with the addition of starch had a tensile strength of 6.42-11.47 MPa, an elongation value of 7.03-21.88% and a thickness of 0.13-0.25 mm. The elongation of starch concentration of 1 g is in accordance with the SNI standard. Parameters that comply with the Japanese Industrial Standard are the tensile st","PeriodicalId":50153,"journal":{"name":"Journal of Marine Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42699114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Karakteristik sedimen mangrove terdiri dari fraksi pasir, lumpur dan liat. Kelimpahan gastropoda dipengaruhi oleh substrat sebagai habitat dari gastropoda, serta kandungan bahan organik yang berbeda pada tiap fraksi. Oleh karena itu, perlu dilakukan penelitian mengenai analisa tekstur sedimen terhadap kelimpahan gastropoda di kawasan mangrove Desa Pasar Banggi, Rembang, mengingat gastropoda berperan penting dalam menjaga keseimbangan ekologi ekosistem mangrove. Penelitian ini bertujuan untuk menganalisis hubungan tekstur sedimen dengan kelimpahan gastropoda di ekosistem mangrove Desa Pasar Banggi, Rembang yang dilakukan pada bulan Desember 2021. Metode penentuan lokasi sampling menggunakan metode purposive sampling pada 3 lokasi sesuai dengan kerapatan mangrove yang berbeda. Pengukuran ekosistem mangrove menggunakan transek berukuran 15x15 m, dengan 3 subplot gastropoda dalam transek 1x1 m. Hasil penelitian menunjukkan fraksi pasir , lumpur silt dan lempung clay. Genus gastropoda yang ditemukan yaitu Littoria, Nodilittorina, Cerithidea, Trochus, Cassidula dan Telescopium. Nilai rata-rata kelimpahan berkisar antara 106-346 ind/m2. Nilai indeks keanekaragaman dan indeks keseragaman termasuk kedalam kategori rendah. Nilai indeks dominansi menunjukkan adanya pola dominansi dengan pola sebaran mengelompok. Hubungan tekstur sedimen ketiga fraksi dengan kelimpahan gastropoda diperoleh nilai r=0,947–0,991 yang berkorelasi kuat. Semakin tinggi presentasi fraksi diikuti dengan kenaikan kelimpahan gastropoda. The characteristics of mangrove sediments consists of sand, mud and clay fractions. The abundance of gastropods is influenced by the substrate as the habitat of the gastropods, as well as the different organic matter content in each fraction. Therefore, it is necessary to conduct research on sediment texture analysis of gastropods in the mangrove area of Pasar Banggi Village, Rembang, considering that gastropods are important in maintaining the balance of the mangrove ecosystem. This study aims to determine the relationship between sediment texture and gastropods in the mangrove ecosystem of Pasar Banggi Village, Rembang, which was conducted in December 2021. The sampling location method used the purposive sampling method at 3 locations according to the different mangrove densities. Measurement of the mangrove ecosystem using a transect measuring 15x15 m, with 3 gastropod subplots in a 1x1 m transect. The results showed the fraction of sand, silt and clay. The gastropod genera found were Littoria, Nodilittorina, Cerithidea, Trochus, Cassidula and Telescopium. The average value ranges from 106-346 ind/m2. The diversity index and uniformity index values are included in the low category. The dominance index value indicates a dominant pattern with a clustered distribution pattern. Sediment texture of the three fraction values with gastropod relationship obtained r = 0.947 - 0.991 which is strongly correlated.
{"title":"Analisis Tekstur Sedimen terhadap Kelimpahan Gastropoda di Ekosistem Mangrove Desa Pasar Banggi, Rembang","authors":"Vira Meillyana Mustofa, Nirwani Soenardjo, Ibnu Pratikto","doi":"10.14710/jmr.v12i1.35003","DOIUrl":"https://doi.org/10.14710/jmr.v12i1.35003","url":null,"abstract":"Karakteristik sedimen mangrove terdiri dari fraksi pasir, lumpur dan liat. Kelimpahan gastropoda dipengaruhi oleh substrat sebagai habitat dari gastropoda, serta kandungan bahan organik yang berbeda pada tiap fraksi. Oleh karena itu, perlu dilakukan penelitian mengenai analisa tekstur sedimen terhadap kelimpahan gastropoda di kawasan mangrove Desa Pasar Banggi, Rembang, mengingat gastropoda berperan penting dalam menjaga keseimbangan ekologi ekosistem mangrove. Penelitian ini bertujuan untuk menganalisis hubungan tekstur sedimen dengan kelimpahan gastropoda di ekosistem mangrove Desa Pasar Banggi, Rembang yang dilakukan pada bulan Desember 2021. Metode penentuan lokasi sampling menggunakan metode purposive sampling pada 3 lokasi sesuai dengan kerapatan mangrove yang berbeda. Pengukuran ekosistem mangrove menggunakan transek berukuran 15x15 m, dengan 3 subplot gastropoda dalam transek 1x1 m. Hasil penelitian menunjukkan fraksi pasir , lumpur silt dan lempung clay. Genus gastropoda yang ditemukan yaitu Littoria, Nodilittorina, Cerithidea, Trochus, Cassidula dan Telescopium. Nilai rata-rata kelimpahan berkisar antara 106-346 ind/m2. Nilai indeks keanekaragaman dan indeks keseragaman termasuk kedalam kategori rendah. Nilai indeks dominansi menunjukkan adanya pola dominansi dengan pola sebaran mengelompok. Hubungan tekstur sedimen ketiga fraksi dengan kelimpahan gastropoda diperoleh nilai r=0,947–0,991 yang berkorelasi kuat. Semakin tinggi presentasi fraksi diikuti dengan kenaikan kelimpahan gastropoda. The characteristics of mangrove sediments consists of sand, mud and clay fractions. The abundance of gastropods is influenced by the substrate as the habitat of the gastropods, as well as the different organic matter content in each fraction. Therefore, it is necessary to conduct research on sediment texture analysis of gastropods in the mangrove area of Pasar Banggi Village, Rembang, considering that gastropods are important in maintaining the balance of the mangrove ecosystem. This study aims to determine the relationship between sediment texture and gastropods in the mangrove ecosystem of Pasar Banggi Village, Rembang, which was conducted in December 2021. The sampling location method used the purposive sampling method at 3 locations according to the different mangrove densities. Measurement of the mangrove ecosystem using a transect measuring 15x15 m, with 3 gastropod subplots in a 1x1 m transect. The results showed the fraction of sand, silt and clay. The gastropod genera found were Littoria, Nodilittorina, Cerithidea, Trochus, Cassidula and Telescopium. The average value ranges from 106-346 ind/m2. The diversity index and uniformity index values are included in the low category. The dominance index value indicates a dominant pattern with a clustered distribution pattern. Sediment texture of the three fraction values with gastropod relationship obtained r = 0.947 - 0.991 which is strongly correlated. ","PeriodicalId":50153,"journal":{"name":"Journal of Marine Research","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41521574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-31DOI: 10.14710/jmr.v12i1.35054
Ika Asri Desanti, Rini Pramesti, S. Sunaryo
