Pub Date : 2023-02-01DOI: 10.14710/jkt.v26i1.16467
Mohammad Agung Nugraha, Irma Akhrianti, F. Pratiwi, Agung Priyambada
The Baturusa estuary receives inputs of organic and inorganic materials from several human activities along the river. The characteristics of heavy metals such as toxicity, resistance to decomposition, and ability to accumulate in aquatic biota can indirectly have a negative impact on the health of humans who consume marine biota. The research was conducted with the aim of studying the geochemical characteristics and assessing the level of heavy metal contamination of Cd, Cu and Zn in the sediments of the Baturusa Estuary. Heavy metal fractionation was analyzed by sequential extraction. The CF value of Cu and Zn metals shows a low level of contamination, while Cd shows a moderate level of contamination. I-Geo metal Cd is in the unpolluted to moderately polluted status, while Cu and Zn are not polluted. The PLI value indicates the unpolluted category. Geochemical fractionation of heavy metals Cd, Cu and Zn Baturusa Estuary is characterized by the presence of exchangeable, carbonate, reducible, oxidizable and residual fractions. Cu and Zn mainly tend to be stored/bound to the residual fraction (mainly derived from natural sources) while Cd is more bound to the non-residual fraction (mainly derived from human/anthropogenic activities). The risk evaluation of Cd metal is very high to high risk/hazard, while Cu and Zn are not at risk/hazardous to low. These conditions indicate that Cd metal may be harmful to the environment and has a higher mobility than other metals so that it has a higher risk of being available in the body of biota. Estuari Baturusa menerima masukan bahan organik dan anorganik dari beberapa aktivitas manusia disepanjang sungai. Karakteristik logam berat seperti toksisitas, resisten terhadap dekomposisi, dan kemampuan akumulasi terhadap biota akuatik serta secara tidak langsung dapat berdampak negatif terhadap kesehatan manusia yang mengkonsumsi biota laut. Penelitian dilakukan dengan tujuan untuk mengkaji karakteristik geokimia dan menilai tingkat kontaminasi logam berat Cd, Cu, dan Zn pada sedimen Estuari Baturusa, Bangka. Fraksinasi logam berat dianalisis dengan ekstraksi bertahap. Nilai CF logam Cu dan Zn menunjukkan tingkat kontaminasi rendah (CF<1), sedangkan Cd menunjukkan tingkat kontaminasi sedang (1≤CF<3). I-Geo logam Cd berada pada status tidak tercemar hingga tercemar sedang (0
{"title":"Geokimia dan Asesmen Pencemaran Logam Berat Cd, Cu dan Zn pada Sedimen Permukaan Estuari Baturusa, Bangka","authors":"Mohammad Agung Nugraha, Irma Akhrianti, F. Pratiwi, Agung Priyambada","doi":"10.14710/jkt.v26i1.16467","DOIUrl":"https://doi.org/10.14710/jkt.v26i1.16467","url":null,"abstract":" The Baturusa estuary receives inputs of organic and inorganic materials from several human activities along the river. The characteristics of heavy metals such as toxicity, resistance to decomposition, and ability to accumulate in aquatic biota can indirectly have a negative impact on the health of humans who consume marine biota. The research was conducted with the aim of studying the geochemical characteristics and assessing the level of heavy metal contamination of Cd, Cu and Zn in the sediments of the Baturusa Estuary. Heavy metal fractionation was analyzed by sequential extraction. The CF value of Cu and Zn metals shows a low level of contamination, while Cd shows a moderate level of contamination. I-Geo metal Cd is in the unpolluted to moderately polluted status, while Cu and Zn are not polluted. The PLI value indicates the unpolluted category. Geochemical fractionation of heavy metals Cd, Cu and Zn Baturusa Estuary is characterized by the presence of exchangeable, carbonate, reducible, oxidizable and residual fractions. Cu and Zn mainly tend to be stored/bound to the residual fraction (mainly derived from natural sources) while Cd is more bound to the non-residual fraction (mainly derived from human/anthropogenic activities). The risk evaluation of Cd metal is very high to high risk/hazard, while Cu and Zn are not at risk/hazardous to low. These conditions indicate that Cd metal may be harmful to the environment and has a higher mobility than other metals so that it has a higher risk of being available in the body of biota. Estuari Baturusa menerima masukan bahan organik dan anorganik dari beberapa aktivitas manusia disepanjang sungai. Karakteristik logam berat seperti toksisitas, resisten terhadap dekomposisi, dan kemampuan akumulasi terhadap biota akuatik serta secara tidak langsung dapat berdampak negatif terhadap kesehatan manusia yang mengkonsumsi biota laut. Penelitian dilakukan dengan tujuan untuk mengkaji karakteristik geokimia dan menilai tingkat kontaminasi logam berat Cd, Cu, dan Zn pada sedimen Estuari Baturusa, Bangka. Fraksinasi logam berat dianalisis dengan ekstraksi bertahap. Nilai CF logam Cu dan Zn menunjukkan tingkat kontaminasi rendah (CF<1), sedangkan Cd menunjukkan tingkat kontaminasi sedang (1≤CF<3). I-Geo logam Cd berada pada status tidak tercemar hingga tercemar sedang (0<Igeo<1), sedangkan Cu dan Zn memiliki status tidak tercemar (Igeo 0). Nilai PLI menunjukkan kategori tidak tercemar (PLI<1). Fraksinasi geokimia logam berat Cd, Cu dan Zn Estuari Baturusa dicirikan dengan adanya fraksi exchangeable, karbonat, reducible, fraksi oxidizable, dan residual. Logam Cu dan Zn utamanya cenderung tersimpan/ terikat pada fraksi residual (utamanya berasal dari sumber alami) sedangkan Cd lebih terikat pada fraksi non residual atau non resisten (utamanya berasal dari aktivitas manusia/ antropogenik). Evaluasi resiko dari logam Cd yaitu resiko/ bahaya sangat tinggi hingga tinggi, sedangkan Cu dan Zn tidak beresiko/ berbahaya h","PeriodicalId":53001,"journal":{"name":"Jurnal Kelautan Tropis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49623938","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}
Pub Date : 2023-01-10DOI: 10.14710/jkt.v26i1.16159
F. Ramdhani, S. Heltria, Ester Restiana Endang Gelis, N. Nofrizal, R. Jhonnerie, I. Zidni
Mantis Shrimp is one of economically important species due to its high value for export commodities. Mantis shrimp fishing in Kuala Tungkal is categorized as small-scale fisheries. This study aims to investigate the spatial distribution of mantis shrimp catches, both the number (individuals) and body length (BL) (cm) based on the distance from the shoreline to the fishing ground. A survey method was conducted in Kuala Tungkal, Tanjung Jabung Barat Regency, Jambi Province in December 2018. The observation covered 23 fishing trips by gillnet within 437 km2. The results revealed that the spatial distribution of the average number (individuals) of mantis shrimp in various stratifications reached 28-31 individuals. However, the farther fishing ground with higher salinity levels obtained a larger average size of mantis shrimp body length (BL). In the 0-4 mile stratification, it was found that the average catch size is 17.3 cm under the first maturity size which should be 19 cm. Meanwhile, in average the observed water condition as follow temperature is 28.2oC, DO = 7.4 mg/L, pH = 7, brightness = 1.1 m, and salinity is 20.9 ppt. At the end, the result of this spatial distribution may become an input for coastal resource management strategies and can support sustainable mantis shrimp fishing efforts.
