Various problems are found in aquaculture activities while decreasing production due to fish disease attacks and slow growth. Various alternatives can be applied by cultivators, one of which is the use of prebiotics. Coconut pulp contains galactomannan which serves as prebiotic and belongs to agricultural waste usually used as animal feed. This study aimed to determine the level of growth and survival rate of saline tilapia (O. Niloticus) after given coconut pulp extract. A completely randomized design (CRD) was emplyed. This study consisted of three treatments with three replications. Treatment A (maintenance of saline tilapia without adding coconut pulp extract), Treatment B (rearing saline tilapia with the addition of 1% / kg of feed with coconut pulp extract), and Treatment C (rearing saline tilapia with the addition of 2% / kg of feed with coconut pulp extract). The parameters observed were growth, survival and water quality. The results of growth and survival parameters on this study were not significantly different among each treatment. Daily growth rate (DGR) was obtained in treatment C, namely LPH 1.28%. The highest survival rate was obtained in treatment B, namely 80%.Keywords: nile tilapia, coconut pulp ekstract, galactomannan
{"title":"SUPPLEMENTARY OF COCONUT PUPL EXTRACT TO FEED TO INCREASE GROWTH OF SALINE TILAPIA","authors":"A. Oktaviana, A. H. Verdian, Rahmadi Aziz","doi":"10.35308/jpt.v9i1.4128","DOIUrl":"https://doi.org/10.35308/jpt.v9i1.4128","url":null,"abstract":"Various problems are found in aquaculture activities while decreasing production due to fish disease attacks and slow growth. Various alternatives can be applied by cultivators, one of which is the use of prebiotics. Coconut pulp contains galactomannan which serves as prebiotic and belongs to agricultural waste usually used as animal feed. This study aimed to determine the level of growth and survival rate of saline tilapia (O. Niloticus) after given coconut pulp extract. A completely randomized design (CRD) was emplyed. This study consisted of three treatments with three replications. Treatment A (maintenance of saline tilapia without adding coconut pulp extract), Treatment B (rearing saline tilapia with the addition of 1% / kg of feed with coconut pulp extract), and Treatment C (rearing saline tilapia with the addition of 2% / kg of feed with coconut pulp extract). The parameters observed were growth, survival and water quality. The results of growth and survival parameters on this study were not significantly different among each treatment. Daily growth rate (DGR) was obtained in treatment C, namely LPH 1.28%. The highest survival rate was obtained in treatment B, namely 80%.Keywords: nile tilapia, coconut pulp ekstract, galactomannan","PeriodicalId":246413,"journal":{"name":"JURNAL PERIKANAN TROPIS","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117085203","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}
One of the government's policies in encouraging economic growth from the fishery sectoris to increase fish consumption. Arongan Village, Kuala Pesisir Subdistrict, Nagan RayaRegency is one of the villages that has quite large fishery potential. The high potential offisheries is not always accompanied by a high level of fishery products consumption aswell. In this regard, accurate information is needed regarding the level of fishconsumption. In this study, the level of fish consumption was divided into threecategories, namely low, medium and high consumption levels. This study aimed todetermine the level of fish consumption and analyze the pattern of relationships of factorsthat influence the level of marine fish consumption in the Arongan Village, Kuala PesisirDistrict, Nagan Raya Regency. The analytical method used was descriptive quantitativemethod and multinomial logistic regression. The data used in this study was primary dataobtained through observation and questionnaires by taking samples based on randomsampling. There were 80 respondents. The results showed that there were 36.25% highfish consumption levels, 51.25% moderate fish consumption levels, and 12.5% low fishconsumption levels. It was also found that the variables of education, occupation, andincome simultaneously did not have a significant effect on the level of fish consumption,while partially, the variables of education, occupation and income did not have asignificant effect on the level of marine fish consumption.