Budidaya perairan yang saat ini dikembangkan dapat menghasilkan limbah dari sisa pakan yang digunakan. Masuknya limbah dari hasil budidaya dapat mempengaruhi kualitas perairan. Gracilaria sp. memiliki kemampuan untuk memanfaatkan sisa dari hasil pemeliharaan untuk pertumbuhannya. Penelitian ini bertujuan untuk mengetahui pengaruh kepadatan yang berbeda terhadap pertumbuhan Gracilaria sp. yang dipelihara pada media pemeliharaan. Penelitian ini dilaksanakan pada bulan Mei-Juni 2021 di Laboratorium Basah Gedung E Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang. Penelitian dilakukan pada skala laboratorium dengan menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari empat perlakuan dengan tiga ulangan. Perlakuan ini menggunakan berat Gracilaria sp. yang berbeda yaitu, perlakuan A (tanpa rumput laut/ kontrol), B (100 g), C (200 g), dan D (300 g). Parameter penelitian yang diamati adalah pertumbuhan rumput laut pada media pemeliharaan. Kualitas air pada media penelitian juga diamati dan diukur untuk pengetahui pengaruhkan terhadap pertumbuhan rumput laut.. Pertumbuhan Gracilaria menurun 0,6% untuk perlakuan B (100 g), 0,4% untuk perlakuan C (200 g) dan 1,7% untuk perlakuan D (300 g). Konsentrasi Nitrat tertinggi terjadi pada perlakuan D (300 g) dengan konsentrasi 9,0-9,2 mg/L dan konsentrasi terendah pada perlakuan A (0 g) 6,5-6,8 mg/L. Konsentrasi fosfat tertinggi pada perlakuan kontrol 2,8-3,0 mg/L dan konsentrasi Fosfat terendah pada perlakuan C (200 g) yang berkisar 1,90-2,00 mg/L. Hasil pengukuran kualitas air didapatkan suhu berkisar 27-28oC, salinitas 25-31 ppt, pH 6,9-7,1. Konsentrasi Nitrat dan Fosfat pada media pemeliharaan semakin meningkat dengan bertambahnya kepadatan rumput laut. Aquaculture that is currently being developed can produce waste from the rest of the feed used. The entry of waste from aquaculture can affect water quality. Gracilaria sp. has the ability to utilize the rest of the results of maintenance for its growth. This study aims to determine the effect of different densities on the growth of Gracilaria sp. maintained on the maintenance medium. This research was carried out in May-June 2021 at the Wet Laboratory of Building E, Faculty of Fisheries and Marine Sciences, Diponegoro University, Semarang. The study was conducted on a laboratory scale using a completely randomized design (CRD) consisting of four treatments with three replications. This treatment uses the weight of Gracilaria sp. The different treatments were treatment A (without seaweed/control), B (100 g), C (200 g), and D (300 g). The research parameter observed was the growth of seaweed on the rearing media. Water quality in the research media was also observed and measured to determine its effect on seaweed growth. Gracilaria growth decreased 0.6% for treatment B (100 g), 0.4% for treatment C (200 g) and 1.7% for treatment D (300 g). The highest concentration of nitrate occurred in treatment D (300 g) with a concentration of 9.0-9
{"title":"Pertumbuhan Gracilaria sp. dengan Kepadatan Berbeda Pada Air Limbah Pemeliharaan Udang Intensif","authors":"Ika Asri Desanti, Rini Pramesti, S. Sunaryo","doi":"10.14710/jmr.v12i1.35054","DOIUrl":"https://doi.org/10.14710/jmr.v12i1.35054","url":null,"abstract":"Budidaya perairan yang saat ini dikembangkan dapat menghasilkan limbah dari sisa pakan yang digunakan. Masuknya limbah dari hasil budidaya dapat mempengaruhi kualitas perairan. Gracilaria sp. memiliki kemampuan untuk memanfaatkan sisa dari hasil pemeliharaan untuk pertumbuhannya. Penelitian ini bertujuan untuk mengetahui pengaruh kepadatan yang berbeda terhadap pertumbuhan Gracilaria sp. yang dipelihara pada media pemeliharaan. Penelitian ini dilaksanakan pada bulan Mei-Juni 2021 di Laboratorium Basah Gedung E Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang. Penelitian dilakukan pada skala laboratorium dengan menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari empat perlakuan dengan tiga ulangan. Perlakuan ini menggunakan berat Gracilaria sp. yang berbeda yaitu, perlakuan A (tanpa rumput laut/ kontrol), B (100 g), C (200 g), dan D (300 g). Parameter penelitian yang diamati adalah pertumbuhan rumput laut pada media pemeliharaan. Kualitas air pada media penelitian juga diamati dan diukur untuk pengetahui pengaruhkan terhadap pertumbuhan rumput laut.. Pertumbuhan Gracilaria menurun 0,6% untuk perlakuan B (100 g), 0,4% untuk perlakuan C (200 g) dan 1,7% untuk perlakuan D (300 g). Konsentrasi Nitrat tertinggi terjadi pada perlakuan D (300 g) dengan konsentrasi 9,0-9,2 mg/L dan konsentrasi terendah pada perlakuan A (0 g) 6,5-6,8 mg/L. Konsentrasi fosfat tertinggi pada perlakuan kontrol 2,8-3,0 mg/L dan konsentrasi Fosfat terendah pada perlakuan C (200 g) yang berkisar 1,90-2,00 mg/L. Hasil pengukuran kualitas air didapatkan suhu berkisar 27-28oC, salinitas 25-31 ppt, pH 6,9-7,1. Konsentrasi Nitrat dan Fosfat pada media pemeliharaan semakin meningkat dengan bertambahnya kepadatan rumput laut. Aquaculture that is currently being developed can produce waste from the rest of the feed used. The entry of waste from aquaculture can affect water quality. Gracilaria sp. has the ability to utilize the rest of the results of maintenance for its growth. This study aims to determine the effect of different densities on the growth of Gracilaria sp. maintained on the maintenance medium. This research was carried out in May-June 2021 at the Wet Laboratory of Building E, Faculty of Fisheries and Marine Sciences, Diponegoro University, Semarang. The study was conducted on a laboratory scale using a completely randomized design (CRD) consisting of four treatments with three replications. This treatment uses the weight of Gracilaria sp. The different treatments were treatment A (without seaweed/control), B (100 g), C (200 g), and D (300 g). The research parameter observed was the growth of seaweed on the rearing media. Water quality in the research media was also observed and measured to determine its effect on seaweed growth. Gracilaria growth decreased 0.6% for treatment B (100 g), 0.4% for treatment C (200 g) and 1.7% for treatment D (300 g). The highest concentration of nitrate occurred in treatment D (300 g) with a concentration of 9.0-9","PeriodicalId":50153,"journal":{"name":"Journal of Marine Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48940441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-31DOI: 10.14710/jmr.v12i1.33980
Rico Adi Setyanto, Widianingsih Widianingsih, W. A. Setyati
Blue carbon merupakan salah satu upaya penurunan efek pemanasan global melalui peran ekosistem penyerap karbon di pesisir. Kehadiran ekosistem lamun menjadi ekosistem penting pesisis dan penyerap karbon masif. Penelitian ini berutujuan untuk mengetahui kondisi lamun dan kandungan karbon pada vegetasi lamun di Pulau Sintok dan Pulau Menjangan Besar, Karimunjawa. Pengamatan ekosistem lamun menggunakan metode LIPI dengan transek kuadran 50x50cm. Sampling jaringan lamun dilakukan acak pada tiap lokasi dengan alat seagrasscore. Perhitungan kandngan karbon pada tiap jaringan lamun menggunakan metode pengabuan. Jenis lamun yang ditemukan pada Pulau Sintok terdapat 4 spesies sedangkan pada Pulau Menjangan Besar sebanyak 6 spesies. Pulau Sintok memiliki persen cover kategori sedang dan Pulau Menjangan Besar memiliki persen cover kategori padat. Nilai simpanan karbon pada Pulau Sintok berkisar antara 2,59–61,07 gC/m2 sedangkan pada Pulau Menjangan Besar berkisar antara 5,97–404,57 gC/m2. Nilai simpanan karbon terbesar pada Pulau Sintok dipegan spesies Thalassia hemprichii dan pada Pulau Menjangan Besar dipegang oleh spesies Enhalus acoroides. Kondisi ekosistem yang baik meningkatkan kemampuan ekosistem lamun dalam menyerap karbon dan dapat menjadi mitigasi pemanasan global. Blue Carbon is one of the concepts to reduce the effects of global warming through the role of carbon-absorbing ecosystems on the coast. The presence of seagrass ecosystems is an important coastal ecosystem and a massive carbon sink. This study aims to determine the condition of seagrass and the carbon content of seagrass vegetation on Sintok Island and Menjangan Besar Island, Karimunjawa. Observation of seagrass ecosystem using LIPI method with 50x50cm quadrant transect. Seagrass tissue sampling was carried out randomly at each location using a seagrasscore tool. Calculation of carbon content in each seagrass tissue using Loss on Ignition (LOI method). There are 4 species of seagrass found on Sintok Island, while on Menjangan Besar Island there are 6 species. Sintok Island has a medium percent cover category and Menjangan Besar Island has a high percent cover category. The value of carbon storage on Sintok Island ranged from 2.59 – 61.07 gC/m2 while on Menjangan Besar Island it ranged from 5.97 – 404.57 gC/m2. In the Sintok Island, the largest value of carbon storage was Thalassia hemprichii and in the Menjangan Besar Island was held by Enhalus acoroides species. Good ecosystem conditions increase the ability of seagrass ecosystems to absorb carbon and mitigate global warming.
