Pub Date : 2024-04-02DOI: 10.31258/ajoas.7.1.115-123
Arthur Brown, Rezky Fadhli, Jonny Zain
This research was carried out in November 2022 in Merbau District, Meranti Islands Regency, Riau Province, to determine the sustainability status of the belat fishing gear based on ecological, social and technological aspects. The method used in this research is a survey method, while purposive sampling is used to determine respondents. Data collection was carried out through observation, interviews and documentation directly with two academics from the UNRI Faculty of Fisheries and Marine, two people from the Meranti Regency Fisheries Service, four capture fisheries entrepreneurs (traders and collectors), two fishermen group leaders, and ten fishermen. The research results show a decrease in the number of belat fishing gear every year; in 2020, the number of belat fishing gear was 65 units, and in 2022, the number of belat fishing gear was nine units. Belat fishing gear is not selective, as seen from the leverage analysis that has been carried out with a sensitivity attribute value of 40.53. Belat can catch small fish that are not yet suitable for catching. The sustainability status of belat fishing gear is seen through the attribute values of three dimensions. The sustainability index value for the ecological dimension of the belat fishing gear is 51.11, meaning it is pretty sustainable. The sustainability index value of the technological dimension in fishing using belat fishing gear is 40.53, which is classified as less sustainable. The index value of the social dimension in fishing using the belat fishing gear is 59.99, meaning it is in the reasonably sustainable category.
{"title":"SUSTAINABILITY STATUS OF BELAT FISHING TOOLS BASED ON ECOLOGICAL, TECHNOLOGICAL AND SOCIAL ASPECTS IN MERBAU DISTRICT, RIAU PROVINCE","authors":"Arthur Brown, Rezky Fadhli, Jonny Zain","doi":"10.31258/ajoas.7.1.115-123","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.115-123","url":null,"abstract":"This research was carried out in November 2022 in Merbau District, Meranti Islands Regency, Riau Province, to determine the sustainability status of the belat fishing gear based on ecological, social and technological aspects. The method used in this research is a survey method, while purposive sampling is used to determine respondents. Data collection was carried out through observation, interviews and documentation directly with two academics from the UNRI Faculty of Fisheries and Marine, two people from the Meranti Regency Fisheries Service, four capture fisheries entrepreneurs (traders and collectors), two fishermen group leaders, and ten fishermen. The research results show a decrease in the number of belat fishing gear every year; in 2020, the number of belat fishing gear was 65 units, and in 2022, the number of belat fishing gear was nine units. Belat fishing gear is not selective, as seen from the leverage analysis that has been carried out with a sensitivity attribute value of 40.53. Belat can catch small fish that are not yet suitable for catching. The sustainability status of belat fishing gear is seen through the attribute values of three dimensions. The sustainability index value for the ecological dimension of the belat fishing gear is 51.11, meaning it is pretty sustainable. The sustainability index value of the technological dimension in fishing using belat fishing gear is 40.53, which is classified as less sustainable. The index value of the social dimension in fishing using the belat fishing gear is 59.99, meaning it is in the reasonably sustainable category.","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140755235","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}
Fandi Handika Arta, M. Mubarak, Syafruddin Nasution
The potential of tuna in the waters of West Sumatra reaches 300,000 tons per year, and only 25% of its existing potential has been exploited. The existence of these fish can be determined by measuring the concentration of chlorophyll-α as an indicator of food sources in the waters and measuring sea surface temperature as an indicator of the fish environment, which can be done using remote sensing technology. This research was conducted from August 05 to September 29, 2022, using Aqua MODIS satellite imagery data. The results obtained during the study showed that the concentration of chlorophyll-α had an average of 2.01 mg/m3. The highest concentration occurred in the period 13-20 August 2022 with an average value of 3.17 mg/m3, and the lowest occurred in the period 06-13 September 2022 with an average value of 0.85 mg/m3. Sea surface temperature has a relatively similar value, which ranges from 29.5–30.8oC with an average of 30.5oC. Determination of the alleged fishing area for yellowfin tuna was carried out using the overlay technique by shading the area from chlorophyll-a criteria >0.1 mg/m3 with the sea surface temperature criteria of 29-30oC. The accuracy level of the yellowfin tuna fishing area estimation has an average accuracy of 28.7%. The highest accuracy value occurs from August 29 to September 05 2022, with a percentage of 69.8%, and the lowest occurs from August 13 to 20, 2022, with a rate of 3.9%.