{"title":"ANALISIS TINGKAT KONSUMSI IKAN DI DESA ARONGAN, KECAMATAN KUALA PESISIR, KABUPATEN NAGAN RAYA","authors":"Yuli Milda Maiman, U. Hasanah","doi":"10.35308/jpt.v9i1.4979","DOIUrl":"https://doi.org/10.35308/jpt.v9i1.4979","url":null,"abstract":"One of the government's policies in encouraging economic growth from the fishery sectoris to increase fish consumption. Arongan Village, Kuala Pesisir Subdistrict, Nagan RayaRegency is one of the villages that has quite large fishery potential. The high potential offisheries is not always accompanied by a high level of fishery products consumption aswell. In this regard, accurate information is needed regarding the level of fishconsumption. In this study, the level of fish consumption was divided into threecategories, namely low, medium and high consumption levels. This study aimed todetermine the level of fish consumption and analyze the pattern of relationships of factorsthat influence the level of marine fish consumption in the Arongan Village, Kuala PesisirDistrict, Nagan Raya Regency. The analytical method used was descriptive quantitativemethod and multinomial logistic regression. The data used in this study was primary dataobtained through observation and questionnaires by taking samples based on randomsampling. There were 80 respondents. The results showed that there were 36.25% highfish consumption levels, 51.25% moderate fish consumption levels, and 12.5% low fishconsumption levels. It was also found that the variables of education, occupation, andincome simultaneously did not have a significant effect on the level of fish consumption,while partially, the variables of education, occupation and income did not have asignificant effect on the level of marine fish consumption.","PeriodicalId":246413,"journal":{"name":"JURNAL PERIKANAN TROPIS","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125466899","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}
Fazril Saputra, Yusran Ibrahim, Dini Islama, Mahendra Mahendra, M. A. Nasution, Ihsanul Khairi
AbstractSnakehead fish (Channa sp.) is one of Indonesia's native freshwater commodities that has been successfully domesticated by fish farmers, yet the domesticated snakehead fish culture still has problems, namely the low survival and growth of local snakehead fish. Overcoming this problem requires a technology that can optimize the survival and growth of the domesticated snakehead fish (Channa sp.). One technology that can be applied is the use of probiotics. This reserach aimed to examine different probiotics through feed to optimize the survival and growth of domesticated snakehead fish (Channa sp.). This research was conducted with an experimental method. The experimental design used was a completely randomized design with 4 treatments and 3 replications. The treatments were control treatment (P0), treatment with probiotic composition of Lactobacillus sp., Bacillus spp. and Nitrosomonas sp. (P1), treatment with probiotic composition of Lactobacillus casei and Saccharomyces cerevisiae (P2), and treatment with probiotic composition of Lactobacillus sp., Acetobacter, Rhodobacter sp., yeast (P3). The results showed that different probiotic feeding had a significant effect (P<0.05) on the survival parameters and different probiotic feeding compositions had no significant effect (P>0.05) on the growth parameters. The composition of Lactobacillus casei and Saccharomyces cerevisiae probiotics is the best probiotic composition to increase survival and growth of domesticated snakehead fish.Keywords: Domestication, Growth, Survival Rate, Probiotic
{"title":"PEMBERIAN PROBIOTIK UNTUK OPTIMALISASI KELANGSUNGAN HIDUP DAN PERTUMBUHAN IKAN GABUS LOKAL (Channa sp.) HASIL DOMESTIKASI","authors":"Fazril Saputra, Yusran Ibrahim, Dini Islama, Mahendra Mahendra, M. A. Nasution, Ihsanul Khairi","doi":"10.35308/jpt.v9i1.6014","DOIUrl":"https://doi.org/10.35308/jpt.v9i1.6014","url":null,"abstract":"AbstractSnakehead fish (Channa sp.) is one of Indonesia's native freshwater commodities that has been successfully domesticated by fish farmers, yet the domesticated snakehead fish culture still has problems, namely the low survival and growth of local snakehead fish. Overcoming this problem requires a technology that can optimize the survival and growth of the domesticated snakehead fish (Channa sp.). One technology that can be applied is the use of probiotics. This reserach aimed to examine different probiotics through feed to optimize the survival and growth of domesticated snakehead fish (Channa sp.). This research was conducted with an experimental method. The experimental design used was a completely randomized design with 4 treatments and 3 replications. The treatments were control treatment (P0), treatment with