{"title":"Simpanan Karbon Lamun di Pulau Sintok dan Pulau Menjangan Besar, Karimunjawa","authors":"Rico Adi Setyanto, Widianingsih Widianingsih, W. A. Setyati","doi":"10.14710/jmr.v12i1.33980","DOIUrl":"https://doi.org/10.14710/jmr.v12i1.33980","url":null,"abstract":"Blue carbon merupakan salah satu upaya penurunan efek pemanasan global melalui peran ekosistem penyerap karbon di pesisir. Kehadiran ekosistem lamun menjadi ekosistem penting pesisis dan penyerap karbon masif. Penelitian ini berutujuan untuk mengetahui kondisi lamun dan kandungan karbon pada vegetasi lamun di Pulau Sintok dan Pulau Menjangan Besar, Karimunjawa. Pengamatan ekosistem lamun menggunakan metode LIPI dengan transek kuadran 50x50cm. Sampling jaringan lamun dilakukan acak pada tiap lokasi dengan alat seagrasscore. Perhitungan kandngan karbon pada tiap jaringan lamun menggunakan metode pengabuan. Jenis lamun yang ditemukan pada Pulau Sintok terdapat 4 spesies sedangkan pada Pulau Menjangan Besar sebanyak 6 spesies. Pulau Sintok memiliki persen cover kategori sedang dan Pulau Menjangan Besar memiliki persen cover kategori padat. Nilai simpanan karbon pada Pulau Sintok berkisar antara 2,59–61,07 gC/m2 sedangkan pada Pulau Menjangan Besar berkisar antara 5,97–404,57 gC/m2. Nilai simpanan karbon terbesar pada Pulau Sintok dipegan spesies Thalassia hemprichii dan pada Pulau Menjangan Besar dipegang oleh spesies Enhalus acoroides. Kondisi ekosistem yang baik meningkatkan kemampuan ekosistem lamun dalam menyerap karbon dan dapat menjadi mitigasi pemanasan global. Blue Carbon is one of the concepts to reduce the effects of global warming through the role of carbon-absorbing ecosystems on the coast. The presence of seagrass ecosystems is an important coastal ecosystem and a massive carbon sink. This study aims to determine the condition of seagrass and the carbon content of seagrass vegetation on Sintok Island and Menjangan Besar Island, Karimunjawa. Observation of seagrass ecosystem using LIPI method with 50x50cm quadrant transect. Seagrass tissue sampling was carried out randomly at each location using a seagrasscore tool. Calculation of carbon content in each seagrass tissue using Loss on Ignition (LOI method). There are 4 species of seagrass found on Sintok Island, while on Menjangan Besar Island there are 6 species. Sintok Island has a medium percent cover category and Menjangan Besar Island has a high percent cover category. The value of carbon storage on Sintok Island ranged from 2.59 – 61.07 gC/m2 while on Menjangan Besar Island it ranged from 5.97 – 404.57 gC/m2. In the Sintok Island, the largest value of carbon storage was Thalassia hemprichii and in the Menjangan Besar Island was held by Enhalus acoroides species. Good ecosystem conditions increase the ability of seagrass ecosystems to absorb carbon and mitigate global warming.","PeriodicalId":50153,"journal":{"name":"Journal of Marine Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46518345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-31DOI: 10.14710/jmr.v12i1.35087
Muhammad Aviv Arsya Irnantyanto, S. Subagiyo, S. Suryono
Instalasi Pengolahan Air Limbah Pelabuhan Perikanan Samudera Nizam Zachman Jakarta mengolah air limbah industri yang dihasilkan dari kegiatan industri pengolahan ikan. Seiring berjalannya waktu, perkembangan industri pengolahan ikan semakin meningkat sehingga menambah beban pencemaran air limbah. Bertambahnya usia pada komponen pengolahan limbah dan semakin bertambahnya beban pencemaran air limbah maka perlu dilakukan evaluasi untuk mengetahui efisiensi kinerja proses pengolahan air limbah. Evaluasi dilakukan pada beban pencemaran inlet dan outlet air limbah serta kinerja proses pada unit pengolahan air limbah. Pengukuran dan pengujian dilakukan untuk memperoleh data yang selanjutnya akan dilakukan analisis data. Hasil analisis akan dibandingkan dengan standar desain unit pengolahan dan hasil pengujian air limbah akan dibandingkan dengan baku mutu pengolahan ikan yang berlaku. Hasil uji inlet air limbah menunjukkan tingginya kandungan beban pencemaran organik yang dihasilkan oleh industri pengolahan ikan. Kemampuan Instalasi Pengolahan Limbah UPT PPS Nizam Zachman Jakarta menunjukkan nilai efisiensi penurunan beban pencemaran organik, yaitu X>80%. Nilai efisiensi penurunan beban pencemaran tersebut membuat parameter BOD, COD, TSS, Minyak dan Lemak tidak melebihi nilai baku mutu sehingga efisiensi penurunan beban pencemaran air limbah dinyatakan efektif, namun nilai efisiensi penurunan parameter amonia >80% masih melebihi nilai baku mutu, sehingga kinerja pengolahan air limbah dinyatakan tidak efektif dalam mengolah beban amonia pada air limbah. Wastewater Treatment Plant (WWTP) of Nizam Zachman Jakarta Fishing Port treats industrial wastewater produce from fish processing industry activities. Along the time, the development of the fish processing industry has increased that increasing the load of wastewater pollution. As the age of the waste treatment component increases and the load of wastewater pollution increases, it is necessary to evaluate the efficiency of the performance of the wastewater treatment process. Evaluation will be done on the influent and effluent pollution load of wastewater and process performance in the wastewater treatment unit. Measurement and examination conducted to obtain data for further data analysis. The results of the analysis will be compared with the WWTP design standards and the results of wastewater testing will be compared with the applicable fish processing quality standards. The results of the wastewater influent test show the high content of organic pollution loads produced by the fish processing industry. The penurunan efficiency of the wastewater treatment unit shows a very efficient level so that the results of the wastewater effluent test show a low pollution load value and are in accordance with the quality standard of Governor Regulation No. 69 of 2013 concerning Wastewater Quality Standards for Fish Processing Activities. Overall wastewater treatment performance shows a very efficient penurunan effi