{"title":"ANALYSIS OF CHLOROPHYLL-α AND SEA SURFACE TEMPERATURE DISTRIBUTION USING SATELITE IMAGE TO ESTIMATE OF FISHING ZONES FOR YELLOWFIN TUNA (Thunnus albacares) IN WEST SUMATERA PROVINCE WATERS","authors":"Fandi Handika Arta, M. Mubarak, Syafruddin Nasution","doi":"10.31258/ajoas.7.1.8-18","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.8-18","url":null,"abstract":"The potential of tuna in the waters of West Sumatra reaches 300,000 tons per year, and only 25% of its existing potential has been exploited. The existence of these fish can be determined by measuring the concentration of chlorophyll-α as an indicator of food sources in the waters and measuring sea surface temperature as an indicator of the fish environment, which can be done using remote sensing technology. This research was conducted from August 05 to September 29, 2022, using Aqua MODIS satellite imagery data. The results obtained during the study showed that the concentration of chlorophyll-α had an average of 2.01 mg/m3. The highest concentration occurred in the period 13-20 August 2022 with an average value of 3.17 mg/m3, and the lowest occurred in the period 06-13 September 2022 with an average value of 0.85 mg/m3. Sea surface temperature has a relatively similar value, which ranges from 29.5–30.8oC with an average of 30.5oC. Determination of the alleged fishing area for yellowfin tuna was carried out using the overlay technique by shading the area from chlorophyll-a criteria >0.1 mg/m3 with the sea surface temperature criteria of 29-30oC. The accuracy level of the yellowfin tuna fishing area estimation has an average accuracy of 28.7%. The highest accuracy value occurs from August 29 to September 05 2022, with a percentage of 69.8%, and the lowest occurs from August 13 to 20, 2022, with a rate of 3.9%.","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140753780","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 : 2024-04-02DOI: 10.31258/ajoas.7.1.88-93
Arthur Brown, Valentine Vanda Simamora, A. H. Yani
On Rangsang Island, many still work as fishermen or depend on the sea, especially in the southern part of Rangsang Island. Fishermen in the south part of Rangsang Island still use a lot of traditional fishing gear, such as the grinder. The polluted waters on Rangsang Island and destructive technology will impact the fishermen's fishing economy. This study aims to determine and assess the sustainability of fishing gear in terms of ecological, economic, and technological aspects in the southern part of Rangsang Island using the rapfish technique. The method used was a survey method, and the sampling used a purposive sampling technique. The analysis of the rapfish technique found that sustainability in the ecological dimension was 33.53% or less sustainable. In the economic dimension, it was 36.01% or less sustainable. In comparison, it was 76.71% sustainable in the technological dimension.
{"title":"SUSTAINABILITY STATUS OF TRAP FISHERIES IN THE SOUTHERN PART OF RANGSANG ISLAND","authors":"Arthur Brown, Valentine Vanda Simamora, A. H. Yani","doi":"10.31258/ajoas.7.1.88-93","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.88-93","url":null,"abstract":"On Rangsang Island, many still work as fishermen or depend on the sea, especially in the southern part of Rangsang Island. Fishermen in the south part of Rangsang Island still use a lot of traditional fishing gear, such as the grinder. The polluted waters on Rangsang Island and destructive technology will impact the fishermen's fishing economy. This study aims to determine and assess the sustainability of fishing gear in terms of ecological, economic, and technological aspects in the southern part of Rangsang Island using the rapfish technique. The method used was a survey method, and the sampling used a purposive sampling technique. The analysis of the rapfish technique found that sustainability in the ecological dimension was 33.53% or less sustainable. In the economic dimension, it was 36.01% or less sustainable. In comparison, it was 76.71% sustainable in the technological dimension.","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140751503","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 : 2024-04-02DOI: 10.31258/ajoas.7.1.44-51