probiotic composition of Lactobacillus sp., Bacillus spp. and Nitrosomonas sp. (P1), treatment with probiotic composition of Lactobacillus casei and Saccharomyces cerevisiae (P2), and treatment with probiotic composition of Lactobacillus sp., Acetobacter, Rhodobacter sp., yeast (P3). The results showed that different probiotic feeding had a significant effect (P<0.05) on the survival parameters and different probiotic feeding compositions had no significant effect (P>0.05) on the growth parameters. The composition of Lactobacillus casei and Saccharomyces cerevisiae probiotics is the best probiotic composition to increase survival and growth of domesticated snakehead fish.Keywords: Domestication, Growth, Survival Rate, Probiotic ","PeriodicalId":246413,"journal":{"name":"JURNAL PERIKANAN TROPIS","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127851875","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}
The Kaliyasa River was one of the many rivers in Cilacap Country. The River Kaliyasa is physically close to populations and industries that produce a wide range of products, making it a great potential for receiving both domestic and industrial wastes. The study was carried out in Oktober-November 2020 with four sample viewing points before the wastewater output, the wastewater outlet, at exactly the time of the wastewater output, and after the wastewater output. The sampling was done three times every two weeks. Based on this study, calculations indicate that the average value of the pollution load from the wastewater outlet was staggering at 32.661,60 kg/day. The average price of the pollution burden from the station after the wastewater output was produced a value of 15.945,92 kg/day. Average TSS, DO, BOD, and COD variables have already surpassed the second of class river quality. The Kaliyasa River pollution index is obtained that according to TSS, DO, BOD, and COD variables measured indicate IP Numbers in level 6, which include 6,16 of moderate pollutants. Keywords: Comparisons with Water Quality, Load Of River Pollution, Pollution Index
{"title":"POLLUTION LOAD (TSS, DO, BOD, AND COD) AND THE KALIYASA RIVER POLLUTION INDEX IN CILACAP DISTRICTS","authors":"Nilna Almuna Rizqi, H. Haeruddin, S. Rudiyanti","doi":"10.35308/jpt.v8i2.3582","DOIUrl":"https://doi.org/10.35308/jpt.v8i2.3582","url":null,"abstract":"The Kaliyasa River was one of the many rivers in Cilacap Country. The River Kaliyasa is physically close to populations and industries that produce a wide range of products, making it a great potential for receiving both domestic and industrial wastes. The study was carried out in Oktober-November 2020 with four sample viewing points before the wastewater output, the wastewater outlet, at exactly the time of the wastewater output, and after the wastewater output. The sampling was done three times every two weeks. Based on this study, calculations indicate that the average value of the pollution load from the wastewater outlet was staggering at 32.661,60 kg/day. The average price of the pollution burden from the station after the wastewater output was produced a value of 15.945,92 kg/day. Average TSS, DO, BOD, and COD variables have already surpassed the second of class river quality. The Kaliyasa River pollution index is obtained that according to TSS, DO, BOD, and COD variables measured indicate IP Numbers in level 6, which include 6,16 of moderate pollutants. Keywords: Comparisons with Water Quality, Load Of River Pollution, Pollution Index","PeriodicalId":246413,"journal":{"name":"JURNAL PERIKANAN TROPIS","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127677374","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}
Rama Agus Mulyadi, Aprilia Syah Putri, Dona Setya, Hamidi Hamidi
As a means of transportation in the process of catching fish, ship must be owned by fishermen. The purpose of this study was to determine the durability of ship made of fiberglass material and to know when the ship run and stopped. This research was conducted for 4 months in a fishing laboratory assisted by 2 lecturers and 3 students. Students were involved in order to gain knowledge and experience in making boats made of fiberglass. With an experimental methods, data collection was done by direct observation of the design process, material testing, durability, and stability of the ship at sea. The results of this research were obtained in terms of making boats, in which it had a quite long stage starting from knowing the place where the boat was used, designing, making, and testing it in the manufacture. Thus, it is necessary to be careful during the work in order to get better results. Based on the endurance and leak tests, the boat had good resistance and did not leak, so it could be further developed.