{"title":"Optimasi Kinerja Instalasi Pengolahan Air Limbah Kawasan Pelabuhan Perikanan Samudera Nizam Zachman Jakarta","authors":"Muhammad Aviv Arsya Irnantyanto, S. Subagiyo, S. Suryono","doi":"10.14710/jmr.v12i1.35087","DOIUrl":"https://doi.org/10.14710/jmr.v12i1.35087","url":null,"abstract":"Instalasi Pengolahan Air Limbah Pelabuhan Perikanan Samudera Nizam Zachman Jakarta mengolah air limbah industri yang dihasilkan dari kegiatan industri pengolahan ikan. Seiring berjalannya waktu, perkembangan industri pengolahan ikan semakin meningkat sehingga menambah beban pencemaran air limbah. Bertambahnya usia pada komponen pengolahan limbah dan semakin bertambahnya beban pencemaran air limbah maka perlu dilakukan evaluasi untuk mengetahui efisiensi kinerja proses pengolahan air limbah. Evaluasi dilakukan pada beban pencemaran inlet dan outlet air limbah serta kinerja proses pada unit pengolahan air limbah. Pengukuran dan pengujian dilakukan untuk memperoleh data yang selanjutnya akan dilakukan analisis data. Hasil analisis akan dibandingkan dengan standar desain unit pengolahan dan hasil pengujian air limbah akan dibandingkan dengan baku mutu pengolahan ikan yang berlaku. Hasil uji inlet air limbah menunjukkan tingginya kandungan beban pencemaran organik yang dihasilkan oleh industri pengolahan ikan. Kemampuan Instalasi Pengolahan Limbah UPT PPS Nizam Zachman Jakarta menunjukkan nilai efisiensi penurunan beban pencemaran organik, yaitu X>80%. Nilai efisiensi penurunan beban pencemaran tersebut membuat parameter BOD, COD, TSS, Minyak dan Lemak tidak melebihi nilai baku mutu sehingga efisiensi penurunan beban pencemaran air limbah dinyatakan efektif, namun nilai efisiensi penurunan parameter amonia >80% masih melebihi nilai baku mutu, sehingga kinerja pengolahan air limbah dinyatakan tidak efektif dalam mengolah beban amonia pada air limbah. Wastewater Treatment Plant (WWTP) of Nizam Zachman Jakarta Fishing Port treats industrial wastewater produce from fish processing industry activities. Along the time, the development of the fish processing industry has increased that increasing the load of wastewater pollution. As the age of the waste treatment component increases and the load of wastewater pollution increases, it is necessary to evaluate the efficiency of the performance of the wastewater treatment process. Evaluation will be done on the influent and effluent pollution load of wastewater and process performance in the wastewater treatment unit. Measurement and examination conducted to obtain data for further data analysis. The results of the analysis will be compared with the WWTP design standards and the results of wastewater testing will be compared with the applicable fish processing quality standards. The results of the wastewater influent test show the high content of organic pollution loads produced by the fish processing industry. The penurunan efficiency of the wastewater treatment unit shows a very efficient level so that the results of the wastewater effluent test show a low pollution load value and are in accordance with the quality standard of Governor Regulation No. 69 of 2013 concerning Wastewater Quality Standards for Fish Processing Activities. Overall wastewater treatment performance shows a very efficient penurunan effi","PeriodicalId":50153,"journal":{"name":"Journal of Marine Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42333770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-31DOI: 10.14710/jmr.v12i3.35185
Devtiana Marchelia Ardang, Nirwani Soenardjo, Nur Taufiq-Spj
Mangrove merupakan vegetasi yang tumbuh diantara garis pantai dan dipengaruhi oleh pasang surut. Pertumbuhan ekosistem mangrove dapat dilihat melalui ukuran butir sedimen yaitu lumpur, liat dan pasir. Penelitian ini bertujuan untuk mengetahui hubungan tekstur sedimen terhadap mangrove di pantai utara Rembang. Metode kuantitatif diterapkan pada penelitian ini, pengambilan sampel didapat dari hutan mangrove Pasar banggi Kabupaten Rembang. Sampel sedimen dan data analisa vegetasi mangrove diambil dari 3 stasiun yang terbagi dalam 3 wilayah yaitu aliran sungai, daerah ekowisata dan daerah tambak garam. Hasil yang diperoleh dari tekstur sedimen di Desa Pasar Banggi didominasi oleh lumpur (28,48-49,3%), pasir (30,7-63,76) dan liat (0-18). Hasil penelitian menunjukkan bahwa kondisi kawasan mangrove di desa Pasar banggi termasuk padat karena memiliki nilai kategori kerapatan berkisar 1496,29-4266,67 ind/ha (KepMen LH NO. 21, 2004). Hasil uji regresi linier berganda menunjukkan bahwa hubungan antara tekstur sedimen dengan kerapatan mangrove pada PB1 (kerapatan rapat) mempunyai hubungan rendah dengan koefisien korelasi (R) 0,225; PB2 (kerapatan rapat) mempunyai hubungan yang sangat kuat dengan koefisien korelasi (R) 0,942; PB3 (kerapatan sedang) mempunyai hubungan sangat kuat dengan koefisien korelasi 0,999. Mangroves are vegetation that grows between shorelines and is influenced by tides. The growth of the mangrove ecosystem can be seen through the grain size of the sediment, namely mud, clay and sand. This study aims to determine the relationship between sediment texture and mangroves on the north coast of Rembang. Quantitative methods were applied in this study, sampling was obtained from the mangrove forest of Pasar Banggi, Rembang Regency. Sediment samples and mangrove vegetation analysis data were taken from 3 stations which were divided into 3 areas, namely river flows, ecotourism areas and salt pond areas. The results obtained from the sediment texture in Pasar Banggi Village are dominated by mud (28.48-49.3%), sand (30.7-63.76) and clay (0-18). The results showed that the condition of the mangrove area in Pasar Banggi village was dense because it had a density category value ranging from 1496.29 to 4266.67 ind/ha (KepMen LH NO. 21, 2004). The results of multiple linear regression test showed that the relationship between sediment texture and mangrove density in PB1 (density) had a low relationship with a correlation coefficient (R) of 0.225; PB2 (density) has a very strong relationship with a correlation coefficient (R) of 0.942; PB3 (medium density) has a very strong relationship with a correlation coefficient of 0.999.