Rina Ade Citra Purba, Arthur Brown, A. H. Yani
Krai tuna (Auxis thazard) is the most dominant catch in Sibolga Archipelago Fishing Port and has economic value, so the community widely consumes it. The magnitude of the potential of fisheries in Sibolga makes it important to analyze the stock of krai for the development and processing of the capture fisheries sector. The research method used is the survey method, the data needed is secondary data in the form of catch data and fishing effort for seven years (2016-2022), the data analysis used is the surplus production method with the Schaefer and Fox model approach, From the results of the study, it was concluded that the sustainable potential of krai using the production surplus approach method is more suitable using the Schaefer approach model because it has a low JTB of 1508 tons with a utilization rate status of 98.94% and is already in a fully-exploited condition or has reached the saturation point (catch-intensive). Utilization is almost near saturation point, so it is necessary to reduce fishing effort so that the catch remains and stock availability is maintained
{"title":"POTENTIAL AND UTILIZATION LEVEL OF KRAI TUNA (Auxis thazard) LANDED AT SIBOLGA ARCHIPELAGO FISHING PORT NORTH SUMATERA PROVINCE","authors":"Rina Ade Citra Purba, Arthur Brown, A. H. Yani","doi":"10.31258/ajoas.7.1.44-51","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.44-51","url":null,"abstract":"Krai tuna (Auxis thazard) is the most dominant catch in Sibolga Archipelago Fishing Port and has economic value, so the community widely consumes it. The magnitude of the potential of fisheries in Sibolga makes it important to analyze the stock of krai for the development and processing of the capture fisheries sector. The research method used is the survey method, the data needed is secondary data in the form of catch data and fishing effort for seven years (2016-2022), the data analysis used is the surplus production method with the Schaefer and Fox model approach, From the results of the study, it was concluded that the sustainable potential of krai using the production surplus approach method is more suitable using the Schaefer approach model because it has a low JTB of 1508 tons with a utilization rate status of 98.94% and is already in a fully-exploited condition or has reached the saturation point (catch-intensive). Utilization is almost near saturation point, so it is necessary to reduce fishing effort so that the catch remains and stock availability is maintained","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140751590","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 : 2024-04-02DOI: 10.31258/ajoas.7.1.52-60
Resty Fauziah Putri, N. Nursyirwani, U. M. Batubara
Vannamei shrimp (Litopenaeus vannamei) is a fishery commodity widely cultivated in various parts of Indonesia. The main problem often found in vannamei shrimp production is poor water quality during the rearing period. This study aims to isolate and identify E. coli contained in water, sediment, and meat of vannamei shrimp cultivated in shrimp ponds and examine its sensitivity to antibiotics. The research was conducted from March to May 2023 at the Technical Implementation Unit (UPT) Vannamei Shrimp Ponds of the Maritime Affairs and Fisheries Service, Tanjung Punak Village, Rupat Utara District, Bengkalis Regency, Riau. The survey method was used in this study. The Most Probable Number (MPN) method was employed for E. coli isolation to calculate bacterial density, and the Kirby-Bauer method was used to test bacterial sensitivity to antibiotics. Based on the identification of the six isolates carried out, it was found that only two isolates were positively identified as E. coli bacteria, namely SD C 3.1 and IP B 1.1, which were isolated from sediment and the Wastewater Treatment Plant (WWTP) pond. The diameter of the inhibition zone for sediment isolate RF01 against the antibiotic chloramphenicol was 18.75 mm, indicating intermediate sensitivity. On the other hand, WWTP isolates RF02 exhibited an inhibition zone of 17 mm for chloramphenicol, indicating medium sensitivity as well. However, it showed resistance to penicillin with a diameter of 6.5 mm and resistance to ampicillin with a diameter of 2 mm