螳螂虾具有较高的出口商品价值，是我国重要的经济品种之一。在吉隆坡东加尔的螳螂虾捕捞被归类为小规模渔业。本研究的目的是根据海岸线到渔场的距离，调查螳螂虾的捕捞量的空间分布，包括数量(个体)和体长(BL) (cm)。2018年12月在占比省Tanjung Jabung Barat Regency的Kuala tunkal进行了一项调查方法。这次观察包括437平方公里范围内用刺网进行的23次捕鱼。结果表明:不同层位的螳螂虾平均数量(个体)的空间分布为28 ~ 31只;然而，越远、盐度越高的渔场，螳螂虾的平均体长(BL)越大。在0-4哩层析中，发现在第一次成熟尺寸应为19 cm的情况下，平均捕获尺寸为17.3 cm。同时，观测到的平均水温为28.2oC, DO = 7.4 mg/L, pH = 7，亮度= 1.1 m，盐度为20.9 ppt。最后，这种空间分布的结果可能成为沿海资源管理战略的投入，并可以支持可持续的螳螂虾捕捞工作。
{"title":"Spatial Distribution of Mantis Shrimp (Harpiosquilla raphidea) in Small-Scale Gillnet Fishery: A Case Study in Kuala Tungkal, Tanjung Jabung Barat Regency, Jambi","authors":"F. Ramdhani, S. Heltria, Ester Restiana Endang Gelis, N. Nofrizal, R. Jhonnerie, I. Zidni","doi":"10.14710/jkt.v26i1.16159","DOIUrl":"https://doi.org/10.14710/jkt.v26i1.16159","url":null,"abstract":"Mantis Shrimp is one of economically important species due to its high value for export commodities. Mantis shrimp fishing in Kuala Tungkal is categorized as small-scale fisheries. This study aims to investigate the spatial distribution of mantis shrimp catches, both the number (individuals) and body length (BL) (cm) based on the distance from the shoreline to the fishing ground. A survey method was conducted in Kuala Tungkal, Tanjung Jabung Barat Regency, Jambi Province in December 2018. The observation covered 23 fishing trips by gillnet within 437 km2. The results revealed that the spatial distribution of the average number (individuals) of mantis shrimp in various stratifications reached 28-31 individuals. However, the farther fishing ground with higher salinity levels obtained a larger average size of mantis shrimp body length (BL). In the 0-4 mile stratification, it was found that the average catch size is 17.3 cm under the first maturity size which should be 19 cm. Meanwhile, in average the observed water condition as follow temperature is 28.2oC, DO = 7.4 mg/L, pH = 7, brightness = 1.1 m, and salinity is 20.9 ppt. At the end, the result of this spatial distribution may become an input for coastal resource management strategies and can support sustainable mantis shrimp fishing efforts.","PeriodicalId":53001,"journal":{"name":"Jurnal Kelautan Tropis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46332905","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}
Pub Date : 2023-01-10DOI: 10.14710/jkt.v26i1.15758
Rianti Pratiwi, W. Kurniawan, Ayuningtyas Indrawati, P. S. Ibrahim, Muhammad Hafizt
Penaeidae is a family of shrimp that has a high economic value, leading to intensive exploitation in many areas. This research was conducted to ascertain the composition, distribution, and fisheries biology of Penaeid shrimps in the strong wavy water of southern Java Island, Indonesia. The research locations were the water of Eastern, Central, and Western Java. Shrimp samples were obtained using various ways. The carapace length (CL) of the shrimps were measured using plastic callipers and recorded to the nearest 1 mm. The results showed that eight species of shrimps were caught in the water of southern Java, with Penaeus merguiensis, P. semisulcatus, and P. monodon being the most common. The species P. merguiensis was found in each sampling location, while P. latisulcatus and Metapenaeus palmensis were only present at Drini Beach (Central Java). The results also showed that P. japonicus and M. lysianassa were only found at Ranca Buaya Beach (West Java). The species P. merguiensis and P. monodon were the two most commercially important species. The distributions of the shrimps were related to the water physical characteristics associated with the shrimp habitat namely SST, bathymetry, and tides. Fishery biology analysis found that the length at first impregnation of P. merguiensis at Damas and Sidem Water (East Java) was 25.9 cm CL. Furthermore, the LBSPR analyses revealed that the spawning capacity of P. merguiensis and M. ensis in the same waters were still very high under the current level of exploitation. Therefore, the magnitude of fishing has not endangered the sustainability of the two shrimps.
对虾科是一个具有较高经济价值的虾科，导致许多地区的集约开发。本研究旨在确定印尼爪哇岛南部强波浪水中对虾的组成、分布和渔业生物学。研究地点是爪哇岛东部、中部和西部的水域。使用各种方法获得虾样品。用塑料卡尺测量了虾的甲壳长度（CL），并记录到最接近的1mm。结果表明，在爪哇南部水域捕获了8种虾，其中以斑节对虾、半溃疡对虾和斑节对虾最常见。在每个采样地点都发现了P.merguiensis，而P.latisulculatus和Metapenaeus palmensis只出现在Drini海滩（中爪哇）。结果还表明，只有在西爪哇岛的Ranca Buaya海滩才发现日本血吸虫和赖氨藻。merguiensis和monodon是商业上最重要的两个物种。虾的分布与虾栖息地的水物理特征有关，即SST、水深和潮汐。渔业生物学分析发现，在Damas and Sidem Water（东爪哇），P.merguiensis首次产卵的长度为25.9 cm CL。此外，LBSPR分析表明，在目前的开发水平下，P.mergui和M.ensis在同一水域的产卵能力仍然很高。因此，捕捞的规模并没有危及这两只虾的可持续性。
{"title":"Composition, Distribution, and Fisheries Biology of Penaeid Shrimp from the Strong Wavy Waters of Southern Java, Indonesia","authors":"Rianti Pratiwi, W. Kurniawan, Ayuningtyas Indrawati, P. S. Ibrahim, Muhammad Hafizt","doi":"10.14710/jkt.v26i1.15758","DOIUrl":"https://doi.org/10.14710/jkt.v26i1.15758","url":null,"abstract":"Penaeidae is a family of shrimp that has a high economic value, leading to intensive exploitation in many areas. This research was conducted to ascertain the composition, distribution, and fisheries biology of Penaeid shrimps in the strong wavy water of southern Java Island, Indonesia. The research locations were the water of Eastern, Central, and Western Java. Shrimp samples were obtained using various ways. The carapace length (CL) of the shrimps were measured using plastic callipers and recorded to the nearest 1 mm. The results showed that eight species of shrimps were caught in the water of southern Java, with Penaeus merguiensis, P. semisulcatus, and P. monodon being the most common. The species P. merguiensis was found in each sampling location, while P. latisulcatus and Metapenaeus palmensis were only present at Drini Beach (Central Java). The results also showed that P. japonicus and M. lysianassa were only found at Ranca Buaya Beach (West Java). The species P. merguiensis and P. monodon were the two most commercially important species. The distributions of the shrimps were related to the water physical characteristics associated with the shrimp habitat namely SST, bathymetry, and tides. Fishery biology analysis found that the length at first impregnation of P. merguiensis at Damas and Sidem Water (East Java) was 25.9 cm CL. Furthermore, the LBSPR analyses revealed that the spawning capacity of P. merguiensis and M. ensis in the same waters were still very high under the current level of exploitation. Therefore, the magnitude of fishing has not endangered the sustainability of the two shrimps. ","PeriodicalId":53001,"journal":{"name":"Jurnal Kelautan Tropis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45269179","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}
Pub Date : 2023-01-10DOI: 10.14710/jkt.v26i1.15934
