Jurnal SAINS ALAMI (Known Nature)最新文献

{"title":"Studi Perbandingan Aktivitas Harian Kelompok Lutung jawa Betina (Trachypithecus auratus) Sebelum dan Sesudah Dilepasliarkan Di Hutan Lindung Coban Talun","authors":"Febrian Priska Amalia Putri, Hari Santoso, Hasan Zayadi","doi":"10.33474/j.sa.v5i1.13017","DOIUrl":"https://doi.org/10.33474/j.sa.v5i1.13017","url":null,"abstract":"The population of east javan langur (Trachypithecus auratus) the number in nature continues to decrease, rehabilitation is one way to preserve the population. This study aims to compare the daily activity before and after release the east javan langur. To approach the aim of the study, the researcher used focal animal sampling and scans sampling and noted with Instantaneous Sampling then calculated the percentage.  Data of the observation obtained by recording the daily activities of east javan langur in the barn or in the nature  includes the movement activity (walking, running, jumping and climbing) break time activity (sit back, sit alert, standing, sleeping, prone and supine),  agononistic social activity ( sound, chase, and snatch the food, hit and fight),  grooming activity (allo-grooming and auto-grooming) eat, drink, urination and defecation. The finding of this research showed that the presentation of daily activities of east javan langur in the barn is first, the break time activity (42, 9%), second, eat and drink activity (24, 1%), grooming (18.6%), movement (8.2%), social agonistic (3.3%), urination and defecation (2.3%) and  sexual (0.6%).  Then for the daily activities in the nature, movement (34.6%), break time activity (29.0%), eat and drink (22.7%), grooming (8.7%), urination and defecation (0.9%) and sexual (0%). The tentative conclusion before the high released activity in the nature is the break time activity. the highest activity of east javan langur presumed freedom of location area to doing activity like movement, temperature intensity, feed abundance and the presence of the opposite sex.Keywords: Javan Langur, Comparison of Activity, FactorABSTRAKPopulasi Lutung Jawa (Trachypithecus auratus) jumlahnya di alam terus menurun, salah satu usaha pelestarianya dengan melakukan rehabilitasi. Tujuan penelitian untuk mengetahui perbandingan aktivitas harian sebelum dan sesudah pelepasliaran Lutung Jawa. Metode yang digunakan yaitu Focal Animal Sampling dan Scan Sampling dengan pencatatan Instantaneous Sampling kemudian dihitung persentasenya. Data pengamatan diperoleh dari pencatatan aktivitas harian lutung jawa di kandang maupun di hutan meliputi aktivitas bergerak (berjalan, berlari, melompat dan memanjat), aktivitas istirahat (duduk rileks, duduk waspada, berdiri, tidur, menelungkup dan terlentang), aktivitas sosial-agonistik (bersuara, mengejar, merebut makanan, memukul dan berkelahi), aktivitas grooming (allo-grooming dan auto-grooming), makan, minum, urinasi dan defekasi. Hasil penelitian menunjukkan persentase aktivitas di kandang yakni istirahat (42.9%), makan dan minum (24.1%), grooming (18.6%), bergerak (8.2%), sosial agonistic (3.3%), urinasi dan defekasi (2.3%) dan seksual (0.6%). Untuk aktivitas harian di hutan yakni bergerak (34.6%), istirahat (29.0%), makan & minum (22.7%), grooming (8.7%), urinasi dan defekasi (0.9%) dan seksual (0%). Kesimpulan sementara sebelum dilepasliarkan aktivitas tertinggi dalam kandang adal","PeriodicalId":346598,"journal":{"name":"Jurnal SAINS ALAMI (Known Nature)","volume":"84 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130661543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimasi Karbon pada Tegakan Varietas Kopi Arabika (Coffea arabica) Di Lahan Agroforestri Precet Wilayah Resort Pemangkuan Hutan Wagir KPH Malang","authors":"L. Istiqomah, Saimul Laili, Hasan Zayadi","doi":"10.33474/j.sa.v5i1.12819","DOIUrl":"https://doi.org/10.33474/j.sa.v5i1.12819","url":null,"abstract":"Global warming that causes climate change is due to increased emissions of greenhouse gases (GHG) in the form of CO2, CH4 and other forms in the atmosphere. The application of the agroforestry system is one of the efforts to overcome the need for agricultural land by maintaining the function of the forest and the environment. The purpose of this study was to determine the potential for carbon stored in Arabica coffee (Coffea