凡纳米对虾（Litopenaeus vannamei）是印度尼西亚各地广泛养殖的一种渔业商品。凡纳米对虾生产中经常出现的主要问题是饲养期间水质较差。本研究旨在分离和鉴定虾塘养殖的凡纳滨对虾的水、沉淀物和肉中所含的大肠杆菌，并检测其对抗生素的敏感性。研究于 2023 年 3 月至 5 月在廖内省 Bengkalis 县 Rupat Utara 区 Tanjung Punak 村海洋事务和渔业局凡纳美对虾池塘技术实施单位 (UPT) 进行。本研究采用了调查法。在分离大肠杆菌时，采用了最大可能数 (MPN) 法计算细菌密度，并采用柯比鲍尔法测试细菌对抗生素的敏感性。根据对 6 个分离物进行的鉴定，发现只有两个分离物被确定为大肠杆菌，即 SD C 3.1 和 IP B 1.1，它们分别从沉积物和污水处理厂池塘中分离出来。沉积物分离物 RF01 对抗生素氯霉素的抑菌区直径为 18.75 毫米，表明其敏感性处于中等水平。另一方面，污水处理厂分离物 RF02 对氯霉素的抑制区直径为 17 毫米，表明也具有中等敏感性。不过，它对青霉素的抗药性直径为 6.5 毫米，对氨苄西林的抗药性直径为 2 毫米。
{"title":"ISOLATION OF Escherichia coli FROM VANAME SHRIMP (Litopenaeus vannamei) POND AND THE SENSITIVITY TOWARD ANTIBIOTICS","authors":"Resty Fauziah Putri, N. Nursyirwani, U. M. Batubara","doi":"10.31258/ajoas.7.1.52-60","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.52-60","url":null,"abstract":"Vannamei shrimp (Litopenaeus vannamei) is a fishery commodity widely cultivated in various parts of Indonesia. The main problem often found in vannamei shrimp production is poor water quality during the rearing period. This study aims to isolate and identify E. coli contained in water, sediment, and meat of vannamei shrimp cultivated in shrimp ponds and examine its sensitivity to antibiotics. The research was conducted from March to May 2023 at the Technical Implementation Unit (UPT) Vannamei Shrimp Ponds of the Maritime Affairs and Fisheries Service, Tanjung Punak Village, Rupat Utara District, Bengkalis Regency, Riau. The survey method was used in this study. The Most Probable Number (MPN) method was employed for E. coli isolation to calculate bacterial density, and the Kirby-Bauer method was used to test bacterial sensitivity to antibiotics. Based on the identification of the six isolates carried out, it was found that only two isolates were positively identified as E. coli bacteria, namely SD C 3.1 and IP B 1.1, which were isolated from sediment and the Wastewater Treatment Plant (WWTP) pond. The diameter of the inhibition zone for sediment isolate RF01 against the antibiotic chloramphenicol was 18.75 mm, indicating intermediate sensitivity. On the other hand, WWTP isolates RF02 exhibited an inhibition zone of 17 mm for chloramphenicol, indicating medium sensitivity as well. However, it showed resistance to penicillin with a diameter of 6.5 mm and resistance to ampicillin with a diameter of 2 mm","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140751866","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 : 2024-04-02DOI: 10.31258/ajoas.7.1.105-114
Rahma Dani, Arthur Brown, P. Nasution
Sondong fishing gear is one of the dominant fishing gear used by fishermen in the UPT Fisheries port of Riau Province Dumai City, which, when operated, can scrape to the bottom of the waters. The specifications of sondong fishing gear affect the catch. This study aimed to determine the composition of catches based on type, length, and weight and explain the level of environmental friendliness of sondong fishing gear that refers to the FAO 1995 CCRF criteria and Taeran 2014 subcriteria. The method used in this research is a survey method, which is conducted by conducting interviews and collecting data directly in the field, then analyzing it using descriptive statistics. The results showed that the composition of the main catch was white shrimp (Penaeus merguiensis), red prawn (P.monodon), and kelong shrimp (P. indicus). At the same time, the bycatch was white pomfret (Pampus argenteus), gulamah (Pseudocienna amovensis), gangetic anchovy (Thryssa mystax), malung (Muraenesox cinereus), stingray (Dasyatis sp), and crab (Portunus pelagicus). The environmentally friendly level of sondong fishing gear, with a value of 16.43 from the interviews with 23 respondents using 8 criteria, states that sondong fishing gear is a category of fishing gear that is not environmentally friendly.