Dimas Dharmawan, N. A. Putriana, S. Anggraeni
Seaweed or macroalgae is one of the natural products with biological activities such as antioxidant, antibacterial, and immunostimulant. One of them is the brown alga Sargassum sp. This brown alga produces secondary metabolites such as flavonoids and their derivatives as well as polyphenols. These compounds have many roles in counteracting ultraviolet radiation and have the potential to be developed as active ingredients of sunscreen. This study aimed to determine the total phenolic content and the Sun Protection Factor (SPF) value of Sargassum sp. originating from Pameungpeuk beach, Garut Regency. The SPF value is used to categorize how efficiently a material prevents exposure to ultraviolet radiation. Total phenolic content was measured using Follin Ciocalteu reagent with gallic acid standard. The Sargassum sp extract sample contained total phenolic of 149,04±5,14 mg GAE/g. The SPF value of Sargassum sp extract was calculated using the Mansur equation at a wavelength of 290-320 nm. The obtained SPF value of extract was 33,2±3,11 which equals to oxybenzone. The value indicated an ultra-protection capability and the potency of extract for further development as UV filter. Rumput laut atau makroalga merupakan salah satu bahan alam dengan aktivitas biologis seperti antioksidan, aktivitas antibakteri dan imunostimulan. Salah satunya adalah alga cokelat jenis Sargassum sp. Alga cokelat ini menghasilkan metabolit sekunder seperti flavanoid dan turunannya serta polifenol dan turunannya. Senyawa-senyawa tersebut banyak berperan dalam menangkal radiasi ultraviolet dan berpotensi dikembangkan sebagai bahan aktif tabir surya. Penelitian ini bertujuan untuk mengetahui kandungan total fenolik dan nilai Sun Protection Factor (SPF) dari Sargassum sp yang berasal dari pantai Pameungpeuk, Kabupaten Garut. Kandungan total fenolik diukur dengan menggunakan reagen Follin Ciocalteu dan menggunakan standar baku asam galat. Sampel ekstrak Sargassum sp mengandung total fenolik sebesar 149,04±5,14 mg GAE/g. Nilai SPF digunakan untuk mengkategorikan seberapa efisien sebuah bahan dalam menangkal paparan radiasi sinar ultraviolet. Nilai SPF ekstrak Sargassum sp dihitung menggunakan menggunakan persamaan Mansur pada panjang gelombang 290-320 nm. Nilai SPF yang didapatkan yaitu 33,2±3,11 yang tergolong ke dalam kategori ultra.
{"title":"Kandungan Total Fenolik dan Nilai Sun Protection Factor Ekstrak Sargassum sp.","authors":"Dimas Dharmawan, N. A. Putriana, S. Anggraeni","doi":"10.14710/jkt.v26i1.15934","DOIUrl":"https://doi.org/10.14710/jkt.v26i1.15934","url":null,"abstract":"Seaweed or macroalgae is one of the natural products with biological activities such as antioxidant, antibacterial, and immunostimulant. One of them is the brown alga Sargassum sp. This brown alga produces secondary metabolites such as flavonoids and their derivatives as well as polyphenols. These compounds have many roles in counteracting ultraviolet radiation and have the potential to be developed as active ingredients of sunscreen. This study aimed to determine the total phenolic content and the Sun Protection Factor (SPF) value of Sargassum sp. originating from Pameungpeuk beach, Garut Regency. The SPF value is used to categorize how efficiently a material prevents exposure to ultraviolet radiation. Total phenolic content was measured using Follin Ciocalteu reagent with gallic acid standard. The Sargassum sp extract sample contained total phenolic of 149,04±5,14 mg GAE/g. The SPF value of Sargassum sp extract was calculated using the Mansur equation at a wavelength of 290-320 nm. The obtained SPF value of extract was 33,2±3,11 which equals to oxybenzone. The value indicated an ultra-protection capability and the potency of extract for further development as UV filter. Rumput laut atau makroalga merupakan salah satu bahan alam dengan aktivitas biologis seperti antioksidan, aktivitas antibakteri dan imunostimulan. Salah satunya adalah alga cokelat jenis Sargassum sp. Alga cokelat ini menghasilkan metabolit sekunder seperti flavanoid dan turunannya serta polifenol dan turunannya. Senyawa-senyawa tersebut banyak berperan dalam menangkal radiasi ultraviolet dan berpotensi dikembangkan sebagai bahan aktif tabir surya. Penelitian ini bertujuan untuk mengetahui kandungan total fenolik dan nilai Sun Protection Factor (SPF) dari Sargassum sp yang berasal dari pantai Pameungpeuk, Kabupaten Garut. Kandungan total fenolik diukur dengan menggunakan reagen Follin Ciocalteu dan menggunakan standar baku asam galat. Sampel ekstrak Sargassum sp mengandung total fenolik sebesar 149,04±5,14 mg GAE/g. Nilai SPF digunakan untuk mengkategorikan seberapa efisien sebuah bahan dalam menangkal paparan radiasi sinar ultraviolet. Nilai SPF ekstrak Sargassum sp dihitung menggunakan menggunakan persamaan Mansur pada panjang gelombang 290-320 nm. Nilai SPF yang didapatkan yaitu 33,2±3,11 yang tergolong ke dalam kategori ultra.","PeriodicalId":53001,"journal":{"name":"Jurnal Kelautan Tropis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42849651","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}
Pub Date : 2023-01-10DOI: 10.14710/jkt.v26i3.15064
Widianingsih Widianingsih, Retno Hartati, Hadi Endrawati
Information on the environmental characteristics of many sea cucumber habitat is limited, despite these species exhibiting rapid exploitation and may lead to depletion. The present study combined a survey on many seawaters and sediment characteristics of habitat valuable aspidochirote holothurian, Sea Ball Cucumber, Phyllophorus sp. to compare with location with no sea cucumber in Madura Strait, Indonesia. Data from detailed surveys were used to compare both locations with measures of physical and chemical seawater parameters including temperature, salinity, dissolved oxygen, pH, phosphate, nitrate, ammonia, chlorophyll-a, total suspended solids, light transparency, and depth of water. The comparison was also carried out on physical and chemical parameters of surface sediment, i.e. phosphate, nitrate, ammonia, chlorophyll-a, grain size, total organic matter, and carbon-organic content. The data then were analyzed using Mann-Whitney U-Non Parametric Test with SPSS v. 16. The result revealed that there were significant differences between sediment characteristics of Sea Ball Cucumber habitat and no Sea Ball cucumber location, but not for seawater. Seawater parameter value in Madura Strait showed in the range required for its life. This analyzes proved the importance of sediment characteristics for Phyllophorus sp. As benthic deposit feeders, they did not only utilize substrate underneath the body for its habitat but also primarily to supply their natural food.