{"title":"Hubungan Tekstur Sedimen Terhadap Vegetasi Mangrove Di Desa Pasar Banggi, Kabupaten Rembang","authors":"Devtiana Marchelia Ardang, Nirwani Soenardjo, Nur Taufiq-Spj","doi":"10.14710/jmr.v12i3.35185","DOIUrl":"https://doi.org/10.14710/jmr.v12i3.35185","url":null,"abstract":"Mangrove merupakan vegetasi yang tumbuh diantara garis pantai dan dipengaruhi oleh pasang surut. Pertumbuhan ekosistem mangrove dapat dilihat melalui ukuran butir sedimen yaitu lumpur, liat dan pasir. Penelitian ini bertujuan untuk mengetahui hubungan tekstur sedimen terhadap mangrove di pantai utara Rembang. Metode kuantitatif diterapkan pada penelitian ini, pengambilan sampel didapat dari hutan mangrove Pasar banggi Kabupaten Rembang. Sampel sedimen dan data analisa vegetasi mangrove diambil dari 3 stasiun yang terbagi dalam 3 wilayah yaitu aliran sungai, daerah ekowisata dan daerah tambak garam. Hasil yang diperoleh dari tekstur sedimen di Desa Pasar Banggi didominasi oleh lumpur (28,48-49,3%), pasir (30,7-63,76) dan liat (0-18). Hasil penelitian menunjukkan bahwa kondisi kawasan mangrove di desa Pasar banggi termasuk padat karena memiliki nilai kategori kerapatan berkisar 1496,29-4266,67 ind/ha (KepMen LH NO. 21, 2004). Hasil uji regresi linier berganda menunjukkan bahwa hubungan antara tekstur sedimen dengan kerapatan mangrove pada PB1 (kerapatan rapat) mempunyai hubungan rendah dengan koefisien korelasi (R) 0,225; PB2 (kerapatan rapat) mempunyai hubungan yang sangat kuat dengan koefisien korelasi (R) 0,942; PB3 (kerapatan sedang) mempunyai hubungan sangat kuat dengan koefisien korelasi 0,999. Mangroves are vegetation that grows between shorelines and is influenced by tides. The growth of the mangrove ecosystem can be seen through the grain size of the sediment, namely mud, clay and sand. This study aims to determine the relationship between sediment texture and mangroves on the north coast of Rembang. Quantitative methods were applied in this study, sampling was obtained from the mangrove forest of Pasar Banggi, Rembang Regency. Sediment samples and mangrove vegetation analysis data were taken from 3 stations which were divided into 3 areas, namely river flows, ecotourism areas and salt pond areas. The results obtained from the sediment texture in Pasar Banggi Village are dominated by mud (28.48-49.3%), sand (30.7-63.76) and clay (0-18). The results showed that the condition of the mangrove area in Pasar Banggi village was dense because it had a density category value ranging from 1496.29 to 4266.67 ind/ha (KepMen LH NO. 21, 2004). The results of multiple linear regression test showed that the relationship between sediment texture and mangrove density in PB1 (density) had a low relationship with a correlation coefficient (R) of 0.225; PB2 (density) has a very strong relationship with a correlation coefficient (R) of 0.942; PB3 (medium density) has a very strong relationship with a correlation coefficient of 0.999.","PeriodicalId":50153,"journal":{"name":"Journal of Marine Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46222922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-31DOI: 10.14710/jmr.v12i1.37503
Alifia Rizky Novitasari, Woro Hastuti Satyantini, Sapto Andriyono, Nor Sa’adah
Polyethylene terephthalate (PET) adalah salah satu polimer termoplastik paling banyak tersedia di pasar. PET digunakan untuk produksi botol atau wadah untuk minuman, seperti air, minuman ringan berkarbonasi, minuman jus, dan industri makanan. Polyethylene terephthalate (PET) ditemukan melimpah pada sedimen ekosistem mangrove di Pasir Putih Wonorejo pada musim hujan sebanyak 59%. Studi terbaru telah menunjukkan bahwa bakteri indigenous sedimen mangrove mampu mendegradasi mikroplastik. Sehingga, tujuan penelitian ini adalah menemukan potensi agen biodegradasi mikroplastik dari bakteri indigenous sedimen ekosistem mangrove di Pasir Putih Wonorejo. Bakteri diisolasi pada April 2022 dari sedimen ekosistem mangrove. Metode yang digunakan diawali dengan isolasi bakteri dari sedimen ekosistem mangrove Pasir Putih Wonorejo, kemudian digunakan untuk uji degradasi mikroplastik polyethylene terephthalate dan mengetahui jenis bakteri yang memiliki kemampuan mendegradasi mikroplastik. Hasil isolat bakteri yang didapat sebanyak 16 bakteri. Potensi bakteri yang menjadi agen biodegradasi dengan penurunan berat mikroplastik isolat bakteri SPP.1.1.3. sebesar 8,73%. Identifikasi molekuler dengan cara ekstraksi DNA 16S rRNA menunjukkan jenis Pseudoaltoromonas caenipelagi dengan homologi 99% pada database National Center Biotechnology Information. Hasil ini membuktikan bahwa bakteri indigenous memiliki kemampuan sebagai agen biodegradasi mikroplastik. Polyethylene terephthalate (PET) is one of the most widely available thermoplastic polymers on the market. PET is used for the production of bottles or containers for beverages, such as water, carbonated soft drinks, juices, and the food industry. Polyethylene terephthalate (PET) is found abundantly in mangrove ecosystem sediments in Pasir Putih Wonorejo during the rainy season as much as 59%. Recent studies have shown that indigenous mangrove sediment bacteria are able to degrade microplastics. Thus, the purpose of this study was to find potential agents for biodegradation of microplastics from indigenous bacteria in mangrove ecosystem sediments Pasir Putih Wonorejo. Bacteria were isolated in April 2022 from mangrove ecosystem sediments. The method used begins with The isolation of bacteria from mangrove ecosystems sediments from Pasir Putih Wonorejo, then were used to assay biodegradation of polyethylene terephthalate microplastics and to determine the types of bacteria that has ability to degrade microplastics. The results of isolated bacterial obtained were 16 bacterias. The potential bacteria that becoming agents of biodegradation by decreasing the weight of microplastic isolate SPP.1.1.3. by 8,73%. Molecular identification by extraction of DNA 16S rRNA showed the type of Pseudoaltoromonas caenipelagi with 99% homology in the National Center Biotechnology Information database. These results prove that indigenous bacteria have the ability as microplastic biodegradation agents.
聚乙烯是市场上最容易获得的热塑性聚合物之一。PET被用来生产瓶装或容器，如水、碳酸软饮料、果汁和食品行业。在雨季，在Wonorejo的白沙上发现了大量的磷酸铵。最近的研究表明，未受抑制的沉积物具有可降解微塑料的能力。因此，这项研究的目的是在Wonorejo白色沙地上发现一种无菌沉积物，其潜在的微生物降解剂。细菌于2022年4月从红树林生态系统的沉积物中分离出来。使用的方法从带壳的白沙红树林生态系统沉积物中分离出细菌，然后用于检测聚酯微塑料降解，并了解带有微塑料降解能力的微生物类型。我们得到了16种细菌的分离物。潜在的细菌是一种生物降解的病原体，其重量为1.1.3细菌隔离微生物。8,73%大小。通过DNA提取16S rRNA的DNA鉴定，分子鉴定与国家生物技术信息数据库99%相同。这些结果证明无抑制细菌具有微塑料生物降解的能力。聚酯是市场上最可靠的热塑性聚酯聚酯之一。这只宠物是用来生产瓶子或容器的，就像水、碳酸饮料、果汁和食品工业一样。聚乙烯沉积在mangrove ecosystem中，沉积在白色的沙上，价格为59%。Recent studies shown that ininous mangrove沉积细菌有可能退化微生物。因此，这项研究的目的是寻找一种潜在的生物降解剂，用于从红树林生态系统中不可抑制的细菌沉积白沙Wonorejo。细菌于2022年4月从红树林生态系统沉积物中分离出来。从mangrove ecosystems从Wonorejo的白沙中提取的细菌孤立开始，然后用来确定一种用于分解微塑料的化合物。被隔离细菌的结果是16种细菌。由微小塑料SPP.1.1.3分解生物降解的潜在细菌制剂。由8,73%。DNA提取16S rRNA展示的伪分子识别类型与国家生物技术信息数据库中99%的同质。这些结果证明，无菌细菌具有微生物保护的能力。