{"title":"CATCH COMPOSITION AND ENVIRONMENTAL FRIENDLINESS LEVEL OF SONDONG FISHING GEAR LANDED AT THE FISHERY HARBOR OF RIAU PROVINCE","authors":"Rahma Dani, Arthur Brown, P. Nasution","doi":"10.31258/ajoas.7.1.105-114","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.105-114","url":null,"abstract":"Sondong fishing gear is one of the dominant fishing gear used by fishermen in the UPT Fisheries port of Riau Province Dumai City, which, when operated, can scrape to the bottom of the waters. The specifications of sondong fishing gear affect the catch. This study aimed to determine the composition of catches based on type, length, and weight and explain the level of environmental friendliness of sondong fishing gear that refers to the FAO 1995 CCRF criteria and Taeran 2014 subcriteria. The method used in this research is a survey method, which is conducted by conducting interviews and collecting data directly in the field, then analyzing it using descriptive statistics. The results showed that the composition of the main catch was white shrimp (Penaeus merguiensis), red prawn (P.monodon), and kelong shrimp (P. indicus). At the same time, the bycatch was white pomfret (Pampus argenteus), gulamah (Pseudocienna amovensis), gangetic anchovy (Thryssa mystax), malung (Muraenesox cinereus), stingray (Dasyatis sp), and crab (Portunus pelagicus). The environmentally friendly level of sondong fishing gear, with a value of 16.43 from the interviews with 23 respondents using 8 criteria, states that sondong fishing gear is a category of fishing gear that is not environmentally friendly.","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140753261","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 : 2024-04-02DOI: 10.31258/ajoas.7.1.94-104
Febi Betania Melas, M. Mubarak, R. Rifardi
The Kampar River Estuary is the main river in Riau province, which empties into the Malacca Strait and has a unique potential for research. The characteristics of the Kampar River Estuary are concurrent and have high tidal elevations, resulting in the occurrence of a Tidal Bore, which is referred to as Bono. The impact of sedimentation is generally quite detrimental, namely the siltation in several places, such as the waters of the Kampar River Estuary, which are dense areas of human activity. This study aimed to determine the relationship between hydrodynamic patterns, suspended solids' distribution pattern, and the concentration value of suspended solids distribution in the Kampar River estuary. This research method is surveyed and discussed descriptively. Current patterns affect the distribution of sediments in the Kampar River estuary. The TSS distribution pattern tends to follow the same direction as the movement of tidal currents where, during high tide, it tends to lead to the southwest of the Kampar River estuary, while during low tide tends to lead to the northeast and northwest, it this is because, in the Kampar River estuary, there is an island that makes the mouth of the Kampar River estuary V-shaped. Between hydrodynamic patterns and TSS distribution patterns, there is a moderate negative relationship (r = 0.50), which means that there is a significant influence between hydro patterns and TSS distribution patterns in the waters of the Kampar River estuary, between hydrodynamic patterns and TSS distribution patterns in the waters of the Kampar River estuary. The lowest value of TSS concentration in the waters of the Kampar River Estuary at high tide to low tide is Station 7, with a range of 102 mg/L, and the highest value at Stations 3, 4, and 9. At station 3, there are values ranging from 1756 mg/L; at station 4, there are values ranging from 2823 mg/L; and at station 9, there are values ranging from 1269 mg/L; the high concentration of TSS results in low brightness in the study area.
{"title":"DISTRIBUTION PATTERN OF TOTAL SUSPENDED SOLIDS (TSS) IN KAMPAR RIVER ESTUARY, PELALAWAN REGENCY, RIAU PROVINCE","authors":"Febi Betania Melas, M. Mubarak, R. Rifardi","doi":"10.31258/ajoas.7.1.94-104","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.94-104","url":null,"abstract":"The Kampar River Estuary is the main river in Riau province, which empties into the Malacca Strait and has a unique potential for research. The characteristics of the Kampar River Estuary are concurrent and have high tidal elevations, resulting in the occurrence of a Tidal Bore, which is referred to as Bono. The impact of sedimentation is generally quite detrimental, namely the siltation in several places, such as the waters of the Kampar River Estuary, which are dense areas of human activity. This study aimed to determine the relationship between hydrodynamic patterns, suspended solids' distribution pattern, and the concentration value of suspended solids distribution in the Kampar River estuary. This research method is surveyed and discussed descriptively. Current patterns affect the distribution of sediments in the Kampar River estuary. The TSS distribution pattern tends to follow the same direction as the movement of tidal currents where, during high tide, it tends to lead to the southwest of the Kampar River estuary, while during low tide tends to lead to the northeast and northwest, it this is because, in the Kampar River estuary, there is an island that makes the mouth of the Kampar River estuary V-shaped. Between hydrodynamic patterns and TSS distribution patterns, there is a moderate negative relationship (r = 0.50), which means that there is a significant influence between hydro patterns and TSS distribution patterns in the waters of the Kampar River estuary, between hydrodynamic patterns and TSS distribution patterns in the waters of the Kampar River estuary. The lowest value of TSS concentration in the waters of the Kampar River Estuary at high tide to low tide is Station 7, with a range of 102 mg/L, and the highest value at Stations 3, 4, and 9. At station 3, there are values ranging from 1756 mg/L; at station 4, there are values ranging from 2823 mg/L; and at station 9, there are values ranging from 1269 mg/L; the high concentration of TSS results in low brightness in the study area.","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140753812","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 : 2024-04-02DOI: 10.31258/ajoas.7.1.26-32