许多海参生境的环境特征资料是有限的，尽管这些物种表现出迅速的开发和可能导致枯竭。本研究结合对印尼马杜拉海峡有价值的海参、海球参、Phyllophorus sp.等生境的多种海水和沉积物特征的调查，与没有海参的海域进行了比较。来自详细调查的数据用于比较两个地点的物理和化学海水参数，包括温度、盐度、溶解氧、pH、磷酸盐、硝酸盐、氨、叶绿素-a、总悬浮固体、光透明度和水的深度。对表层沉积物的磷酸盐、硝酸盐、氨、叶绿素-a、粒度、总有机质、碳有机含量等理化参数进行了比较。然后使用SPSS v. 16的Mann-Whitney u -非参数检验对数据进行分析。结果表明，海参生境与非海参生境的沉积物特征存在显著差异，但海水沉积物特征差异不显著。马杜拉海峡的海水参数值处于其寿命所需的范围内。这一分析证明了沉积物特征对Phyllophorus sp.的重要性。作为底栖沉积物捕食者，Phyllophorus不仅利用身体下方的基质作为栖息地，而且主要为其提供天然食物。
{"title":"Environmental Characteristic of Phyllophorus sp. (Echinodermata, Holothuroidea, Phyllophoridae) Habitat in the Madura Strait, Indonesia","authors":"Widianingsih Widianingsih, Retno Hartati, Hadi Endrawati","doi":"10.14710/jkt.v26i3.15064","DOIUrl":"https://doi.org/10.14710/jkt.v26i3.15064","url":null,"abstract":"Information on the environmental characteristics of many sea cucumber habitat is limited, despite these species exhibiting rapid exploitation and may lead to depletion. The present study combined a survey on many seawaters and sediment characteristics of habitat valuable aspidochirote holothurian, Sea Ball Cucumber, Phyllophorus sp. to compare with location with no sea cucumber in Madura Strait, Indonesia. Data from detailed surveys were used to compare both locations with measures of physical and chemical seawater parameters including temperature, salinity, dissolved oxygen, pH, phosphate, nitrate, ammonia, chlorophyll-a, total suspended solids, light transparency, and depth of water. The comparison was also carried out on physical and chemical parameters of surface sediment, i.e. phosphate, nitrate, ammonia, chlorophyll-a, grain size, total organic matter, and carbon-organic content. The data then were analyzed using Mann-Whitney U-Non Parametric Test with SPSS v. 16. The result revealed that there were significant differences between sediment characteristics of Sea Ball Cucumber habitat and no Sea Ball cucumber location, but not for seawater. Seawater parameter value in Madura Strait showed in the range required for its life. This analyzes proved the importance of sediment characteristics for Phyllophorus sp. As benthic deposit feeders, they did not only utilize substrate underneath the body for its habitat but also primarily to supply their natural food.","PeriodicalId":53001,"journal":{"name":"Jurnal Kelautan Tropis","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136377790","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}
Pub Date : 2023-01-01DOI: 10.14710/jkt.v26i1.16050
Muhammad Iqra Prasetya, V. Siregar, S. B. Agus
The utilization of satellite image data and image data processing techniques has become an efficient alternative to obtain bathymetric data in a broad and complicated area. This study aimed to determine the algorithm's performance in the waters of Lambasina Island. Atmospheric and radiometric correction using the Dark Object Subtraction (DOS) method for initial processing of Sentinel-2 images. The multispectral channel used, namely the blue, green, and red bands, was tested by regression using field observation data. The algorithms used to estimate bathymetry include Lyzenga, Stumpf, and Support Vector Machine (SVM). The test results of the three algorithms showed that the support vector machine algorithm was the best algorithm for estimating bathymetry after the Stumpf and Lyzenga algorithms. The correlation results of the SVM algorithm in the waters of the small Lambasina island got a correlation coefficient of determination R2 = 0.81 and the large Lambasina waters area R2 = 0.82. The second-best algorithm was Stumpf, with a correlation coefficient of determination of R2 = 0.79 in the waters of the small Lambasina island and R2 = 0.80 in the waters of the large Lambasina island. Lyzenga's algorithm got the correlation coefficient of determination R2 = 0.78 on small Lambasina Islands and large Lambasina Islands with a determination correlation coefficient value of R2 = 0.79.
{"title":"Comparison of Satellite-Derived Bathymetry Algorithm Accuracy Using Sentinel-2 Multispectral Satellite Image","authors":"Muhammad Iqra Prasetya, V. Siregar, S. B. Agus","doi":"10.14710/jkt.v26i1.16050","DOIUrl":"https://doi.org/10.14710/jkt.v26i1.16050","url":null,"abstract":"The utilization of satellite image data and image data processing techniques has become an efficient alternative to obtain bathymetric data in a broad and complicated area. This study aimed to determine the algorithm's performance in the waters of Lambasina Island. Atmospheric and radiometric correction using the Dark Object Subtraction (DOS) method for initial processing of Sentinel-2 images. The multispectral channel used, namely the blue, green, and red bands, was tested by regression using field observation data. The algorithms used to estimate bathymetry include Lyzenga, Stumpf, and Support Vector Machine (SVM). The test results of the three algorithms showed that the support vector machine algorithm was the best algorithm for estimating bathymetry after the Stumpf and Lyzenga algorithms. The correlation results of the SVM algorithm in the waters of the small Lambasina island got a correlation coefficient of determination R2 = 0.81 and the large Lambasina waters area R2 = 0.82. The second-best algorithm was Stumpf, with a correlation coefficient of determination of R2 = 0.79 in the waters of the small Lambasina island and R2 = 0.80 in the waters of the large Lambasina island. Lyzenga's algorithm got the correlation coefficient of determination R2 = 0.78 on small Lambasina Islands and large Lambasina Islands with a determination correlation coefficient value of R2 = 0.79.","PeriodicalId":53001,"journal":{"name":"Jurnal Kelautan Tropis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46340619","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}
Salt production in Madura Island is running by evaporation method (solar evaporator). Thus, the process of salt production is highly dependent on weather factors. Weather conditions is one of the determinants of the success of salt production targets. In this study aims to determine the forecasting process of rainfall in support of salt production process at PT Garam Gersik Putih Sumenep. The method used to analyze rainfall data on PT Garam Gersik Putih in 2022 is the box-Jenkins Autoregressive Integrated Moving Average (ARIMA) model. Box-Jenkins Autoregressive Integrated Moving Average (ARIMA) is one of the time series forecasting methods using values in the past as dependent variables and independent variables. From the forecast results, it is known that Gersik Putih Pheasant has 9 dry dasarian with an estimated production of 27,360 tons. Saltworks Gersik Putih has 456 plots of crystallization land with a total land area of 126.36 Ha. The results of weather forecasting analysis can determine the time of pre-production , salt production and post-production of salt. Pre-production of salt is an activity of preparation and maintenance of infrastructure to maximize the upcoming dry season. Pre-production of salt is carried out from January to May. Salt production activities are processing sea water into salt crystals that take place from June to early november. At the peak of drought in 1 plot of land crystallization can produce 3-6 tons in one harvest. Post salt production is the activity of transporting salt from pheasant land to olo warehouse which is carried out from November to December due to the increase in rainfall intensity. The box-Jenkins integrated Moving Average (ARIMA) Autoregressive Model applied has a pearson coefficient correlation level of 0,94%. The correlation value of the pearson coefficient shows that forecasting is very good, adequate and feasible to use. Produksi garam di Pulau Madura dilakukan dengan menggunakan metode penguapan (solar evaporator). Proses produksi garam bergantung pada curah hujan. Curah hujan menjadi penentu keberhasilan produksi garam. Pada penelitian ini bertujuan untuk mengetahui proses peramalan curah hujan dalam mendukung proses produksi garam pada PT Garam Gersik Putih Sumenep. Metode peramalan data curah hujan pada PT Garam Gersik Putih tahun 2022 adalah model Autoregressive Integrated Moving Average (ARIMA) Boox-Jenkins. ARIMA Boox-Jenkins adalah salah satu metode peramalan menggunakan nilai variabel independen dan variabel dependen. Dari hasil prakiraan diketahui bahwa pegaraman Gersik Putih memiliki ±9 dasarian kering dengan estimasi hasil produksi sebesar 27.360 ton. Pegaraman Gersik Putih memiliki 456 petak lahan kristalisasi dengan jumlah luas lahan 126,36 Ha. Hasil analisis peramalan cuaca juga dapat menentukan kapan berlangsungnya pra produksi garam, produksi garam serta pasca produksi garam. Pra produksi garam merupakan kegiatan persiapan dan pemeliharaan sarana prasarana untuk memaksimalk