arabica) stands and to determine abiotic factors in the locations where Arabica coffee (Coffea arabica) stands grow in agroforestry areas. This research used descriptive method and coffee stand sampling technique using non-destructive purposive sampling. For each stand sample, 25 trees were taken for each Gayo 1, p88 and Ateng coffee varieties so that the total sample size was 75 trees. Calculation data analysis includes allometric Ketterings dry weight = 0.11 D2.62 (2001) and Arifin allometric formula = 0.281 D2.0635 (2001). Analysis of biomass data carbon = dry weight x 0.47. The results showed that the largest carbon storage was found in the Gayo 1 variety, then the p88 variety and the smallest carbon storage was found in the Ateng variety. Abiotic factors in coffee agroforestry show soil moisture 18.3%, air humidity 60-75%, soil pH 7.5%, soil temperature 21°C, air temperature 21-25°C with an altitude of 900-1100 masl. Abiotic factors affect plant growth, and light intensity also affects plant biomass.Keywords: Agroforestry, Allometrics, Abiotic Factors, Carbon, Coffee VarietiesABSTRAKPemanasan global yang menimbulkan perubahan iklim dikarenakan meningkatnya emisi gas rumah kaca (GRK) dalam bentuk CO2, CH4dan bentuk lainnyadi atmosfer. Penerapan sistem agroforestri merupakan salah satu upaya untuk mengatasi kebutuhan lahan pertanian dengan mempertahankan fungsi hutan dan lingkungan. Tujuan penelitian ini untuk mengetahui potensi karbon tersimpan pada tegakan varietas kopi Arabika (Coffea arabica) dan untuk mengetahui faktor abiotik di lokasi tempat tumbuh tegakan varietas kopi Arabika (Coffea arabica) di lahan agroforestri. Penelitian ini menggunakan metode deskriptif dan teknik sampling tegakan kopi menggunakan purposive sampling non-destructive. Tiap sampel tegakan diambil 25 pohon pada setiap varietas kopi Gayo 1, p88 dan Ateng sehingga jumlah sampel keseluruhan 75 pohon. Analisa data perhitungan meliputi allometrik Ketterings berat kering = 0,11 ρ D2,62 (2001) dan rumus allometrik Arifin = 0,281 D2,0635 (2001). Analilis data biomasa karbon = berat kering x 0,47. Hasil penelitian menunjukkan simpanan karbon terbesar terdapat pada varietas Gayo 1, kemudian varietas p88 dan simpanan karbon paling kecil terdapat pada varietas Ateng. Faktor abiotik di agroforestri kopi  menunjukkan kelembaban tanah 18,3%, kelembaban udara 60-75%, pH tanah 7,5%, suhu tanah 21°C, Suhu udara 21-25°C dengan ketinggian 900-1100 mdpl. Faktor abiotik berpengaruh pada pertumbuhan tanaman, dan intensitas cahaya juga berpengaruh terhadap biomassa tan","PeriodicalId":346598,"journal":{"name":"Jurnal SAINS ALAMI (Known Nature)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129883446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gambaran Histopatologi Otak Pada Tikus Hipertensi (DOCA-Garam) yang Dipapar Ekstrak Metanolik Kombinasi Benalu Teh dan Benalu Mangga Model Preventif","authors":"Dyan Aprillia Susanti, Nour Athiroh Abdoes Sjakoer, Nurul Jadid Mubarokati","doi":"10.33474/j.sa.v5i1.15541","DOIUrl":"https://doi.org/10.33474/j.sa.v5i1.15541","url":null,"abstract":"Hypertension is an increase in blood pressure that exceeds normal limits. In patients with hypertension, systolic blood pressure is 140 mmHg and diastolic blood pressure is 90 mmHg and comes from a complex and interconnected environment. Hypertension is a non-communicable disease that can cause death in humans and is closely related to cardiovascular disease. Hypertension is considered the main cause of 9.4 million deaths that occur in the world's population every year. Disorders of blood vessels around the brain due to hypertension can cause death. The purpose of this study was to determine the effectiveness of the methanolic extract of the combination of Mango Mistletoe and Mistletoe Tea (EMKBTBM) given to rats with hypertension model on the histopathological features of the brain in hypertensive rats (DOCA-salt) preventive model. The method used in this study was the true experimental method and the RAL research design on 25 male wistar rats with 3 treatments (PI, PII, PIII), (K-) group without any treatment (without administration of DOCA Salt and EMKBTBM) and (K+) using DOCA-Salt induction without giving EMKBTBM, and 5 times replication. The EMKBTBM was given with a ratio of mango