{"title":"Isolasi dan Identifikasi Bakteri Pengurai Mikroplastik Polyethylene Terephthalate dari Sedimen Ekosistem Mangrove Pasir Putih","authors":"Alifia Rizky Novitasari, Woro Hastuti Satyantini, Sapto Andriyono, Nor Sa’adah","doi":"10.14710/jmr.v12i1.37503","DOIUrl":"https://doi.org/10.14710/jmr.v12i1.37503","url":null,"abstract":"Polyethylene terephthalate (PET) adalah salah satu polimer termoplastik paling banyak tersedia di pasar. PET digunakan untuk produksi botol atau wadah untuk minuman, seperti air, minuman ringan berkarbonasi, minuman jus, dan industri makanan. Polyethylene terephthalate (PET) ditemukan melimpah pada sedimen ekosistem mangrove di Pasir Putih Wonorejo pada musim hujan sebanyak 59%. Studi terbaru telah menunjukkan bahwa bakteri indigenous sedimen mangrove mampu mendegradasi mikroplastik. Sehingga, tujuan penelitian ini adalah menemukan potensi agen biodegradasi mikroplastik dari bakteri indigenous sedimen ekosistem mangrove di Pasir Putih Wonorejo. Bakteri diisolasi pada April 2022 dari sedimen ekosistem mangrove. Metode yang digunakan diawali dengan isolasi bakteri dari sedimen ekosistem mangrove Pasir Putih Wonorejo, kemudian digunakan untuk uji degradasi mikroplastik polyethylene terephthalate dan mengetahui jenis bakteri yang memiliki kemampuan mendegradasi mikroplastik. Hasil isolat bakteri yang didapat sebanyak 16 bakteri. Potensi bakteri yang menjadi agen biodegradasi dengan penurunan berat mikroplastik isolat bakteri SPP.1.1.3. sebesar 8,73%. Identifikasi molekuler dengan cara ekstraksi DNA 16S rRNA menunjukkan jenis Pseudoaltoromonas caenipelagi dengan homologi 99% pada database National Center Biotechnology Information. Hasil ini membuktikan bahwa bakteri indigenous memiliki kemampuan sebagai agen biodegradasi mikroplastik. Polyethylene terephthalate (PET) is one of the most widely available thermoplastic polymers on the market. PET is used for the production of bottles or containers for beverages, such as water, carbonated soft drinks, juices, and the food industry. Polyethylene terephthalate (PET) is found abundantly in mangrove ecosystem sediments in Pasir Putih Wonorejo during the rainy season as much as 59%. Recent studies have shown that indigenous mangrove sediment bacteria are able to degrade microplastics. Thus, the purpose of this study was to find potential agents for biodegradation of microplastics from indigenous bacteria in mangrove ecosystem sediments Pasir Putih Wonorejo. Bacteria were isolated in April 2022 from mangrove ecosystem sediments. The method used begins with The isolation of bacteria from mangrove ecosystems sediments from Pasir Putih Wonorejo, then were used to assay biodegradation of polyethylene terephthalate microplastics and to determine the types of bacteria that has ability to degrade microplastics. The results of isolated bacterial obtained were 16 bacterias. The potential bacteria that becoming agents of biodegradation by decreasing the weight of microplastic isolate SPP.1.1.3. by 8,73%. Molecular identification by extraction of DNA 16S rRNA showed the type of Pseudoaltoromonas caenipelagi with 99% homology in the National Center Biotechnology Information database. These results prove that indigenous bacteria have the ability as microplastic biodegradation agents.","PeriodicalId":50153,"journal":{"name":"Journal of Marine Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41541610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-31DOI: 10.14710/jmr.v12i1.35040
Abista Ahmad Romadoni, R. Ario, Ibnu Pratikto
Ekosistem mangrove merupakan ekosistem dengan komponen sumberdaya alam meliputi bentang alam, flora, fauna, dan masyarakat sekitar dengan beragam fungsi seperti ekologis, ekonomis dan sosial. Alih fungsi lahan mangrove untuk tambak dan pemukiman yang masif dilakukan mengakibatkan kondisi mangrove di Ujung Piring dan Teluk Awur mengalami penurunan kualitas ekosistem mangrove. Informasi spasial kondisi terkini ekosistem mangrove yang belum tersedia mengakibatkan upaya pencegahan kerusakan dan konservasi ekosistem mangrove tidak berjalan maksimal. Tujuan penelitian ini adalah mengetahui sebaran, luas, dan kondisi kesehatan mangrove di kawasan Ujung Piring dan Teluk Awur menggunakan citra Sentinel 2A melalui penginderaan jauh dan validasi lapangan. Pendekatan penginderaan jauh memadukan composite band dengan supervised classification dilakukan untuk mengetahui sebaran dan metode Normalized Difference Vegetation Index (NDVI) untuk mengetahui luas dan kondisi kesehatan mangrove. Validasi lapangan menerapkan hemispherical photography untuk menganalisa tutupan kanopi mangrove di lapangan. Hasil penelitian menunjukkan mangrove kawasan Ujung Piring tersebar di area pantai, ekowisata, dan tambak. Luas mangrove di kawasan Ujung Piring sebesar 21,004 ha terdiri dari 17,519 ha (83,41%) kategori lebat; 2,527 ha (12,03%) kategori sedang; dan 0,958 ha (4,56%) kategori jarang. Mangrove kawasan Teluk Awur dapat dijumpai di area pantai, daerah konservasi mangrove, tambak, aliran sungai, pemukiman, dan lahan terbuka. Mangrove di kawasan Teluk Awur memilki luas 10,657 ha tersusun oleh 8,013 ha (75,1% kategori lebat); 0,688 ha (6,5%) kategori sedang; dan 1,956 ha (18,4%) kategori jarang. The mangrove ecosystem contains various natural resource components including landscapes, flora, fauna, and its surrounding communities with various ecological, economic, and social functions. Massive conversion of mangrove area for ponds and settlements has reduced the ecosystem quality of mangroves in Ujung Piring and Teluk Awur. The lack or even inexistence of spatial information regarding the current condition of the mangrove ecosystem has hindered the efforts to prevent damage and conserve mangrove ecosystem from running optimally. This research sought to examine the distribution, area, and health condition of mangroves in Ujung Piring and Teluk Awur areas using Sentinel-2A imagery by means of remote sensing and field validation. The remote sensing approach combined composite bands with supervised classification to determine the distribution and the Normalized Difference Vegetation Index (NDVI) method to determine the extent and health conditions of mangroves. The field validation applied hemispherical photography to analyze mangrove canopy cover in the field. The research results revealed that the mangroves in Ujung Piring area were distributed in coastal, ecotourism, and pond areas. The mangroves in Ujung Piring area measured 21.004 ha consisting of 17.519 ha (83.41%) in the de
红树林生态系统是一个由自然资源组成的生态系统，其组成包括地形、植物、动物和周边社区的生态、经济和社会等多种功能。通过对大型池塘和定居点的覆盖，红树林的土地功能得到了补偿，这导致了板块底部和Awur湾的红树林条件下降。最近还没有可用的红树林生态系统的空间信息，导致防止破坏和保护红树林生态系统的努力被打破。本研究的目标是了解板块端和Awur湾的mangrove分布、分布范围和健康状况，并通过遥感和现场验证对哨兵2A的印象。遥感方法将合成波段与显微分类法结合起来，以确定不同植被指数的分布和方法，以了解红树林的面积和健康状况。现场验证采用半球形摄影技术分析田野冠套。研究结果显示，红树林的端部分布在沿海、生态旅游和池塘。在板块末端的红树林面积为21,004 ha，由17.519 ha(83.41%)组成;1527 ha(12.03%)中级;而0.958 ha(4.56%)的类别是罕见的。Awur湾的Mangrove区域可以在沿海地区、Mangrove保护区、池塘、小溪、定居点和开放的土地上找到。Awur湾的红树林面积为10.657 ha，由8.013 ha (75.1%);0.688 ha(6.5%)中级;而1856 ha(18.4%)是稀有类别。红树林生态系统与多种生态环境、动植物、动物和其相互作用的公共性联系在一起。大量的锰链区域被低估了关于食物生态系统的某些不存在的信息这一研究有助于解决板块末端和海湾的分布、区域和健康状况。以检测分布和标准不同蔬菜指数的方法确定存在和健康的mangroves。分析卡通canopy封面。研究结果显示，在板块末端出现的猎物分布在海岸、生态环境和池塘地区。盘边的mangroves是21004 ha，记录在丹麦的17519 ha (88.41%);2,527 ha(12.03%)介质类别;*功夫好*该地区的红树林被发现在海岸、红树林保护、池塘、河口、空地和开放区域。位于海湾的mangroves是10.657 ha，提示8.013 ha(75.1%的丹麦类别);0.688 ha(6.5%)分类媒体;看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧看吧