马杜拉岛的盐生产采用蒸发法。因此，盐的生产过程在很大程度上取决于天气因素。天气条件是盐生产目标能否成功的决定因素之一。本研究旨在确定支持PT Garam Gersik Putih Sumenep盐生产过程的降雨预测过程。用于分析PT Garam Gersik White 2022年降雨量数据的方法是box-Jenkins自回归综合移动平均（ARIMA）模型。Box-Jenkins自回归综合移动平均（ARIMA）是一种将过去的值作为因变量和自变量的时间序列预测方法。根据预测结果可知，格什克普提山鸡有9个干基，预计产量27360吨。盐厂Gersik Putih拥有456块结晶土地，总土地面积为126.36公顷。天气预报分析的结果可以确定盐的生产前、生产盐和生产后的时间。盐的预生产是一项准备和维护基础设施的活动，以最大限度地利用即将到来的旱季。盐的预生产在1月至5月进行。盐生产活动是在6月至11月初将海水加工成盐晶体。在干旱高峰期，在1块土地上结晶，一次收获可生产3-6吨。盐后生产是指由于降雨强度的增加，在11月至12月期间将盐从野鸡地运输到olo仓库的活动。应用的box-Jenkins综合移动平均（ARIMA）自回归模型的pearson系数相关水平为0.94%。皮尔逊系数的相关值表明，预测是非常好的、充分的和可行的。马杜拉岛的盐生产是使用太阳能蒸发器的方法进行的。盐的生产过程取决于降雨量。雨滴是制盐成功的关键。本研究的目的是找出降雨恢复的过程，以支持PT Sumenep白桃大蒜的盐生产过程。预测2022年PT White Peach Salt降雨量数据的方法是自回归综合移动平均（ARIMA）模型Boox-Jenkins。ARIMA Boox-Jenkins是使用自变量和因变量值的记录方法之一。根据预测可知，白桃种植有±9个干基，预计产量为27360吨。白桃农场有456块结晶地块，面积126.36公顷。天气分析的结果还可以确定盐生产前、盐生产和盐生产后的时间。盐前生产是一项准备和保持预测方式的活动，以最大限度地提高明年冬天的产量。盐的生产在1月至5月之间进行。盐生产活动是将海水加工成盐晶体，从6月持续到11月初。在薄雾的顶端，在一层结晶土地上一次可生产3-6吨。盐陷阱是11月至12月由于降雨强度的增加而发生的从农田到嗅觉的盐运输活动。自回归综合移动平均（ARIMA）模型Boox-Jenkins预计具有0.94%的pearson系数相关水平。皮尔逊系数的相关值值得用于记录方法。
{"title":"Peramalan Curah Hujan Terhadap Produktivitas Garam Di Gersik Putih Sumenep","authors":"Tifani Noviasari, Nike Ika Nuzula, Makhfud Efendy, Angga Arifta Febrianto, A. Darmadi","doi":"10.14710/jkt.v26i1.16139","DOIUrl":"https://doi.org/10.14710/jkt.v26i1.16139","url":null,"abstract":"Salt production in Madura Island is running by evaporation method (solar evaporator). Thus, the process of salt production is highly dependent on weather factors. Weather conditions is one of the determinants of the success of salt production targets. In this study aims to determine the forecasting process of rainfall in support of salt production process at PT Garam Gersik Putih Sumenep. The method used to analyze rainfall data on PT Garam Gersik Putih in 2022 is the box-Jenkins Autoregressive Integrated Moving Average (ARIMA) model. Box-Jenkins Autoregressive Integrated Moving Average (ARIMA) is one of the time series forecasting methods using values in the past as dependent variables and independent variables. From the forecast results, it is known that Gersik Putih Pheasant has 9 dry dasarian with an estimated production of 27,360 tons. Saltworks Gersik Putih has 456 plots of crystallization land with a total land area of 126.36 Ha. The results of weather forecasting analysis can determine the time of pre-production , salt production and post-production of salt. Pre-production of salt is an activity of preparation and maintenance of infrastructure to maximize the upcoming dry season. Pre-production of salt is carried out from January to May. Salt production activities are processing sea water into salt crystals that take place from June to early november. At the peak of drought in 1 plot of land crystallization can produce 3-6 tons in one harvest. Post salt production is the activity of transporting salt from pheasant land to olo warehouse which is carried out from November to December due to the increase in rainfall intensity. The box-Jenkins integrated Moving Average (ARIMA) Autoregressive Model applied has a pearson coefficient correlation level of 0,94%. The correlation value of the pearson coefficient shows that forecasting is very good, adequate and feasible to use. Produksi garam di Pulau Madura dilakukan dengan menggunakan metode penguapan (solar evaporator). Proses produksi garam bergantung pada curah hujan. Curah hujan menjadi penentu keberhasilan produksi garam. Pada penelitian ini bertujuan untuk mengetahui proses peramalan curah hujan dalam mendukung proses produksi garam pada PT Garam Gersik Putih Sumenep. Metode peramalan data curah hujan pada PT Garam Gersik Putih tahun 2022 adalah model Autoregressive Integrated Moving Average (ARIMA) Boox-Jenkins. ARIMA Boox-Jenkins adalah salah satu metode peramalan menggunakan nilai variabel independen dan variabel dependen. Dari hasil prakiraan diketahui bahwa pegaraman Gersik Putih memiliki ±9 dasarian kering dengan estimasi hasil produksi sebesar 27.360 ton. Pegaraman Gersik Putih memiliki 456 petak lahan kristalisasi dengan jumlah luas lahan 126,36 Ha. Hasil analisis peramalan cuaca juga dapat menentukan kapan berlangsungnya pra produksi garam, produksi garam serta pasca produksi garam. Pra produksi garam merupakan kegiatan persiapan dan pemeliharaan sarana prasarana untuk memaksimalk","PeriodicalId":53001,"journal":{"name":"Jurnal Kelautan Tropis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41851780","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}
Pub Date : 2022-12-02DOI: 10.14710/jkt.v26i1.15770
Rijal Amri, Cikal Kholifiyanti, Eti Sophia Wijayanti, Syamsul Bayan, R. Hidayat, N. Hidayati
The coastal area is an important sector in the tourism industry, which plays as an affected area but also a contributor to marine debris. Therefore, environmental health risks due to Marine debris have become a major concern at the international, regional, and national levels. This study aims to examine the composition and spatial distribution of marine debris in the Pasir Putih beach area of Losari, Brebes. The results of this study can be used as baseline data for marine debris, as well as an evaluation of the implementation of the national action plan for handling marine debris. The method used is a field survey at 10 stations from August-October 2021. Composition and distribution analysis of marine debris is carried out based on the type, mass, and size. The marine debris found was 898 items (4,009 grams by weight). Based on its size, the marine debris was dominated by macro debris (99%). Based on the composition, 9 categories of marine debris were found: plastic, plastic foam, glass and ceramics, cloth, metal, paper and cardboard, rubber, wood, and other materials. The composition of marine waste is dominated by plastic debris (35%) and glass and ceramics (20%). Marine debris is evenly distributed in all research stations. The high level of marine debris on the beach is thought to be due to anthropogenic activities and water connectivity with residential areas around the coast. Environmental awareness education, as well as the enforcement of regulations by policymakers, are strategic actions that can be taken to overcome these problems. Wilayah pantai merupakan sektor penting dalam industri pariwisata, yang menjadi daerah terdampak tapi juga sekaligus penyumbang sampah laut. Karenanya, resiko kesehatan lingkungan akibat sampah laut telah menjadi major concern pada level internasional, regional, maupun nasional. Penelitian ini bertujuan untuk mengkaji komposisi dan distribusi spasial sampah laut di kawasan Pantai Pasir Putih Losari, Brebes. Selain itu, hasil penelitian ini dapat menjadi baseline data sampah laut, sebagai evaluasi atas implementasi rencana aksi nasional penanganan sampah laut. Metode yang digunakan adalah survei lapang pada 10 stasiun selama Agustus-Oktober 2021. Analisis komposisi dan distribusi sampah laut dilakukan berdasarkan jenis, massa, dan ukuran dari sampah laut. Sampah laut yang ditemukan sebanyak 898 item dengan berat 4.009 gram. Berdasarkan ukurannya, sampah yang ditemukan didominasi oleh sampah makro (99%) dan sampah meso (1%). Adapun berdasarkan komposisi jenisnya, ditemukan 9 kategori sampah laut yang terdiri dari plastik, busa plastik, kaca dan keramik, kain, logam, kertas dan kardus, karet, kayu, dan bahan lainnya. Komposisi sampah laut didominasi oleh sampah plastik (35%) dan kaca dan keramik (20%). sampah laut terdistribusi merata di seluruh stasiun penelitian. Tingginya sampah laut di pantai ini diduga karena aktivitas antropogenik serta konektivitas perairan dengan wilayah pemukiman di sekitar pantai.