mistletoe: tea mistletoe which was 3:1 and then given at a dose of 50, 100, 200 mg/KgBB in the treatment of PI, PII, PIII. Data analysis was carried out by using ANOVA statistical test using the JAMOVI application. Based on the results of the study, it was shown that giving EMKBTBM to rats had the effect of reducing the amount of damage (necrosis) in the white matter area of the brain. The administration of EMBTBM at a dose of 50 mg/KgBW was the most optimum dose in reducing the amount of white matter cell necrosis in the male wistar rat brain.Keywords:3 Brain Necrosis, Hypertension, Mango Mistletoe, Tea MistletoeABSTRAKHipertensi merupakan bertambahnya tekanan darah melebihi batas normal. Pada penderita hipertensi, tekanan darah sistolik 140 mmHg dan tekanan darah diastolik  90 mmHg serta berasal dari lingkungan yang kompleks dan saling berhubungan. Hipertensi ialah penyakit tidak menular yang dapat mengakibatkan kematian pada manusia dan berkaitan erat dengan penyakit kardiovaskular. Hipertensi dianggap sebagai sebab utama 9,4 juta kematian yang terjadi pada penduduk dunia pada setiap tahunnya. Gangguan pembuluh darah disekitar otak akibat hipertensi dapat menebabkan kematian. Tujuan dari penelitian ini adalah untuk mengetahui efektivitas Ekstrak Metanolik Kombinasi Benalu Mangga dan Benalu Teh (EMKBTBM) yang diberikan pada tikus model hipertensi terhadap gambaran histopatologi otak pada tikus hipertensi (DOCA-garam) model preventif. Metode yang digunakan dalam penelitian ini menggunakan metode true eksperimental serta desain penelitian RAL pada 25 ekor tikus wistar jantan dengan 3 perlakuan (PI, PII, PIII), (K-) kelompok tanpa perlakuan apapun (tanpa pemberian DOCA Garam dan EMKBTBM) dan (K+) menggunakan induksi DOCA-Garam tanpa pemberian EMKBTBM, serta 5x ulang","PeriodicalId":346598,"journal":{"name":"Jurnal SAINS ALAMI (Known Nature)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126639635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Struktur Komunitas Plankton Tambak Polikultur Bandeng (Chanos chanos) dan Udang Vannamei (Litopenaeus vannamei) di Desa Tebaloan Kecamatan Duduksampeyan Kabupaten Gresik","authors":"Zumrotul Muaffah, Saimul Laili, Ratna Djuniwati Lisminingsih","doi":"10.33474/j.sa.v4i2.11894","DOIUrl":"https://doi.org/10.33474/j.sa.v4i2.11894","url":null,"abstract":"AbstractPlankton is an organism that has a very small size or micro-organisms that live floating in the waters. This study aims to compare the abundance, diversity, uniformity, dominance, importance of plankton and water quality in milkfish and shrimp polyculture ponds in the Tebaloan village, Duduksampeyan District, Gresik Regency. This research was conducted in Tebaloan Village, Duduksampean District and sampling was carried out at 08.00-10-00 WIB. The plankton sample method uses purposive sampling. The results showed the diversity of plankton consisting of 20 plankton with 16 phytoplankton and 4 zooplankton. At station I, the most common classes were Bacillariophyceae, Cyanophyceae and Chlophyceae. Meanwhile, at station II, the classes were mostly Cyanophyceae. In the community structure, the Diversity Index (H') value is 1.21-1.97 which is categorized as medium. The Uniformity Index (E) is 0.13-0.21 which is categorized as low. Meanwhile, the Dominance Index (C) is 0.39-0.52, at station I is categorized as high and at station II categorized as low. Parameters carried out during the study were temperature, water brightness, TDS, salinity, pH, DO, dissolved CO2 and nitrate. The results of water quality measurements in both polyculture ponds were categorized as medium or poor pond waters for cultivating milkfish and vannamei shrimp.Keywords: Plankton, Community Structure, Polyculture PondABSTRAKPlankton merupakan organisme yang memiliki ukuran yang sangat kecil atau bisa juga disebut jasad renik yang hidup melayang di perairan.Tujuan dari penelitian ini adalah untuk membandingkan kelimpahan, diversitas, keseragaman, dominansi, nilai penting plankton dan kualitas air pada tambak polikultur bandeng dan udang di Desa Tebaloan Kecamatan Duduksampeyan Kabupaten Gresik. Penelitian ini dilakukan di Desa Tebaloan Kecamatan Duduksampean dan pengambilan sampel dilakukan pada pukul 08.00-10-00 WIB. Metode sampel plankton menggunakan purposive sampling. Hasil