{"title":"THE DESIGN OF FISHING BOATS MADE BY FIBERGLASS","authors":"Rama Agus Mulyadi, Aprilia Syah Putri, Dona Setya, Hamidi Hamidi","doi":"10.35308/jpt.v8i2.4591","DOIUrl":"https://doi.org/10.35308/jpt.v8i2.4591","url":null,"abstract":"As a means of transportation in the process of catching fish, ship must be owned by fishermen. The purpose of this study was to determine the durability of ship made of fiberglass material and to know when the ship run and stopped. This research was conducted for 4 months in a fishing laboratory assisted by 2 lecturers and 3 students. Students were involved in order to gain knowledge and experience in making boats made of fiberglass. With an experimental methods, data collection was done by direct observation of the design process, material testing, durability, and stability of the ship at sea. The results of this research were obtained in terms of making boats, in which it had a quite long stage starting from knowing the place where the boat was used, designing, making, and testing it in the manufacture. Thus, it is necessary to be careful during the work in order to get better results. Based on the endurance and leak tests, the boat had good resistance and did not leak, so it could be further developed.","PeriodicalId":246413,"journal":{"name":"JURNAL PERIKANAN TROPIS","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124678237","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}
Spacing is one of the technical factors that affect the growth of Sargassum sp. because of its relationship with the absorption of interrelated nutrients. Differences in spacing in the cultivation of Sargassum sp. has a function to find out what distance between plants is the most appropriate so that the growth of Sargassum sp. more optimum. This is closely related to the competition of each seaweed for nutrients as food. Spacing is one of the technical factors that affect the growth of Sargassum sp. because of its relationship with the absorption of interrelated nutrients. The purpose of this study was to determine the effect of different spacing on the growth of Sargassum sp. with the basic peg method. This research was conducted in November-December 2020 in the waters of Labuhan Ijuk village, Moyo Hilir sub-district, Sumbawa Regency using an experimental method with a completely randomized design (RAL) with a maintenance period of 30 days. The results of this study showed the growth of Sargassum sp. the highest was in treatment P0 (spacing 30 cm) with an average absolute growth of 159 grams, specific growth of 3.16%, followed by P1 treatment (25 cm spacing control) with an average absolute growth of 124 grams, specific growth was 2.16% then followed by P2 treatment (20 cm spacing) with an absolute growth rate of 103 grams, specific growth averaging 2.35% and then the lowest was obtained in treatment P3 with a spacing of 15 cm with an average absolute growth value of 65 grams, specific growth 1.64% with an initial planting weight of 100 grams. Keywords: Seaweed, macro algae, aquaculture, brown algae, alginat.
{"title":"EFFECT OF PLANT DISTANCE ON THE GROWTH OF Sargassum sp. CULTURED ON BOTTOM OFF METHODS","authors":"Syarif Hidayatullah, D. Setyowati, N. Cokrowati","doi":"10.35308/jpt.v8i2.3568","DOIUrl":"https://doi.org/10.35308/jpt.v8i2.3568","url":null,"abstract":"Spacing is one of the technical factors that affect the growth of Sargassum sp. because of its relationship with the absorption of interrelated nutrients. Differences in spacing in the cultivation of Sargassum sp. has a function to find out what distance between plants is the most appropriate so that the growth of Sargassum sp. more optimum. This is closely related to the competition of each seaweed for nutrients as food. Spacing is one of the technical factors that affect the growth of Sargassum sp. because of its relationship with the absorption of interrelated nutrients. The purpose of this study was to determine the effect of different spacing on the growth of Sargassum sp. with the basic peg method. This research was conducted in November-December 2020 in the waters of Labuhan Ijuk village, Moyo Hilir sub-district, Sumbawa Regency using an experimental method with a completely randomized design (RAL) with a maintenance period of 30 days. The results of this study showed the growth of Sargassum sp. the highest was in treatment P0 (spacing 30 cm) with an average absolute growth of 159 grams, specific growth of 3.16%, followed by P1 treatment (25 cm spacing control) with an average absolute growth of 124 grams, specific growth was 2.16% then followed by P2 treatment (20 cm spacing) with an absolute growth rate of 103 grams, specific growth averaging 2.35% and then the lowest was obtained in treatment P3 with a spacing of 15 cm with an average absolute growth value of 65 grams, specific growth 1.64% with an initial planting weight of 100 grams. Keywords: Seaweed, macro algae, aquaculture, brown algae, alginat.","PeriodicalId":246413,"journal":{"name":"JURNAL PERIKANAN TROPIS","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133417794","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}