沿海地区是旅游业的一个重要部门，它既是受影响的地区，也是海洋垃圾的贡献者。因此，海洋垃圾造成的环境健康风险已成为国际、区域和国家各级关注的主要问题。本研究旨在研究布里布省Losari的Pasir Putih海滩地区海洋垃圾的组成和空间分布。本研究结果可作为海洋垃圾的基线数据，也可作为国家海洋垃圾处理行动计划执行情况的评价。使用的方法是在2021年8月至10月期间在10个站点进行实地调查。根据海洋垃圾的类型、质量和大小进行海洋垃圾的组成和分布分析。海洋垃圾共有898件(重量为4009克)。从大小上看，海洋碎屑以宏观碎屑为主(99%)。根据组成，发现了9类海洋垃圾:塑料、塑料泡沫、玻璃和陶瓷、布、金属、纸和纸板、橡胶、木材和其他材料。海洋垃圾的成分主要是塑料碎片(35%)和玻璃和陶瓷(20%)。海洋垃圾在各考察站分布均匀。海滩上堆积的大量海洋垃圾被认为是由于人为活动和与海岸周围居民区的水域连接造成的。环境意识教育以及政策制定者执行法规是克服这些问题可以采取的战略行动。我想说的是，我想说的是，我想说的是，我想说的是，我想说的是，我想说的是，我想说的是，我想说的是，我想说的是，我想说的是，我想说的是，我想说的是。Karenanya, resiko kesehatan lingkungan akibat sampah laut telah menjadi主要关注帕达一级的国际、区域、国家。Penelitian ini bertujuan untuk mengkaji komposisi dan distribusi special sampah laut di kawasan Pantai Pasir Putih Losari, Brebes。Selain itu, hasil penelitian ini，在menjadi基线数据样本分析中，sebagai评估数据的实施，在美国国家penanganan样本分析中。2013年10月。分析komposisi dan distribubusi sampah laut dilakukan berdasarkan jenis, massa, danukuran dari sampah laut。桑巴laut yang ditemukan sebanyak 898项登干重4.009克。Berdasarkan ukurannya, sampah yang ditemukan didominasi oleh sampah makro (99%) dan sampah meso(1%)。9 kategori sampai laut yang terdiri dari plastik, busa plastik, kain, logam, ktas dan kardus, karet, kayu, dan bahan lainnya。Komposisi sampah laut didominasi oleh sampah plastik (35%) dan kaca dan keramik(20%)。桑巴laut terdistribution business merata di selururu stasiun penelitian。Tingginya sampah laut di pantai ini diduga karena aktivitas anthrogengenik serta konktivitas perairan dengan wilayah pemukiman di sekitar pantai。杜卡西kesadaran lingkungan serta adanya penegakan regulasi oleh pemangku kebijakan merupakan langkah战略yang dapat dilakakan untuk mengatasi个人tersebut。
{"title":"Komposisi dan Distribusi Sampah Laut di Pantai Pasir Putih Losari, Brebes, Jawa Tengah","authors":"Rijal Amri, Cikal Kholifiyanti, Eti Sophia Wijayanti, Syamsul Bayan, R. Hidayat, N. Hidayati","doi":"10.14710/jkt.v26i1.15770","DOIUrl":"https://doi.org/10.14710/jkt.v26i1.15770","url":null,"abstract":" The coastal area is an important sector in the tourism industry, which plays as an affected area but also a contributor to marine debris. Therefore, environmental health risks due to Marine debris have become a major concern at the international, regional, and national levels. This study aims to examine the composition and spatial distribution of marine debris in the Pasir Putih beach area of Losari, Brebes. The results of this study can be used as baseline data for marine debris, as well as an evaluation of the implementation of the national action plan for handling marine debris. The method used is a field survey at 10 stations from August-October 2021. Composition and distribution analysis of marine debris is carried out based on the type, mass, and size. The marine debris found was 898 items (4,009 grams by weight). Based on its size, the marine debris was dominated by macro debris (99%). Based on the composition, 9 categories of marine debris were found: plastic, plastic foam, glass and ceramics, cloth, metal, paper and cardboard, rubber, wood, and other materials. The composition of marine waste is dominated by plastic debris (35%) and glass and ceramics (20%). Marine debris is evenly distributed in all research stations. The high level of marine debris on the beach is thought to be due to anthropogenic activities and water connectivity with residential areas around the coast. Environmental awareness education, as well as the enforcement of regulations by policymakers, are strategic actions that can be taken to overcome these problems. Wilayah pantai merupakan sektor penting dalam industri pariwisata, yang menjadi daerah terdampak tapi juga sekaligus penyumbang sampah laut. Karenanya, resiko kesehatan lingkungan akibat sampah laut telah menjadi major concern pada level internasional, regional, maupun nasional. Penelitian ini bertujuan untuk mengkaji komposisi dan distribusi spasial sampah laut di kawasan Pantai Pasir Putih Losari, Brebes. Selain itu, hasil penelitian ini dapat menjadi baseline data sampah laut, sebagai evaluasi atas implementasi rencana aksi nasional penanganan sampah laut. Metode yang digunakan adalah survei lapang pada 10 stasiun selama Agustus-Oktober 2021. Analisis komposisi dan distribusi sampah laut dilakukan berdasarkan jenis, massa, dan ukuran dari sampah laut. Sampah laut yang ditemukan sebanyak 898 item dengan berat 4.009 gram. Berdasarkan ukurannya, sampah yang ditemukan didominasi oleh sampah makro (99%) dan sampah meso (1%). Adapun berdasarkan komposisi jenisnya, ditemukan 9 kategori sampah laut yang terdiri dari plastik, busa plastik, kaca dan keramik, kain, logam, kertas dan kardus, karet, kayu, dan bahan lainnya. Komposisi sampah laut didominasi oleh sampah plastik (35%) dan kaca dan keramik (20%). sampah laut terdistribusi merata di seluruh stasiun penelitian. Tingginya sampah laut di pantai ini diduga karena aktivitas antropogenik serta konektivitas perairan dengan wilayah pemukiman di sekitar pantai.","PeriodicalId":53001,"journal":{"name":"Jurnal Kelautan Tropis","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67007105","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}
Pub Date : 2022-11-15DOI: 10.14710/jkt.v25i3.16279
C. A. Suryono, Agus Indardjo