penelitian menunjukkan keanekaraaman plankton yang terdiri dari 20 plankton dengan 16 fitoplankton dan 4 zooplankton. Pada stasiun I paling banyak ditemukan adalah kelas Bacillariophyceae, Cyanophyceae dan Chlophyceae. Sedangkan pada stasiun II ditemukan paling banyak adalah kelas Cyanophyceae. Pada struktur komunitas nilai Indeks Keanekaragaman (H’) 1.21-1.97 yang dikategorikan sedang. Nilai Indeks Keseragaman (E) 0.13-0.21 yang dikategorikan rendah. Sedangkan nilai Indeks Dominansi (C) 0.39-0.52, pada stasiun I dikategorikan tinggi dan pada stasiun II dikategorikan rendah. Parameter yang dilakukan saat penelitian adalah suhu, kecerahan air, TDS, salinitas, pH, DO, CO2 terlarut dan nitrat. Hasil pengukuran kualitas air pada kedua tambak polikultur dikategorikan sebagai perairan tambak sedang atau kurang baik untuk membudidayakan ikan bandeng dan udang vannamei.Kata kunci : Plankton, Struktur Komunitas, Tambak Polikultur","PeriodicalId":346598,"journal":{"name":"Jurnal SAINS ALAMI (Known Nature)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129510338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisis Kerusakan Jaringan Insang Ikan Mas (Cyprinus carpio L.) Setelah Terpapar Pestisida Klorpirifos","authors":"Viki Amaliyah, Hari Santoso, Ahmad Syauqi","doi":"10.33474/j.sa.v4i2.11255","DOIUrl":"https://doi.org/10.33474/j.sa.v4i2.11255","url":null,"abstract":"The use of chlorpyrifos pesticide as an agricultural pest exterminator if excessive and carried out continuously can have a large negative impact on biotic and abiotic life. Fish as one of the environmental bioindicators of pesticide contamination, because the gill organs will receive chemical effects in taking oxygen in pesticide-contaminated water ponds. The purpose of this study was to analyze the level of damage to the gill tissue of carp (Cyprinus carpio) exposed to the pesticide chlorpyrifos at various concentration levels. This research was carried out at the Punten Freshwater Cultivation Installation, Batu City, East Java. Using the experimental method with concentrations of acute toxicity treatment (LC50) namely K1 0.25 ppm, K2 0.30 ppm, K3 0.35 ppm, K4 0.40 ppm, K5 0.45 ppm. The research data were analyzed descriptively in the form of tables and graphs. The results of the preliminary acute toxicity test (LC50) were in the range of K1 0.25 ppm and K2 0.30 ppm. Furthermore, Alizarin Red staining was performed to give color to the gills. The results of acute toxicity test (LC50) Total percentage of damage at a concentration of 0.25 ppm 22.28% and a concentration of 0.30 ppm 77.54%. Damage to gill tissue exposed to the pesticide chlorpyrifos showed an acute level occurred at a concentration of 0.30ppm, where the higher the concentration, the higher the gill damage.Keywords: Chorphyrifos Pesticide, Cyprinus carpio,  Precentage of DamageABSTRAKPenggunaan pestisida klorpirifos sebagai pembasmi hama pertanian bila berlebihan dan dilakukan secara terus menerus dapat menimbulkan dampak negatif yang besar bagi kehidupan biotik dan abiotik. Ikan sebagai salah satu bioindikator lingkungan tercemar pestisida, karena organ insang akan menerima efek kimiawi dalam mengambil oksigen pada kolam perairan yang tercemar pestisida. Tujuan penelitian ini adalah untuk menganalisis tingkat kerusakan jaringan insang ikan mas (Cyprinus carpio) yang terpapar pestisida klorpirifos pada berbagai level konsentrasi. Penelitian ini dilaksanakan di Instalasi Budidaya Air Tawar Punten, Kota Batu, Jawa Timur. Menggunakan metode eksperimen dengankonsentrasi perlakuan toksisitas akut (LC50) yaitu K1 0,25 ppm, K2 0,30 ppm, K3 0,35 ppm, K4 0,40 ppm, K5 0,45 ppm. Data penelitian dianalisis secara deskriptif dalam bentuk Tabel dan Grafik. Hasil uji pendahuluan toksisitas akut (LC50) berada pada kisaran K1 0,25 ppm dan K2 0,30 ppm. Selanjutnya dilakukan pewarnaan Alizarin Red untuk memberi warna pada insang. Hasil uji toksisitas akut (LC50) Total presentase kerusakan pada konsentrasi 0,25 ppm 22,28% dan konsentrasi 0,30 ppm 77,54%. Kerusakan jaringan insang yang terpapar pestisida klorpirifos memperlihatkan tingkat akut terjadi pada perlakuan konsentrasi 0,30ppm, dimana semakin tinggi konsentrasi akan semakin tinggi kerusakan insang.Kata kunci : Pestisida Klorpirifos, Cyprinus carpio, Kerusakan