{"title":"Analisa Kesehatan Mangrove di Kawasan Ujung Piring dan Teluk Awur Menggunakan Sentinel-2A","authors":"Abista Ahmad Romadoni, R. Ario, Ibnu Pratikto","doi":"10.14710/jmr.v12i1.35040","DOIUrl":"https://doi.org/10.14710/jmr.v12i1.35040","url":null,"abstract":"Ekosistem mangrove merupakan ekosistem dengan komponen sumberdaya alam meliputi bentang alam, flora, fauna, dan masyarakat sekitar dengan beragam fungsi seperti ekologis, ekonomis dan sosial. Alih fungsi lahan mangrove untuk tambak dan pemukiman yang masif dilakukan mengakibatkan kondisi mangrove di Ujung Piring dan Teluk Awur mengalami penurunan kualitas ekosistem mangrove. Informasi spasial kondisi terkini ekosistem mangrove yang belum tersedia mengakibatkan upaya pencegahan kerusakan dan konservasi ekosistem mangrove tidak berjalan maksimal. Tujuan penelitian ini adalah mengetahui sebaran, luas, dan kondisi kesehatan mangrove di kawasan Ujung Piring dan Teluk Awur menggunakan citra Sentinel 2A melalui penginderaan jauh dan validasi lapangan. Pendekatan penginderaan jauh memadukan composite band dengan supervised classification dilakukan untuk mengetahui sebaran dan metode Normalized Difference Vegetation Index (NDVI) untuk mengetahui luas dan kondisi kesehatan mangrove. Validasi lapangan menerapkan hemispherical photography untuk menganalisa tutupan kanopi mangrove di lapangan. Hasil penelitian menunjukkan mangrove kawasan Ujung Piring tersebar di area pantai, ekowisata, dan tambak. Luas mangrove di kawasan Ujung Piring sebesar 21,004 ha terdiri dari 17,519 ha (83,41%) kategori lebat; 2,527 ha (12,03%) kategori sedang; dan 0,958 ha (4,56%) kategori jarang. Mangrove kawasan Teluk Awur dapat dijumpai di area pantai, daerah konservasi mangrove, tambak, aliran sungai, pemukiman, dan lahan terbuka. Mangrove di kawasan Teluk Awur memilki luas 10,657 ha tersusun oleh 8,013 ha (75,1% kategori lebat); 0,688 ha (6,5%) kategori sedang; dan 1,956 ha (18,4%) kategori jarang. The mangrove ecosystem contains various natural resource components including landscapes, flora, fauna, and its surrounding communities with various ecological, economic, and social functions. Massive conversion of mangrove area for ponds and settlements has reduced the ecosystem quality of mangroves in Ujung Piring and Teluk Awur. The lack or even inexistence of spatial information regarding the current condition of the mangrove ecosystem has hindered the efforts to prevent damage and conserve mangrove ecosystem from running optimally. This research sought to examine the distribution, area, and health condition of mangroves in Ujung Piring and Teluk Awur areas using Sentinel-2A imagery by means of remote sensing and field validation. The remote sensing approach combined composite bands with supervised classification to determine the distribution and the Normalized Difference Vegetation Index (NDVI) method to determine the extent and health conditions of mangroves. The field validation applied hemispherical photography to analyze mangrove canopy cover in the field. The research results revealed that the mangroves in Ujung Piring area were distributed in coastal, ecotourism, and pond areas. The mangroves in Ujung Piring area measured 21.004 ha consisting of 17.519 ha (83.41%) in the de","PeriodicalId":50153,"journal":{"name":"Journal of Marine Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43903694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-14DOI: 10.14710/jmr.v12i1.35769
A. Nurfajri, Nasmia Nasmia
Rumput laut jenis Eucheuma cottonii adalah salah satu hasil perikanan yang mempunyai nilai ekonomis cukup penting karena mengandung karagenan yang merupakan bahan dasar dalam industri farmasi, makanan, maupun bahan industri lain. Mengingat besarnya permintaan pasar akan kebutuhan rumput laut maka perlu dilakukan usaha untuk meningkatkan produksinya. Namun seiring dengan meningkatnya permintaan, pembudidaya sering mengalami permasalahan antara lain bibit rumput laut yang dihasilkan belum maskimal baik dari segi jumlah maupun kualitas, sehingga perlu ada kajian untuk menghasilkan pertumbuhan benih bibit rumput laut yang baik yaitu menggunakan pupuk Conway pada media kultur rumput laut dari hasil kultur jaringan. Pupuk conway mengandung unsur nutrien yang sangat bermanfaat bagi pertumbuhan rumput laut. Penelitian ini bertujuan untuk mendapatkan dosis pupuk Conway yang tepat pada media kultur terhadap pertumbuhan bibit rumput laut E. cottonii. Penelitian ini menggunakan E.cottoni dari hasil kultur jaringan Seameo Biotrop. Penelitian ini menggunakan Rancangan Acak Lengkap dengan 5 perlakuan dan 5 ulangan yaitu dosis pupuk Conway (0, 2, 4, 6, dan 8 ml). Padat tebar E.cottoni yaitu 5 eksplan per wadah. Hasil penelitian didapatkan bahwa pemberian pupuk Conway dengan dosis berbeda berpengaruh sangat nyata (P<0.01) terhadap pertumbuhan panjang mutlak dan laju pertumbuhan spesifik, serta pertumbuhan bobot mutlak E. cottonii, dengan nilai tertinggi yaitu masing-masing 1,04 cm, 0,014%, dan 0,25 g pada perlakuan dosis pupuk Conway 8 ml. Seaweed Eucheuma cottonii is one of the fishery products that have highly important economic value because it contains carrageenan which is a basic ingredient in pharmaceuticals, food, and other industrial materials. Given the large market demand for seaweed, it is necessary to make efforts to increase production. However, along with increasing demand, cultivators often experience problems, the constraints that are often experienced are, among others, the seaweed seeds produced are not optimal both in terms of quantity and quality, so there needs to be a study to produce good seaweed seed growth, namely using Conway fertilizer on seaweed culture media from tissue culture results. Conway fertilizer contains nutrients that are very beneficial for the growth of seaweed. This study aims to obtain the correct dosage of Conway fertilizer in culture media on the growth of E. cottonii seaweed seedlings. This study used E.cottoni from the Seameo Biotrop tissue culture. It used a completely randomized design with 5 treatments and 5 replications, namely the dose of Conway fertilizer (0, 2, 4, 6, and 8 ml). The stocking density of E. cottoni was 5 explants per container. The results showed that the application of Conway fertilizer with different doses had a very significant effect (P<0.01) on absolute length growth, specific growth rate, and absolute weight growth of E. cottonii, with the highest values of 1.04 cm, 0.014%, and 0,25 g, res