The Semarang and Tegal coastal waters are traditional fishing ground areas. However, the increasing use of coastal areas for various activities will increase pollutants in the coastal waters. Heavy metals are pollutants that always appear in waters and accumulate in marine organisms. These study aims to determine As and Hg metals contained in the tissues of several marine organisms caught on the coast of Semarang and Tegal, Central Java. The analysis of As and Hg concentrations in organismal tissues using ICPMS. The results showed that As and Hg were found in biota such as white shrimp (P. merguensis), blue crab (P. pelagicus), shellfish (A. inaequivalvis) and gastropods (H. ternatanus). Arsenic concentrations in the four biotas caught in Tegal (1.6 – 5.3 ppm) and Semarang (2.58 – 4.9 ppm). Meanwhile, Hg metal (0.02 – 0.15 ppm) in Tegal and (0.034 – 0.15 ppm) in Semarang. The concentration level of As based on the biota caught in the Tegal waters are sequentially Shellfish > White shrimp > Gastropods > Blue swimming crab. Meanwhile, the concentration of Arsenic in the biotas in Semarang waters are sequentially shellfish > white shrimp > blue crab > gastropods. However, Hg metal in the biota obtained in these two areas is very low Pesisir Semarang dan Tegal merupakan daerah penangkapan perikanan tradisional. Namun dengan semakin meningkatnya pemamnfaatan wilayah pesisir untuk berbagai kegiatan akan meningkatkan polutan dalam perairan. Logam berat merupakan polutan yang selalu muncul dalam perairan dan terakumulasi organisme laut. Penelitian ini bertujuan untuk mengetahui logam As dan Hg yang terdapat dalam jaringan beberapa biota yang ditangkap pesisir Semarang dan Tegal Jawa Tengah. Analisa konsentrasi As dan Hg dalam jaringan organisme menguunakan ICPMS. Hasil penelitian menunjukan logam As dan Hg ditemukan dalam biota seperti udang putih (P. Merguensis), rajungan (P. pelagicus), kerang bulu (A. inaequivalvis) dan gastropoda (H. ternatanus). Konsentrasi Arsen di keempat biota yang ditangkap di Tegal (1,6 – 5,3 ppm) dan Semarang (2,58 – 4,9 ppm). Sedangkan logam Hg (0,02 – 0,15 ppm) di Tegal dan (0,034 – 0,15 ppm) Semarang. Tingkat konsentrasi logam As berdasarkan biota yang tertangkap di perairan Tegal secara berurutan Kerang bulu > Udang putih > Gastropoda > Rajungan. Sedangkan konsentrasi Arsen dalam biota di perairan Semarang secara berurutan Kerang bulu > Udang putih > Rajungan > Gastropoda. Namun logam Hg dalam biota yang didapat di kedua daerah tersebut sangat rendah.
三宝垄和法理沿海水域是传统的渔场。然而，越来越多地利用沿海地区进行各种活动将增加沿海水域的污染物。重金属是一种经常出现在水中并积聚在海洋生物体内的污染物。这项研究的目的是确定在中爪哇三宝垄和提甲海岸捕获的几种海洋生物组织中所含的砷和汞金属。有机组织中砷和汞浓度的ICPMS分析。结果表明:白虾(P. merguensis)、蓝蟹(P. pelagicus)、贝类(A. inaequivalvis)和腹足类(H. ternatanus)中均含有砷和汞。在泰加尔(1.6 - 5.3 ppm)和三宝垄(2.58 - 4.9 ppm)捕获的四种生物中的砷浓度。与此同时，泰格和三宝垄的汞含量分别为0.02 ~ 0.15 ppm和0.034 ~ 0.15 ppm。合法水域捕获的生物群中砷的浓度依次为贝类bb0白虾>腹足类>蓝蟹。同时，三宝垄水域生物群中砷的浓度依次为贝类、白虾、蓝蟹、腹足类、蓝蟹、贝类。然而，在这两个地区获得的生物群中汞金属含量非常低。Namun dengan semakin meningkatnya pemamnfaatan wilayah pesisir untuk berbagai kegiatan akan meningkatkan pollution和dalam perairan。Logam berat merupakan polutan yang selalu muncul dalam perairan and terakumulasi organism laut。Penelitian ini bertujuan untuk mengetahui logam As dan Hg yang terdapat dalam jaringan beberapa biota yang ditangkap三宝郎行政长官和爪哇登加。[1][1][1][1][1][1][1]。hail penelitian menunjukan logam As dan Hg ditemukan dalam生物群seperti udang putih (P. Merguensis)， rajungan (P. pelagicus)， kerang bulu (A. inaequivalvis)和gastropoda (H. ternatanus)。Konsentrasi Arsen di keempat biota yang ditangkap di Tegal (1,6 ~ 5,3 ppm)和Semarang (2,58 ~ 4,9 ppm)。Sedangkan logam Hg (0.02 - 0.15 ppm) di Tegal dan (0.034 - 0.15 ppm)三宝垄。Tingkat konsentrasi logam As berdasarkan biota yang tertangkap di perairan legal secara berurutan Kerang bulu b> Udang putih b> Gastropoda > Rajungan。Sedangkan konsentrasi Arsen dalam biota di perairan三宝垄secara berurutan Kerang bulu b> Udang putih > Rajungan >腹足类。Namun logam Hg dalam biota yang didapat di kedua daerah tersebut sangat rendah。
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Pub Date : 2022-11-02DOI: 10.14710/jkt.v26i1.15693
Rika Anggraini, Ita Karlina
There are many reports of a decline in the population of horseshoe crabs in Asia, but knowledge about the distribution of horseshoe crabs on the coast of Bintan Island is still limited. We conducted interviews in 15 locations on the coast of Bintan Island. The information we collect is about the distribution of potential spawning areas and the utilization of horseshoe crabs in each area. Respondents were randomly selected as the surveyor walked through each study site. Verification of the distribution and breeding grounds of horseshoe crabs by respondents was done by asking respondents to indicate the location where they had seen pairs of horseshoe crabs mating, juveniles, and horseshoe crab eggs met; we also validated with direct observations made in the field. Respondents reported that in 15 locations, they had seen juveniles and horseshoe crabs in pairs. One respondent directly observed horseshoe crab eggs on the beach, and only a few found horseshoe crabs laying eggs. Respondents who saw paired horseshoe crabs generally worked as fishermen. We found three juvenile locations for horseshoe crabs, namely at Tembeling, Pengujan and Pengudang locations. At three locations Tachypleus gigas and Carcinoscorpius rotundicauda were found. Horseshoe crabs on Bintan Island are used as fertilizer, medicine and wall decoration. In this study, local wisdom provides essential information regarding the potential distribution of spawning grounds and the utilization of horseshoe crabs on the coast of Bintan Island Banyaknya laporan mengenai penurunan populasi kepiting tapal kuda di Asia, tetapi pengetahuan tentang distribusi kepiting tapal kuda di Pesisir Pulau Bintan terbatas. kami melakukan wawancara di 15 lokasi di pesisir Pulau Bintan. Informasi yang kami kumpulkan tentang distribusi potensi daerah pemijahan, dan pemanfaatan kepiting tapal kuda pada masing-masing daerah. Responden dipilih secara acak pada saat pihak survei berjalan menyelusuri setiap lokasi penelitian. Verifikaksi distribusi dan tempat pembibitan kepiting tapal kuda oleh responden dilakukan dengan meminta responden untuk menunjukkan lokasi yang pernah melihat sepasang kepiting tapal kuda kawin, juvenil, serta telur kepiting tapal kuda di temui, kami juga melakukan validasi dengan pengamatan langsung yang di lakukan di lapangan. Responden telah melaporkan bahwa pada 15 lokasi pernah melihat juvenil dan kepiting tapal kuda berpasangan. Ada satu responden yang secara langsung mengamati telur kepiting tapal kuda di pantai dan hanya sebagian yang menemukan kepiting tapal kuda bertelur. Responden yang melihat kepiting tapal kuda berpasangan pada umumnya yang berkerja sebagai nelayan. Kami menemukan 3 lokasi juvenil kepiting tapal kuda yaitu pada lokasi Tembeling, Pengujan dan Pengudang. Pada ketiga lokas tersebut ditemukan jenis Tachypleus gigas dan Carcinoscorpius rotundicauda. Kepiting tapal kuda di Pulau Bintan di manfaatkan sebagai pupuk, obat dan hiasan dinding. Dalam penelitian ini pengetah