Insang.","PeriodicalId":346598,"journal":{"name":"Jurnal SAINS ALAMI (Known Nature)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127023521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluasi Kualitas Air Perairan Tambak Udang Vannamei (Litopenaeus vannamei) dan Ikan Bandeng (Chanos chanos) di Kecamatan Duduk Sampeyan Kabupaten Gresik","authors":"Elok Muwafiqoh, Saimul Laili, Hamdani Dwi Prasetyo","doi":"10.33474/j.sa.v4i2.11871","DOIUrl":"https://doi.org/10.33474/j.sa.v4i2.11871","url":null,"abstract":"Pre-harvest fish mortality was often found in polyculture vannamei shrimp and milkfish in Duduksampeyan. This is thought to be caused by declining water quality. This study aims to evaluate water quality based on physico-chemical parameters and biotic index in vannamei shrimp (Litopenaeus vannamei) and milkfish (Chanos chanos) ponds. The study was carried out in February-March 2021 in Duduksampeyan using a purposive sampling method from 3 stations, vannamei shrimp ponds (station 1), milkfish ponds (station 2) and polyculture ponds (station 3) at 3 sampling points located at the inlet/outlet, middle and edge. Data analysis using ANOVA followed Tukey's test to compare data from the three stations. Correlation analysis, PCA and cluster to determine the relationship between environmental parameters and plankton. The physico-chemical parameter values were in accordance with SNI8037.1:2014 except for salinity, suspended solids at the three stations, brightness at station 3, dissolved solids at station 2. Station 1 found 8 classes with 17 genera, station 2 contained 8 classes with 11 genera and stations 3 there are 7 classes with 14 genera. The most common genera found at station 1 were Synechocystis, Spirulina, station 2 Synechocystis, Pandornia, Chaetoceros, station 3 Synechocystis, Pandornia, Spirulina. The diversity index value is between 1.7-3.1ind/L. Human activities such as settlements, livestock and agriculture are thought to be the cause of the decline in water quality from being eutrophic to hypereutrophic (TDI). The relationship between plankton and environmental parameters shows that at station 3 the optimum results are obtained to support the life of aquatic biota.Keywords: Physics-Chemistry, Diversity Index, Water Quality, PlanktonABSTRAKKematian ikan pra panen banyak dijumpai pada tambak budidaya polikultur udang vannamei dan ikan bandeng di Kecamatan Duduksampeyan. Hal ini diduga disebabkan oleh menurunnya kualitas air. Penelitian ini bertujuan untuk mengevaluasi kualitas air berdasarkan parameter fisika-kimia dan indeks biotik di tambak udang vannamei (Litopenaeus vannamei) dan ikan bandeng (Chanos chanos). Penelitian dilaksanakan pada Februari-Maret 2021 di Kecamatan Duduksampeyan menggunakan metode purposive sampling dari 3 stasiun yaitu tambak udang vannamei (stasiun 1), tambak ikan bandeng (stasiun 2) dan tambak polikultur (stasiun 3) di 3 titik sampling yang berada di inlet/outlet, tengah dan tepi. Analisis data menggunakan ANOVA dilanjutkan Uji Tukey untuk membandingkan data dari ketiga stasiun. Selanjutnya dianalisis korelasi, PCA dan cluster untuk mengetahui hubungan antara parameter lingkungan dengan plankton. Nilai parameter fisika-kimia telah sesuai SNI 8037.1:2014 terkecuali salinitas, padatan tersuspensi di ketiga stasiun, kecerahan pada stasiun 3 dan padatan terlarut pada stasiun 2. Stasiun 1 ditemukan 8 kelas dengan 17 genus, stasiun 2 terdapat 8 kelas dengan 11 genus dan stasiun 3 terdapat 7 kelas dengan 14 genus. Genus ","PeriodicalId":346598,"journal":{"name":"Jurnal SAINS ALAMI (Known Nature)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133037414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisis Struktur Komunitas Fitoplankton pada Perairan Tambak Udang Vannamei (Litopenaeus vannamei) di Kecamatan Manyar, Kabupaten Gresik.","authors":"Ilvi Iftitahur Rahmah, Saimul Laili, Ratna Djuniwati Lisminingsih","doi":"10.33474/j.sa.v4i2.11882","DOIUrl":"https://doi.org/10.33474/j.sa.v4i2.11882","url":null,"abstract":"Phytoplankton is microscopic organisms that has a role primary producer and  bioindicator of a waters. This study aims to analyze the differences in the phytoplankton community in ponds near and far from settlements as well as to find the condition of the waters. Stations by purposive sampling at 