Anggie Sukma Dewi, S. Nedi, Bintal Amin
The study was conducted in December 2022 in the Dumai River Estuary and Dumai City Mesjid River Estuary, Riau Province. The purpose of this study is to determine the amount and type of garbage that enters the sea through the estuary of the Dumai River and the Mesjid River, the difference between the amount and type of waste, and the difference between days from the garbage contained in the estuary of the Dumai River and the Mesjid River in Dumai City. The research method used is a direct survey method in the field, where data collection is carried out directly at low tide using a net stretched at the mouth of the river so that garbage is collected and trapped following the river's flow into the net. Based on the research conducted, it was found that the types of waste trapped were plastic, foamy plastic, cloth, paper, rubber, and wood. The amount of input and composition of waste in two weeks to the mouth of the Dumai River was 28,26 kg in the first week and 30,64 kg in the second week, while in the estuary of the Mesjid River, it was less, namely the first week as much as 20,59 kg, and in the second week as much as 19,44 kg. The difference between the amount and type of waste contained in the Dumai River and the Mesjid River for two weeks found that plastic waste occupied the most significant amount, namely 30,43 kg with a composition of 51,55% and 49,71 kg with a composition of 49,71% based on total waste input. The difference in waste input based on the day at the mouth of the Dumai River and the highest Mesjid River is found on Sunday, namely at the mouth of the Dumai River with a total waste of 27,79 kg and at the mouth of the Mesjid River with a total of 16,67 kg
{"title":"INPUT OF DOMESTIC WASTE IN THE ESTUARY OF DUMAI RIVER AND MESJID RIVER INTO THE RUPAT STRAIT WATERS","authors":"Anggie Sukma Dewi, S. Nedi, Bintal Amin","doi":"10.31258/ajoas.7.1.26-32","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.26-32","url":null,"abstract":"The study was conducted in December 2022 in the Dumai River Estuary and Dumai City Mesjid River Estuary, Riau Province. The purpose of this study is to determine the amount and type of garbage that enters the sea through the estuary of the Dumai River and the Mesjid River, the difference between the amount and type of waste, and the difference between days from the garbage contained in the estuary of the Dumai River and the Mesjid River in Dumai City. The research method used is a direct survey method in the field, where data collection is carried out directly at low tide using a net stretched at the mouth of the river so that garbage is collected and trapped following the river's flow into the net. Based on the research conducted, it was found that the types of waste trapped were plastic, foamy plastic, cloth, paper, rubber, and wood. The amount of input and composition of waste in two weeks to the mouth of the Dumai River was 28,26 kg in the first week and 30,64 kg in the second week, while in the estuary of the Mesjid River, it was less, namely the first week as much as 20,59 kg, and in the second week as much as 19,44 kg. The difference between the amount and type of waste contained in the Dumai River and the Mesjid River for two weeks found that plastic waste occupied the most significant amount, namely 30,43 kg with a composition of 51,55% and 49,71 kg with a composition of 49,71% based on total waste input. The difference in waste input based on the day at the mouth of the Dumai River and the highest Mesjid River is found on Sunday, namely at the mouth of the Dumai River with a total waste of 27,79 kg and at the mouth of the Mesjid River with a total of 16,67 kg","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140751264","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 : 2024-04-02DOI: 10.31258/ajoas.7.1.33-43
Zela Azmiada, E. Elizal, Aras Mulyadi
This research was carried out in February-March 2023 in the West Sumatra waters. It aimed to determine the variability of sea surface temperature, rainfall intensity, wind direction, and speed in the West Sumatra waters. Sea surface temperatures were taken from three stations, namely: in the coastal waters of Pariaman City, Padang-Pariaman Regency, and Bungus, Padang. The survey method was used, which was directly observed in the field. The results showed that the Sea Surface Temperature of the study areas ranged from 29.25oC-30.28oC, while the rainfall went from 211.97-499.89 mm, and the dominant speed was between 0.50-2.10 m/s. The correlation analysis between rainfall and sea surface temperatures in Station 1 yielded an "r" value of 0.871, a powerful correlation category, and the determination coefficient (R2) was 0.579 or 57.9% during the western season. In the east season, the "r" value was 0.321, in the moderate correlation category, and the determination coefficient was 0.103 or 10.3%. At Station 2, the correlation coefficient (r) was 0.788, a powerful correlation category, and the determination coefficient (R2) was 0.622 or 62.2% during the western season. In the east season, the "r" value was 0.699, a strong correlation category, and the determination coefficient was 0.488 or 48.8%. At Station 3, the "r" value was 0.688, a strong correlation category, and the determination coefficient was 0.477 or 47.7% during the western season. In the east season, the "r" value was 0.743, a strong correlation category, and the determination coefficient was 0.579 or 57.9%