M. Thahir, M. A. Nasution, Hafinuddin Hafinuddin, Surya Bima Ridho Mutaqin
AbstractThis study uses a quantitative experimental method using a Completely Randomized Design (CRD) with 2 treatments and 3 replications. The palm fibers composite was made by following the compression test standard of SNI 03-3958-1995 and the tensile test standard of ASTM D3039. The hand lay up method is used in the manufacture of composites by applying resin to the mold with a roller brush. The compression and tensile tests were carried out using the Gotech Testing Machine (GT 7001 LC 30). The results of the compression test of the palm fiber composite 909.19 Mpa, the tensile test 10.82 Mpa, based on the test results, a comparison was made with the BKI (Indonesian Classification Bureau) standard, it is known that the fiber composite can only meet the minimum standard of compressive strength determined by BKI 100 Mpa, while the value of the tensile strength has not been able to meet the minimum standard specified by BKI 150 Mpa.Keywords: Fiberglass, palm fiber composite. compression test
{"title":"ANALISIS KEKUATAN KOMPOSIT IJUK SEBAGAI BAHAN PENGGANTI FIBERGLASS PADA KAPAL","authors":"M. Thahir, M. A. Nasution, Hafinuddin Hafinuddin, Surya Bima Ridho Mutaqin","doi":"10.35308/jpt.v8i2.4448","DOIUrl":"https://doi.org/10.35308/jpt.v8i2.4448","url":null,"abstract":"AbstractThis study uses a quantitative experimental method using a Completely Randomized Design (CRD) with 2 treatments and 3 replications. The palm fibers composite was made by following the compression test standard of SNI 03-3958-1995 and the tensile test standard of ASTM D3039. The hand lay up method is used in the manufacture of composites by applying resin to the mold with a roller brush. The compression and tensile tests were carried out using the Gotech Testing Machine (GT 7001 LC 30). The results of the compression test of the palm fiber composite 909.19 Mpa, the tensile test 10.82 Mpa, based on the test results, a comparison was made with the BKI (Indonesian Classification Bureau) standard, it is known that the fiber composite can only meet the minimum standard of compressive strength determined by BKI 100 Mpa, while the value of the tensile strength has not been able to meet the minimum standard specified by BKI 150 Mpa.Keywords: Fiberglass, palm fiber composite. compression test","PeriodicalId":246413,"journal":{"name":"JURNAL PERIKANAN TROPIS","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125587177","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}
Fitra Wira Hadinata, Inpurwanto Inpurwanto, S. Rahayu, Nabil Zurba
Shellfish have another important role, namely the role of ecology. Therefore, a deeper knowledge of the bioecology of shellfish, especially the anatomy and environmental factors, as well as the pattern of continuous scientific studies, is required. This study aims to identify and collect information on morphometric diversity.This research will be conducted for 8 (eight) months March-October 2020 in the downstream area of Sambora Village, West Kalimantan Province. Ecological studies include observations of physical, chemical, and biological parameters as well as distribution patterns of shellfish at III observation stations. Morphometric measurements are measurements of length and weight, size class distribution, density and distribution pattern.Based on the results of research, obtained 177 individuals. The morphometric characters showed a negative allometric growth pattern of 2.10. Average density ranges from 0.37-3.02 ind/m2 with the highest average density at station I and the lowest at station III. The distribution pattern of A. woodiana at stations I and II showed the same pattern, namely random with a value of 1.00 id, while at station III the distribution pattern was uniform with a value of 0.93 id.The pH value with an average of 6, DO (Dissolved oxygen) with a range of 6.4 -7.2 mg/l,. Brightness value with a range of 22-30 cm. Depth value with an average of 40-90 cm. The average current speed value is 0.20 - 0.30 (m/s). The average percentage of sand is 85-89%, the percentage of dust is 10-11%. The abundance of plankton 80-170 individuals/l.