2 stations. The research was conducted in February 2021 in Tanggulrejo Village, Manyar District, Gresik Regency. Phytoplankton samples were analyzed using diversity index (H'), uniformity index (E), dominance index (C), and important value index (INP). The water quality parameters measured were temperature, air brightness, TDS, salinity, DO, dissolved CO2, pH, and nitrate. Statistical test analysis is t test and PCA. The results highest phytoplankton community structure in ponds near settlements, namely, Bacillariophyceae and there were 17 genera, while those far from settlements highest was Cyanophyceae and there were 11 genera. The diversity index value (H') of ponds near medium to settlements is 2.48 while ponds far from settlements is 1.8 which describes the category of phytoplankton community. The Uniformity Index (E) value ponds near settlements is 0, 242, while ponds far from settlements is 0,242 which describes the uneven distribution of phytoplankton. The value of the Dominance Index (C) which is close to the settlement is 0.274, while pond far from the settlement is 0.476, which indicates there is no dominance of a particular genus. The results of water quality parameters indicate that the condition of the shrimp pond waters is polluted because it exceeds the SNI threshold for aquaculture.Keywords: Community Structure, Phytoplankton, Shrimp PondABSTRAKFitoplankton merupakan salah satu oragnisme mikroskopis yang mempunyai peran sebagai produsen primer dan dapat dijadikan sebagai bioindikator suatu perairan, salah satunya tambak. Penelitian ini bertujuan untuk menganalisis perbedaan struktur komunitas fitoplankton pada tambak yang dekat dan jauh dengan pemukiman sekaligus mengevaluasi kondisi perairannya. Penentuan stasiun secara purposive sampling yaitu pengambilan sampel secara random di 2 stasiun, masing-masing stasiun tiga titik. Penelitian dilakukan pada Februari 2021 di Desa Tanggulrejo Kecematan Manyar, Kabupaten Gresik. Sampel fitoplankton dianalisis  menggunakan indeks keanekargaman (H’), indeks keseragaman (E), indeks dominasi (C), dan indeks nilai penting (INP). Parameter kualitas air yang diukur yaitu suhu, kecerahan air, TDS, salinitas, DO, CO2 terlarut, pH, dan nitrat. Analisis uji statistik yang digunakan adalah uji t dan PCA. Hasil penelitian menujukkan struktur komunitas fitoplankton tertinggi pada tambak yang dekat pemukiman yaitu, Bacillariophyceae dan ada 17 genus, sedangkan yang jauh dari pemukiman yang tertinggi adalah Cyanophyceae dan ada 11 genus. Nilai Indeks keanekaragaman (H’) tambak dekat dengan pemukiman adalah 2,48, sedangkan tambak jauh dari pemukiman adalah 1,8 yang menggambarkan komunitas fitoplankton kategori sed","PeriodicalId":346598,"journal":{"name":"Jurnal SAINS ALAMI (Known Nature)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121401398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pemetaan Potensi Ekowisata di Wilayah Kecamatan Poncokusumo, Kabupaten Malang","authors":"Baihaqi Musytawan, L. Hakim, Hasan Zayadi","doi":"10.33474/j.sa.v4i2.12389","DOIUrl":"https://doi.org/10.33474/j.sa.v4i2.12389","url":null,"abstract":"Ecotourism according to The International Ecotourism Society (TIES), is a responsible journey into natural areas that preserves the environment, maintains the welfare of local communities, and involves interpretation and education that includes management staff and visiting guests. This research is located in Poncokusumo District, Malang Regency. The data collection method uses field observation techniques assisted by GPS to determine the coordinates of the points. The interview method was used to find out more detailed information about the suitability of ecotourism. The data obtained were processed using spatial analysis techniques using the QGIS 10.3 application. The results of the spatial analysis obtained 9 ecotourism locations spread over 4 villages namely Wringinanom, Gubugklakah, Poncokusumo and Ngadas. The next stage is to find out the suitability of tourism activities in the context of ecotourism with field observations and interviews aimed at tourism managers. The data obtained that ecotourism in Poncokusumo District has not all applied the 3 principles of ecotourism according to the 2015 TIES Definition, especially on the principle of interpretation in