{"title":"THE RELATIONSHIP OF THE DISTRIBUTION OF SEA SURFACE TEMPERATURE WITH RAINFALL AND WIND IN THE WATERS OF WEST SUMATRA","authors":"Zela Azmiada, E. Elizal, Aras Mulyadi","doi":"10.31258/ajoas.7.1.33-43","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.33-43","url":null,"abstract":"This research was carried out in February-March 2023 in the West Sumatra waters. It aimed to determine the variability of sea surface temperature, rainfall intensity, wind direction, and speed in the West Sumatra waters. Sea surface temperatures were taken from three stations, namely: in the coastal waters of Pariaman City, Padang-Pariaman Regency, and Bungus, Padang. The survey method was used, which was directly observed in the field. The results showed that the Sea Surface Temperature of the study areas ranged from 29.25oC-30.28oC, while the rainfall went from 211.97-499.89 mm, and the dominant speed was between 0.50-2.10 m/s. The correlation analysis between rainfall and sea surface temperatures in Station 1 yielded an \"r\" value of 0.871, a powerful correlation category, and the determination coefficient (R2) was 0.579 or 57.9% during the western season. In the east season, the \"r\" value was 0.321, in the moderate correlation category, and the determination coefficient was 0.103 or 10.3%. At Station 2, the correlation coefficient (r) was 0.788, a powerful correlation category, and the determination coefficient (R2) was 0.622 or 62.2% during the western season. In the east season, the \"r\" value was 0.699, a strong correlation category, and the determination coefficient was 0.488 or 48.8%. At Station 3, the \"r\" value was 0.688, a strong correlation category, and the determination coefficient was 0.477 or 47.7% during the western season. In the east season, the \"r\" value was 0.743, a strong correlation category, and the determination coefficient was 0.579 or 57.9%","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140754613","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}
Debris has long been a worrying problem, especially in the marine environment. Human activities and marine tourism activities cause coral reef ecosystem damage. The research was carried out in June - September 2022 to determine the type and abundance of marine debris, lifeforms, and condition of coral cover, as well as the relationship between the abundance of marine debris and coral cover on Pasumpahan Island, West Sumatra. The research method used was a survey, and the data obtained was analyzed descriptively. The research location was divided into three observation stations by placing three transects at each station. Based on the research results, six types of marine waste were found, with abundance ranging from 0.01 to 0.085 units/m2. The coral lifeforms found are Acropora branching, Acropora encrusting, Acropora submassive, Coral encrusting, Coral foliose, Coral millepora, Coral mushroom, and Coral massive, with a percentage of live coral cover ranging from 1.00-36.48%. A strong negative relationship exists between the abundance of marine debris and the percentage of coral cover in Pasumpahan Island, West Sumatra
{"title":"TYPES AND ABUNDANCE OF MARINE DEBRIS IN THE CORAL REEF ECOSYSTEM OF PASUMPAHAN ISLAND, WEST SUMATRA","authors":"Lulu Lyana Hanifah, Bintal Amin, Syafruddin Nasution","doi":"10.31258/ajoas.6.3.469-477","DOIUrl":"https://doi.org/10.31258/ajoas.6.3.469-477","url":null,"abstract":"Debris has long been a worrying problem, especially in the marine environment. Human activities and marine tourism activities cause coral reef ecosystem damage. The research was carried out in June - September 2022 to determine the type and abundance of marine debris, lifeforms, and condition of coral cover, as well as the relationship between the abundance of marine debris and coral cover on Pasumpahan Island, West Sumatra. The research method used was a survey, and the data obtained was analyzed descriptively. The research location was divided into three observation stations by placing three transects at each station. Based on the research results, six types of marine waste were found, with abundance ranging from 0.01 to 0.085 units/m2. The coral lifeforms found are Acropora branching, Acropora encrusting, Acropora submassive, Coral encrusting, Coral foliose, Coral millepora, Coral mushroom, and Coral massive, with a percentage of live coral cover ranging from 1.00-36.48%. A strong negative relationship exists between the abundance of marine debris and the percentage of coral cover in Pasumpahan Island, West Sumatra","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139598157","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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