{"title":"Penggunaan Pupuk Conway Pada Media Kultur Terhadap Pertumbuhan Bibit Rumput Laut Eucheuma cottonii","authors":"A. Nurfajri, Nasmia Nasmia","doi":"10.14710/jmr.v12i1.35769","DOIUrl":"https://doi.org/10.14710/jmr.v12i1.35769","url":null,"abstract":"Rumput laut jenis Eucheuma cottonii adalah salah satu hasil perikanan yang mempunyai nilai ekonomis cukup penting karena mengandung karagenan yang merupakan bahan dasar dalam industri farmasi, makanan, maupun bahan industri lain. Mengingat besarnya permintaan pasar akan kebutuhan rumput laut maka perlu dilakukan usaha untuk meningkatkan produksinya. Namun seiring dengan meningkatnya permintaan, pembudidaya sering mengalami permasalahan antara lain bibit rumput laut yang dihasilkan belum maskimal baik dari segi jumlah maupun kualitas, sehingga perlu ada kajian untuk menghasilkan pertumbuhan benih bibit rumput laut yang baik yaitu menggunakan pupuk Conway pada media kultur rumput laut dari hasil kultur jaringan. Pupuk conway mengandung unsur nutrien yang sangat bermanfaat bagi pertumbuhan rumput laut. Penelitian ini bertujuan untuk mendapatkan dosis pupuk Conway yang tepat pada media kultur terhadap pertumbuhan bibit rumput laut E. cottonii. Penelitian ini menggunakan E.cottoni dari hasil kultur jaringan Seameo Biotrop. Penelitian ini menggunakan Rancangan Acak Lengkap dengan 5 perlakuan dan 5 ulangan yaitu dosis pupuk Conway (0, 2, 4, 6, dan 8 ml). Padat tebar E.cottoni yaitu 5 eksplan per wadah. Hasil penelitian didapatkan bahwa pemberian pupuk Conway dengan dosis berbeda berpengaruh sangat nyata (P<0.01) terhadap pertumbuhan panjang mutlak dan laju pertumbuhan spesifik, serta pertumbuhan bobot mutlak E. cottonii, dengan nilai tertinggi yaitu masing-masing 1,04 cm, 0,014%, dan 0,25 g pada perlakuan dosis pupuk Conway 8 ml. Seaweed Eucheuma cottonii is one of the fishery products that have highly important economic value because it contains carrageenan which is a basic ingredient in pharmaceuticals, food, and other industrial materials. Given the large market demand for seaweed, it is necessary to make efforts to increase production. However, along with increasing demand, cultivators often experience problems, the constraints that are often experienced are, among others, the seaweed seeds produced are not optimal both in terms of quantity and quality, so there needs to be a study to produce good seaweed seed growth, namely using Conway fertilizer on seaweed culture media from tissue culture results. Conway fertilizer contains nutrients that are very beneficial for the growth of seaweed. This study aims to obtain the correct dosage of Conway fertilizer in culture media on the growth of E. cottonii seaweed seedlings. This study used E.cottoni from the Seameo Biotrop tissue culture. It used a completely randomized design with 5 treatments and 5 replications, namely the dose of Conway fertilizer (0, 2, 4, 6, and 8 ml). The stocking density of E. cottoni was 5 explants per container. The results showed that the application of Conway fertilizer with different doses had a very significant effect (P<0.01) on absolute length growth, specific growth rate, and absolute weight growth of E. cottonii, with the highest values of 1.04 cm, 0.014%, and 0,25 g, res","PeriodicalId":50153,"journal":{"name":"Journal of Marine Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41852239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Memanfaatkan lahan dan sumber daya alam untuk tujuan ekowisata membutuhkan desain yang terkait dengan kesesuaian atraksi dan daya dukung wilayahnya. Penelitian ini bertujuan untuk menilai kesesuaian alokasi lahan kawasan dan daya dukungnya untuk kegiatan pariwisata di wilayah Pantai Tilalohe. Metode penelitian terdiri dari metode survei untuk kondisi bio-fisik dan penelitian literatur untuk karakteristik area pantai Tilalohe, serta kesesuaian dan daya dukung wilayah sebagai tujuan wisata. Hasilnya menunjukkan bahwa pantai Tilalohe secara geomorfologis memiliki karakteristik pantai saku. Jenis atraksi yang paling cocok adalah duduk dengan santai di semua stasiun pada lahan utama dengan luas 1315,45 m2 dengan garis pantai di sepanjang 114,84 m. Perairan di depan tanah utama, dengan luas 5965,20 m2 dan garis pantai 182,79 m, sangat mendukung pengunjung untuk kegiatan mandi dan berenang di wilayah timur. Studi ini menunjukkan peran penting analisis kesesuaian dan daya dukung untuk arahan peruntukan lahan untuk kegiatan ekowisata berdasarkan prinsip-prinsip perlindungan lingkungan dan keberlanjutan manfaat. Utilizing land and natural resources for ecotourism purposes requires a design related to the suitability of the attractions and its region's carrying capacity. This study aims to assess the suitability of the region's land allocation and its carrying capacity for tourism activities in the Tilalohe Beach area. The research method consists of survey methods for bio-physical conditions and literature research for the characteristics of the Tilalohe Beach area, as well as the suitability and carrying capacity of the region as a tourist destination. The results show that geomorphologically Tilalohe beach has characteristics of a pocket beach. The most suitable attraction is sitting casually at all stations on the main land with an area of 1315.45 m2 with coastlines along 114.84 m. This study shows an essential role of analysis of the suitability and carrying capacity of the area in the direction of land allotment for ecotourism activities based on the principles of environmental protection and the sustainability of benefits.
{"title":"Kesesuaian dan Daya Dukung Kawasan Wisata Pantai Tilalohe, Batudaa Pantai, Kabupaten Gorontalo","authors":"Citra Panigoro, Arfiani Rizki Paramata, Faizal Kasim, Maharani Nurul Fadila Akase","doi":"10.14710/jmr.v12i1.35466","DOIUrl":"https://doi.org/10.14710/jmr.v12i1.35466","url":null,"abstract":"Memanfaatkan lahan dan sumber daya alam untuk tujuan ekowisata membutuhkan desain yang terkait dengan kesesuaian atraksi dan daya dukung wilayahnya. Penelitian ini bertujuan untuk menilai kesesuaian alokasi lahan kawasan dan daya dukungnya untuk kegiatan pariwisata di wilayah Pantai Tilalohe. Metode penelitian terdiri dari metode survei untuk kondisi bio-fisik dan penelitian literatur untuk karakteristik area pantai Tilalohe, serta kesesuaian dan daya dukung wilayah sebagai tujuan wisata. Hasilnya menunjukkan bahwa pantai Tilalohe secara geomorfologis memiliki karakteristik pantai saku. Jenis atraksi yang paling cocok adalah duduk dengan santai di semua stasiun pada lahan utama dengan luas 1315,45 m2 dengan garis pantai di sepanjang 114,84 m. Perairan di depan tanah utama, dengan luas 5965,20 m2 dan garis pantai 182,79 m, sangat mendukung pengunjung untuk kegiatan mandi dan berenang di wilayah timur. Studi ini menunjukkan peran penting analisis kesesuaian dan daya dukung untuk arahan peruntukan lahan untuk kegiatan ekowisata berdasarkan prinsip-prinsip perlindungan lingkungan dan keberlanjutan manfaat. Utilizing land and natural resources for ecotourism purposes requires a design related to the suitability of the attractions and its region's carrying capacity. This study aims to assess the suitability of the region's land allocation and its carrying capacity for tourism activities in the Tilalohe Beach area. The research method consists of survey methods for bio-physical conditions and literature research for the characteristics of the Tilalohe Beach area, as well as the suitability and carrying capacity of the region as a tourist destination. The results show that geomorphologically Tilalohe beach has characteristics of a pocket beach. The most suitable attraction is sitting casually at all stations on the main land with an area of 1315.45 m2 with coastlines along 114.84 m. This study shows an essential role of analysis of the suitability and carrying capacity of the area in the direction of land allotment for ecotourism activities based on the principles of environmental protection and the sustainability of benefits.","PeriodicalId":50153,"journal":{"name":"Journal of Marine Research","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67006698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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