River Tubing Ledok Amprong, Coban Bidadari and Gunungsari Sunset.Keywords: Ecotourism, Mapping, Poncokusumo, Suitability.ABSTRAKEkowisata menurut The International Ecotourism Society (TIES), sebuah perjalanan yang bertanggung jawab ke dalam daerah atau area alami (natural areas) yang melestarikan lingkungan, mempertahankan kesejahteraan masyarakat setempat, serta melibatkan interpretasi dan pendidikan yang mencakup staff pengelola dan tamu yang berkunjung. Penelitian ini bertempat di Kecamatan Poncokusumo Kabupaten Malang. Metode pengambilan data menggunakan teknik observasi lapangan yang dibantu dengan GPS untuk menentukan titik koordinat. Metode wawancara digunakan untuk mengetahui informasi lebih detail tentang kesesuaian ekowisata. Data yang diperoleh diolah menggunakan teknik analisis spasial menggunakan aplikasi QGIS 10.3. Hasil analisis spasial diperoleh 9 lokasi ekowisata yang tersebar pada 4 desa yaitu Wringinanom, Gubugklakah, Poncokusumo dan Ngadas. Tahapan selanjutnya yaitu mengetahui kesesuaian kegiatan wisata dalam konteks ekowisata dengan teknik observasi lapang dan wawancara yang ditujukan kepada pengelola wisata. Data yang diperoleh bahwa ekowisata di Kecamatan Poncokusumo belum semua menerapkan 3 prinsip ekowisata menurut Definisi TIES 2015 terutama pada prinsip interpretasi pada ekowista River Tubing Ledok Amprong, Coban Bidadari dan Gunungsari Sunset.Kata kunci : Ekowisata, Kesesuaian, Pemetaan, Poncokusumo.","PeriodicalId":346598,"journal":{"name":"Jurnal SAINS ALAMI (Known Nature)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132064226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluasi Kualitas Air Perairan Tambak Air Payau Udang Vannamei (Litopenaeus vannamei), Ikan Bandeng (Chanos chanos) dan Ikan Kerapu (Ephinephelus sp.) di Desa Campurejo Kabupaten Gresik","authors":"Irma Syahlizawati, Saimul Laili, Hamdani Dwi Prasetyo","doi":"10.33474/j.sa.v4i2.11870","DOIUrl":"https://doi.org/10.33474/j.sa.v4i2.11870","url":null,"abstract":"Activities in pond management cause many problems, such as pests and diseases that cause pre-harvest death. This study aims to evaluate water quality based on physicochemical parameters and biological index in vannamei shrimp, milkfish and grouper ponds. This research was conducted in Campurejo Village, Gresik in February-March 2021 using a purposive sampling method from 3 stations, namely station 1 for shrimp ponds, station 2 for milkfish ponds and station 3 for grouper ponds with 3 points, namely inlet, outlet and center. The data obtained were analyzed by ANOVA test to analyze or compare data from more than two independent groups and continued with the Tukey test to determine which treatment groups had the same or different effects on each other, then the Parcipal Component Analysis test and cluster test to determine the clustering based on the level of similarity of plankton species using Paleonthological Statistics Version 4.05 software. Measurement of physico-chemical parameters of water quality based on SNI 8037.1:2014 except for brightness parameters at station 1, Dissolved Solids and Salinity at all three stations. Observation and identification of plankton at station 1 found 7 classes with a total of 16 genera, at station 2 found 8 classes with a total of 16 genera and at station 3 found 8 classes with a total of 14 genera. The diversity index ranges from 2.1-2.6 ind/L which is categorized as medium species diversity. The most common genera were Pandornia, Coelastrum and Synechocystis. The Trophic Diatom Index at all stations was categorized as eutrophic.Keywords: Physics-Chemistry, Diversity Index, Water Quality, PlanktonABSTRAKAktivitas dalam pengelolaan tambak saat ini banyak menimbulkan permasalahan, seperti serangan hama dan penyakit yang menyebabkan kematian pra panen. Penelitian ini bertujuan untuk mengevaluasi kualitas perairan berdasarkan parameter fisika kimia dan indeks biologi ditambak udang vannamei, ikan bandeng dan ikan kerapu. Penelitian ini dilaksanakan di Desa Campurejo Kabupaten Gresik pada bulan Februari-Maret 2021 menggunakan metode purposive sampling dari 3 stasiun yaitu stasiun 1 tambak udang, stasiun 2 tambak bandeng dan stasiun 3 tambak kerapu dengan 3 titik yaitu inlet, outlet dan tengah. Data yang diperoleh dianalisis dengan uji ANOVA untuk