有许多关于亚洲马蹄蟹数量下降的报道，但对民丹岛海岸马蹄蟹分布的了解仍然有限。我们在民丹岛海岸的15个地点进行了采访。我们收集的资料是关于潜在产卵地区的分布和每个地区对马蹄蟹的利用情况。调查人员在走访每个研究地点时随机选择受访者。为了核实马蹄蟹的分布和繁殖地，调查人员要求受访者指出他们曾在何处看到成对的马蹄蟹交配、幼蟹和马蹄蟹卵相遇;我们还通过实地的直接观察进行了验证。受访者报告说，他们在15个地点看到幼蟹和马蹄蟹成双成对。一名受访者在沙滩上直接观察到马蹄蟹卵，只有少数人发现马蹄蟹产卵。看到成对马蹄蟹的受访者一般都是渔民。我们在Tembeling、Pengujan和Pengudang三个地点发现了马蹄蟹的幼崽。在3个部位发现了大斑藻和圆尾癌。民丹岛上的马蹄蟹被用作肥料、药物和墙壁装饰。在本研究中，当地智慧为民丹岛海岸马蹄蟹产卵地的潜在分布和利用提供了必要的信息，tetapi pengetahuan tentang distribusi kepiting tapal kuda di Pesisir Pulau Bintan terbatas。kami melakukan wawancara是民丹岛总统。Informasi yang kami kumpulkan tentang distribusi potentisi daerah pemijahan, dan pemanfaatan keep keeping tapal kuda pmasing -masing daerah。被调查者称，他们的调查对象是印度人，而不是印度人。verfikaki distribution busi dan tempat pembibitan kepiting tapal kuda oleh respondenakukan dengan meminta respondenukan menunjukkan lokasi yang pernah meliha sepasang kepiting tapal kuda kuda kawin, juvenil, serta telur kepiting tapal kuda di temui, kami juga melakukan validasi dengan pengamatan langsung yang dilakukan di lapangan。Responden telah melaporkan bahwa pada 15 lokasi pernah melihat少年dan keep tapal kuda berpasangan。Ada satu回答了yang secara langsung mengamati telur, keep talal kuda di pantai dan hanya sebagian yang menemukan keep talal kuda bertelur。回应杨meliih说:“我一直在为我的女儿祈祷，我一直在为她祈祷。”Kami menemukan 3 lokasi幼崽keiting tapal kuda yitu pada lokasi Tembeling，企鹅dan Pengudang。Pada ketiga看起来简洁，但ditemukan jenas是Tachypleus gigas和Carcinoscorpius roundundicauda。keep tapal kuda di Pulau Bintan di manfaatkan sebagai pupuk, obat danhiasan ding。Dalam penelitian ini pengetahuan是当地的成员，他是一名信息专家，他是一名潜在的商人，他是民丹岛总统。
{"title":"Pengetahuan Masyarakat Lokal Terkait Keberadaan Kepiting Tapal Kuda dan Distribusinya di Sepanjang Pesisir Pulau Bintan","authors":"Rika Anggraini, Ita Karlina","doi":"10.14710/jkt.v26i1.15693","DOIUrl":"https://doi.org/10.14710/jkt.v26i1.15693","url":null,"abstract":"There are many reports of a decline in the population of horseshoe crabs in Asia, but knowledge about the distribution of horseshoe crabs on the coast of Bintan Island is still limited. We conducted interviews in 15 locations on the coast of Bintan Island. The information we collect is about the distribution of potential spawning areas and the utilization of horseshoe crabs in each area. Respondents were randomly selected as the surveyor walked through each study site. Verification of the distribution and breeding grounds of horseshoe crabs by respondents was done by asking respondents to indicate the location where they had seen pairs of horseshoe crabs mating, juveniles, and horseshoe crab eggs met; we also validated with direct observations made in the field. Respondents reported that in 15 locations, they had seen juveniles and horseshoe crabs in pairs. One respondent directly observed horseshoe crab eggs on the beach, and only a few found horseshoe crabs laying eggs. Respondents who saw paired horseshoe crabs generally worked as fishermen. We found three juvenile locations for horseshoe crabs, namely at Tembeling, Pengujan and Pengudang locations. At three locations Tachypleus gigas and Carcinoscorpius rotundicauda were found. Horseshoe crabs on Bintan Island are used as fertilizer, medicine and wall decoration. In this study, local wisdom provides essential information regarding the potential distribution of spawning grounds and the utilization of horseshoe crabs on the coast of Bintan Island Banyaknya laporan mengenai penurunan populasi kepiting tapal kuda di Asia, tetapi pengetahuan tentang distribusi kepiting tapal kuda di Pesisir Pulau Bintan terbatas. kami melakukan wawancara di 15 lokasi di pesisir Pulau Bintan. Informasi yang kami kumpulkan tentang distribusi potensi daerah pemijahan, dan pemanfaatan kepiting tapal kuda pada masing-masing daerah. Responden dipilih secara acak pada saat pihak survei berjalan menyelusuri setiap lokasi penelitian. Verifikaksi distribusi dan tempat pembibitan kepiting tapal kuda oleh responden dilakukan dengan meminta responden untuk menunjukkan lokasi yang pernah melihat sepasang kepiting tapal kuda kawin, juvenil, serta telur kepiting tapal kuda di temui, kami juga melakukan validasi dengan pengamatan langsung yang di lakukan di lapangan. Responden telah melaporkan bahwa pada 15 lokasi pernah melihat juvenil dan kepiting tapal kuda berpasangan. Ada satu responden yang secara langsung mengamati telur kepiting tapal kuda di pantai dan hanya sebagian yang menemukan kepiting tapal kuda bertelur. Responden yang melihat kepiting tapal kuda berpasangan pada umumnya yang berkerja sebagai nelayan. Kami menemukan 3 lokasi juvenil kepiting tapal kuda yaitu pada lokasi Tembeling, Pengujan dan Pengudang. Pada ketiga lokas tersebut ditemukan jenis Tachypleus gigas dan Carcinoscorpius rotundicauda. Kepiting tapal kuda di Pulau Bintan di manfaatkan sebagai pupuk, obat dan hiasan dinding. Dalam penelitian ini pengetah","PeriodicalId":53001,"journal":{"name":"Jurnal Kelautan Tropis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44823032","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}
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