Asian Journal of Aquatic Sciences最新文献

HYDROLYSATE CHARACTERISTICS OF BERUNOK SEA CUCUMBER (Paracaudina australis) AND TOTAL AMINO ACID USING PEPSIN ENZYMES 利用胰蛋白酶分析贝鲁诺克海黄瓜（Paracaudina australis）的淀粉特性和总氨基酸

Asian Journal of Aquatic Sciences Pub Date : 2024-04-04 DOI: 10.31258/ajoas.7.1.156-160

Bella Billiant J Ananta Kembaren, R. Karnila, Bustari Hasan

{"title":"HYDROLYSATE CHARACTERISTICS OF BERUNOK SEA CUCUMBER (Paracaudina australis) AND TOTAL AMINO ACID USING PEPSIN ENZYMES","authors":"Bella Billiant J Ananta Kembaren, R. Karnila, Bustari Hasan","doi":"10.31258/ajoas.7.1.156-160","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.156-160","url":null,"abstract":"Berunok sea cucumber has a nutritional content that can be utilized as a functional food ingredient. This study determined the characteristics of berunok sea cucumber hydrolysate (Paracaudina australis) and the type and level of total amino acids. This research was conducted using experimental methods, with a Non-Factor Complete Randomized Design consisting of 3 levels of enzyme concentration treatment (1%, 2%, and 3%) with three replicates. In this study, the parameters tested were the proximate content of flour and hydrolysate of berunok and the type and content of total amino acids. The results showed that the chemical composition of berunok flour was water 11,40% (dw), ash 10,82% (dw), protein 68,21% (dw), fat 6,53% (dw), and carbohydrate by the difference of 14,43% (dw). The best treatment for preparing berunok protein hydrolysate using pepsin enzyme is 2% pepsin enzyme concentration. The proximate of berunok protein hydrolysate is water 6.87% (dw), ash 8.45% (dw), protein 80,59% (dw), and fat 2,86% (dw). The results of the identification of types and levels of total amino acids found 17 kinds of amino acids with a total of 16.524% in hydrolysate berunok.","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140741709","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}

引用次数: 0

POTENTIAL AND LEVEL UTILIZATION OF SKIPJACK (Katsuwonus pelamis) IN THE BUNGUS OCEAN FISHING PORT WEST SUMATERA PROVINCE 西苏门答腊省鲣鱼（Katsuwonus pelamis）在梭子鱼海洋渔港的潜力和利用水平

Asian Journal of Aquatic Sciences Pub Date : 2024-04-04 DOI: 10.31258/ajoas.7.1.161-168

Arthur Brown, Rina Ade Citra Purba

引用次数: 0

BIOMASS PRODUCTION AND SINGLE-CELL PROTEIN (SCP) ENCAPSULATION OF BACTERIA Bacillus cereus SN7 蜡样芽孢杆菌 SN7 的生物质生产和单细胞蛋白 (SCP) 凝聚

Asian Journal of Aquatic Sciences Pub Date : 2024-04-04 DOI: 10.31258/ajoas.7.1.148-155

Ibnu Mukramin, F. Feliatra, Afrizal Tanjung

引用次数: 0

GASTROPOD DIVERSITY AS A BIO-INDICATOR OF AQUATIC POLLUTION IN SIRONJONG GADANG ISLAND PESISIR SELATAN DISTRICT 作为水生污染生物指标的腹足纲动物多样性在西隆宗加当岛佩西西尔色拉丹地区的影响

Asian Journal of Aquatic Sciences Pub Date : 2024-04-03 DOI: 10.31258/ajoas.7.1.141-147

Usia Xoros Sihotang, Afrizal Tanjung, D. Yoswaty

{"title":"GASTROPOD DIVERSITY AS A BIO-INDICATOR OF AQUATIC POLLUTION IN SIRONJONG GADANG ISLAND PESISIR SELATAN DISTRICT","authors":"Usia Xoros Sihotang, Afrizal Tanjung, D. Yoswaty","doi":"10.31258/ajoas.7.1.141-147","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.141-147","url":null,"abstract":"This study aims to determine the diversity of gastropods and water conditions on Sironjong Gadang Island, Pesisir Selatan Regency. This research was conducted in August 2022 in the waters of Sironjong Gadang Island and the Marine Biology Laboratory and Marine Chemistry Laboratory of the Department of Marine Science, Universitas Riau. The method used in this research is the survey method, which is direct observation of the research area and sampling and measurement of water quality parameters in the field. The results of the study found gastropod species consisting of 4 (four) families, 4 (four) genera, and 8 (eight) species. The diversity value (H') was at a moderate level of diversity. The highest gastropod density was found at Station I, with a density value of 16.33 ind/m², and the lowest density was found at Station III, with a density value of 13.89 ind/m². The highest relative density was Monodonta labia species, with a relative density value of 27.6%, while the lowest relative density was Haustrum-scoring species, with a relative density value of 3.3%. Temperature 28-29˚C; salinity 25-27 ppt; pH 7.91-7.95; brightness 1.55-2.65 m. The sediment type at Station I was dominated by muddy gravel, Station II was dominated by sandy gravel, and Station III was defeated by sandy gravel with a total sediment organic matter content of 6.10-10.05%.","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140749944","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}

引用次数: 0

THE RELATIONSHIP BETWEEN ORGANIC MATERIAL CONTENT IN SEDIMENTS AND THE ABUNDANCE OF EPIPELIC DIATOMS IN THE INTERTIDAL ZONE OF THE WATERS OF DUMAI CITY, RIAU PROVINCE 里约省杜迈市水域潮间带沉积物中有机物含量与附生硅藻数量之间的关系