{"title":"STUDI EKOBIOLOGI KIJING JENIS KIJING TAIWAN (Anodonta Woodiana) DI DESA SAMBORA, KABUPATEN MEMPAWAH","authors":"Fitra Wira Hadinata, Inpurwanto Inpurwanto, S. Rahayu, Nabil Zurba","doi":"10.35308/jpt.v8i2.3955","DOIUrl":"https://doi.org/10.35308/jpt.v8i2.3955","url":null,"abstract":"Shellfish have another important role, namely the role of ecology. Therefore, a deeper knowledge of the bioecology of shellfish, especially the anatomy and environmental factors, as well as the pattern of continuous scientific studies, is required. This study aims to identify and collect information on morphometric diversity.This research will be conducted for 8 (eight) months March-October 2020 in the downstream area of Sambora Village, West Kalimantan Province. Ecological studies include observations of physical, chemical, and biological parameters as well as distribution patterns of shellfish at III observation stations. Morphometric measurements are measurements of length and weight, size class distribution, density and distribution pattern.Based on the results of research, obtained 177 individuals. The morphometric characters showed a negative allometric growth pattern of 2.10. Average density ranges from 0.37-3.02 ind/m2 with the highest average density at station I and the lowest at station III. The distribution pattern of A. woodiana at stations I and II showed the same pattern, namely random with a value of 1.00 id, while at station III the distribution pattern was uniform with a value of 0.93 id.The pH value with an average of 6, DO (Dissolved oxygen) with a range of 6.4 -7.2 mg/l,. Brightness value with a range of 22-30 cm. Depth value with an average of 40-90 cm. The average current speed value is 0.20 - 0.30 (m/s). The average percentage of sand is 85-89%, the percentage of dust is 10-11%. The abundance of plankton 80-170 individuals/l.","PeriodicalId":246413,"journal":{"name":"JURNAL PERIKANAN TROPIS","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128590989","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}
Helmi Akbar, T. Faisal, S. Komariah, A. Putriningtias, M. Isma, S. Bahri, I. Iswahyudi, Amal Saber Abdel-Rahman, Esraa Elsaeed Ibrahim Ammar, M. A. Nasution
AbstractThe existence of alpheid shrimp species in Indonesia is not too much found in the latest scientific publications. Alpheid shrimp species can be used as an indicator to assess the quality of the environment in mangrove areas. The discovery of shrimp species from the Alpheid group adds to the list of biodiversity in the mangrove area of Kuala Langsa. Biodiversity of a high number of species in this group of shrimp is usually found in mangrove areas with muddy sand beaches. This is because, this type of shrimp has a habit of living in muddy areas. The living zone of this type of shrimp is almost the same location as the type of crab that is wrapped like the Scylla serrata group. Mangrove area kuala langsa although it has mangrove biodiversity that is relatively high. Kuala Langsa mangrove forests are dominated by the Rhizoporaceae group, which is a type of vegetation that is effective as a sediment trap from the direction of the river estuary while holding abrasion from the direction of the sea. In the current year there is also a condition of decrease in the number of large trees. This is caused by the harvest of mangrove wood to produce charcoal for fuel purposes. This condition will slowly make the function of the ecosystem decrease. Where the role of ecosystems provide living niches for aquatic organisms is decreasing. Land clearing of certain areas of the mangrove area for physical infrastructure purposes such as the construction of restaurants, settlements, roads, small aircraft runways, reduces the ability of the region to maintain the function of its ecosystem. The next thing is the ecological pressure for aquatic biota that has living niches in mangrove areas.Keyword: alpheid shrimp, alpheus, mangrove, ecosystem, kuala langsa, aceh
{"title":"FIRST REPORT: EXISTENCE OF ALPHEID SHRIMP (Alpheus lobidens De Haan 1849) IN MANGROVE ECOSYSTEM OF KUALA LANGSA, ACEH, INDONESIA","authors":"Helmi Akbar, T. Faisal, S. Komariah, A. Putriningtias, M. Isma, S. Bahri, I. Iswahyudi, Amal Saber Abdel-Rahman, Esraa Elsaeed Ibrahim Ammar, M. A. Nasution","doi":"10.35308/jpt.v8i2.5944","DOIUrl":"https://doi.org/10.35308/jpt.v8i2.5944","url":null,"abstract":"AbstractThe existence of alpheid shrimp species in Indonesia is not too much found in the latest scientific publications. Alpheid shrimp species can be used as an indicator to assess the quality of the environment in mangrove areas. The discovery of shrimp species from the Alpheid group adds to the list of biodiversity in the mangrove area of Kuala