menganalisis atau membandingkan data lebih dari dua kelompok independent dan dilanjut uji tukey untuk mengetahui kelompok perlakuan yang memiliki pengaruh sama atau berbeda antara satu dengan yang lain, selanjutnya uji Parcipal Component Analysis dan uji cluster untuk mengetahui klasterisasi berdasarkan tingkat kesamaan jenis plankton dengan menggunakan software Paleonthological Statistic Versi 4.05. Pengukuran parameter fisika-kimia kualitas perairan berdasarkan SNI 8037.1:2014 kecuali parameter kecerahan pada stasiun 1, Padatan Terlarut dan Salinitas pada ketiga stasiun. Pengamatan dan identifikasi plankton pada stasiun 1 ditemukan 7 kelas dengan total 16 genus, pada stas","PeriodicalId":346598,"journal":{"name":"Jurnal SAINS ALAMI (Known Nature)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122211522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisis Konsentrasi Pestisida Klorpirifos pada Letal Ikan Mas (Cyprinus carpio)","authors":"Ririn Alfiatu Rohimah, Hari Santosa, Ahmad Syauqi","doi":"10.33474/j.sa.v4i2.11954","DOIUrl":"https://doi.org/10.33474/j.sa.v4i2.11954","url":null,"abstract":"ABSTRACTChlorpyrifos is classified as an organophosphate type pesticide, in its use it is often applied to agricultural activities. The uncontrolled use of pesticides has an impact on environmental pollution, especially aquatic biota such as fish. The purpose of this study was to analyze the acute concentration of the pesticide chlorpyrifos on Goldfish (Cyprinus carpio). The organism that is used as the object of this experiment is the goldfish (Cyprinus carpio) because it is considered that this type of fish has characteristics that are sensitive to all environmental change activities in the aquatic ecosystem and have fulfilled the requirements as one of the bioindicators of waters to changes in the surrounding environment. The research method is experiment with preliminary research, acute toxicity test (LC50), real test (sub lethal). The concentration of treatment in experimental animals included sublethal test K0 (control) 0 ppm, K1 0.25 ppm, K2 0.30 ppm, K3 0.35 ppm, K4 0.40 ppm, K5 0.45 ppm. The upper lethal threshold value was 0.5 ppm and the lower lethal threshold was 0.25 ppm based on the results of the preliminary test. Acute toxicity test ranges from K1 0.25 ppm to K5 0.45 ppm. The results of the acute toxicity test (LC50) at K1 0.25 ppm. There is a relationship between increased mortality of test animals with increasing concentrations of pesticides in the research media. An increase in the concentration of chlorpyrifos pesticide in the media of goldfish test animals has a very strong correlation with the number of operculum movements (opening and closing). The greater the concentration of chlorpyrifos pesticide, the faster the goldfish will experience a decrease in operculum movement.Keywords:Goldfish (Cyprinus carpio), Chlorpyrifos pesticideABSTRAK Klorpirifos digolongkan pada pestisida jenis orghanoposfat, dalam penggunaannya sering diaplikasikan pada kegiatan pertanian. Penggunaan pestisida yang kurang terkontrol berdampak terhadap pencemaran lingkungan, khususnya biota perairan seperti ikan. Tujuan daripada dilaksanakannya penelitian ini adalah melakukan analisis terhadap konsentrasi akut pestisida klorpirifos terhadap Ikan Mas (Cyprinus carpio). Organisme yang dijadikan sebagai objek dari eksperimen ini adalah ikan mas (Cyprinus carpio) karena dinilai ikan jenis ini memiliki karakteristik yang sensitif terhadap segala aktivitas perubahan lingkungan dalam ekosistem akuatik dan telah memenuhi persyaratan sebagai salah satu bioindikator perairan terhadap perubahan lingkungan sekitarnya. Metode penelitian adalah eksperimen dengan penelitian pendahuluan, uji toksisitas akut (LC50), uji sesungguhnya (sub letal). Konsentrasi perlakuan pada hewan coba meliputi uji subletal K0 (kontrol) 0 ppm, K1 0,25 ppm, K2 0,30 ppm, K3 0,35 ppm, K4 0,40 ppm, K5 0,45 ppm. Diperoleh nilai ambang letal atas sebesar 0,5 ppm dan letal bawah sebesar 0,25 ppm berdasarkan hasil uji pendahuluan. Uji toksisitas akut kisaran K1 0,25 ppm sampai dengan K5 0,45 ppm. ","PeriodicalId":346598,"journal":{"name":"Jurnal SAINS ALAMI (Known Nature)","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129124921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}