Langsa. Biodiversity of a high number of species in this group of shrimp is usually found in mangrove areas with muddy sand beaches. This is because, this type of shrimp has a habit of living in muddy areas. The living zone of this type of shrimp is almost the same location as the type of crab that is wrapped like the Scylla serrata group. Mangrove area kuala langsa although it has mangrove biodiversity that is relatively high. Kuala Langsa mangrove forests are dominated by the Rhizoporaceae group, which is a type of vegetation that is effective as a sediment trap from the direction of the river estuary while holding abrasion from the direction of the sea. In the current year there is also a condition of decrease in the number of large trees. This is caused by the harvest of mangrove wood to produce charcoal for fuel purposes. This condition will slowly make the function of the ecosystem decrease. Where the role of ecosystems provide living niches for aquatic organisms is decreasing. Land clearing of certain areas of the mangrove area for physical infrastructure purposes such as the construction of restaurants, settlements, roads, small aircraft runways, reduces the ability of the region to maintain the function of its ecosystem. The next thing is the ecological pressure for aquatic biota that has living niches in mangrove areas.Keyword: alpheid shrimp, alpheus, mangrove, ecosystem, kuala langsa, aceh","PeriodicalId":246413,"journal":{"name":"JURNAL PERIKANAN TROPIS","volume":"288 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125030121","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}
Nafsul Mutmainnah, Iis Nur Asyiah, Ika Lia Novenda
Bawean Island is located in the middle of the Java Sea, about 150 km north of Gresik. The name Bawean was taken from the Sanskrit which means there is sunlight. The Bawean people are acculturation from several ethnic groups of Java, Madura, Kalimantan, Sulawesi and Sumatera including their culture and language. The majority of Bawean residents work as fishermen. Bawean Island fishermen utilize marine resources to meet the needs of their family by using knowledge that has been obtained from previous generations. The purpose of this study was to determine the use of traditional fishing gear and fishing strategies used by fishing communities in Bawean Island. The research method used was direct observation, and sampling using Purposive Sampling and Snowball Sampling. The results showed that the fishing gears used by Bawean Island fishermen were kareket (waring), pajeng (payang), jhering cursor (ring net), rompon (bubu), jhering pemhir (drift gill net), payimbek rentengan (drag fishing), gerany Panyimbek (drag fishing line), panceng (fishing line). These fishing gears are very environmentally friendly because the usage does not damage the seabed ecosystem. Each fishing gear has its own characteristics, so that different fishing gear will result in different fishing catch
{"title":"PEMANFAATAN ALAT TANGKAP IKAN TRADISIONAL OLEH NELAYAN PULAU BAWEAN KABUPATEN GRESIK","authors":"Nafsul Mutmainnah, Iis Nur Asyiah, Ika Lia Novenda","doi":"10.35308/JPT.V8I1.1923","DOIUrl":"https://doi.org/10.35308/JPT.V8I1.1923","url":null,"abstract":"Bawean Island is located in the middle of the Java Sea, about 150 km north of Gresik. The name Bawean was taken from the Sanskrit which means there is sunlight. The Bawean people are acculturation from several ethnic groups of Java, Madura, Kalimantan, Sulawesi and Sumatera including their culture and language. The majority of Bawean residents work as fishermen. Bawean Island fishermen utilize marine resources to meet the needs of their family by using knowledge that has been obtained from previous generations. The purpose of this study was to determine the use of traditional fishing gear and fishing strategies used by fishing communities in Bawean Island. The research method used was direct observation, and sampling using Purposive Sampling and Snowball Sampling. The results showed that the fishing gears used by Bawean Island fishermen were kareket (waring), pajeng (payang), jhering cursor (ring net), rompon (bubu), jhering pemhir (drift gill net), payimbek rentengan (drag fishing), gerany Panyimbek (drag fishing line), panceng (fishing line). These fishing gears are very environmentally friendly because the usage does not damage the seabed ecosystem. Each fishing gear has its own characteristics, so that different fishing gear will result in different fishing catch","PeriodicalId":246413,"journal":{"name":"JURNAL PERIKANAN TROPIS","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114262973","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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