Asian Journal of Aquatic Sciences Pub Date : 2024-04-03 DOI: 10.31258/ajoas.7.1.133-140

Josua Simanjuntak, S. H. Siregar, E. Efriyeldi

{"title":"THE RELATIONSHIP BETWEEN ORGANIC MATERIAL CONTENT IN SEDIMENTS AND THE ABUNDANCE OF EPIPELIC DIATOMS IN THE INTERTIDAL ZONE OF THE WATERS OF DUMAI CITY, RIAU PROVINCE","authors":"Josua Simanjuntak, S. H. Siregar, E. Efriyeldi","doi":"10.31258/ajoas.7.1.133-140","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.133-140","url":null,"abstract":"This research was conducted in March 2023, located in Koneng Beach, Dumai City. The purpose of this study was to determine the organic matter content and abundance of epipelic diatoms vertically and to analyze the relationship between the organic matter content in sediments and the abundance of epipelic diatoms vertically in the intertidal area of Dumai City Waters. The method used is the survey method. The sampling point is determined using a purposive sampling method. Sampling of epipelic diatoms was carried out using a modified corer, which was then brought to the laboratory to identify and calculate the abundance of diatoms and the sediment samples to calculate the content of organic matter and sediment fractions. Water quality measurements accompanied sampling with a brightness value of 0.57 m, temperature of 33 °C, current speed of 0.33 m/s, salinity of 28 ppt, and pH of 8.13. The results of the analysis of organic matter are 2.55 – 13.38%. The results of the sediment fraction analysis show that the research location is dominated by sandy silt. Nineteen genera of epipelic diatoms were found in the waters of Koneng Beach, Dumai City, with abundance values between 5,291–39,983 ind/cm2. The one-way ANOVA test results obtained an average value of 0.000, meaning there is a significant difference in the abundance of epipelic diatoms between the sediment layers. The results of the linear regression test showed that the effect of sediment organic matter on the abundance of epipelic diatoms was 50.85%.","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140749191","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}

引用次数: 0

MACROZOOBENTHOS COMMUNITY STRUCTURE IN THE INTERTIDAL ZONE OF MUARA AIR HAJI VILLAGE PESISIR SELATAN REGENCY WEST SUMATERA PROVINCE 西苏门答腊省Pesisir Selatan地区Muara Air haji村潮间带大型底栖生物群落结构

Asian Journal of Aquatic Sciences Pub Date : 2024-04-03 DOI: 10.31258/ajoas.7.1.124-132

Ilham Alhadad, Afrizal Tanjung, Zulkifli Zulkifli

{"title":"MACROZOOBENTHOS COMMUNITY STRUCTURE IN THE INTERTIDAL ZONE OF MUARA AIR HAJI VILLAGE PESISIR SELATAN REGENCY WEST SUMATERA PROVINCE","authors":"Ilham Alhadad, Afrizal Tanjung, Zulkifli Zulkifli","doi":"10.31258/ajoas.7.1.124-132","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.124-132","url":null,"abstract":"Muara Air Haji Village is a coastal area with various anthropogenic activities that can disrupt the aquatic ecology, especially in the intertidal zone. Biological indicators such as macrozoobenthos are needed to provide a correct and sustainable picture of water quality. This research uses a survey method to determine macrozoobenthos' type, abundance, diversity, uniformity, dominance, and distribution pattern in the intertidal zone. Sampling was carried out using three stations, and each station consisted of three transects and three subzones comprised of the upper, middle, and lower intertidal zones using a quadrant plot measuring 1 x 1 m. The results of this research found three classes of macrozoobenthos with five species. Abundance values at each station ranged from 0.89–4.56 ind/m2, while abundance in the intertidal subzone ranged from 1.11–3.56 ind/m2. The diversity index (H') at stations I and III is 1.93 and 1.17, which means it is included in the medium diversity category, while the diversity index (H') at station II is 0.84, which means it is included in the low category, moderate distribution of individuals or non-uniform number of individuals, moderate ecological pressure and moderately polluted water stability. The uniformity index value ranges from 0.65–0.99, which means the uniformity category is balanced. At station II, macrozoobenton dominates with an index value of 0.62, while stations I and III have no dominant species with index values of 0.30 and 0.45. The distribution pattern (Id) of macrozoobenthos is clustered with a value of 3.45–4.18","PeriodicalId":495331,"journal":{"name":"Asian Journal of Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140750456","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}

引用次数: 0

ESTIMATIONS OF CARBON STORAGE AND ECONOMIC VALUE OF MANGROVE FOREST ON THE NORTH COAST OF CAWAN ISLAND, INDRAGIRI HILIR 因德拉吉里希里尔卡万岛北海岸红树林的碳储量和经济价值估算

Asian Journal of Aquatic Sciences Pub Date : 2024-04-02 DOI: 10.31258/ajoas.7.1.61-73

Tri Emrinelson, T. Warningsih

{"title":"ESTIMATIONS OF CARBON STORAGE AND ECONOMIC VALUE OF MANGROVE FOREST ON THE NORTH COAST OF CAWAN ISLAND, INDRAGIRI HILIR","authors":"Tri Emrinelson, T. Warningsih","doi":"10.31258/ajoas.7.1.61-73","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.61-73","url":null,"abstract":"Mangrove forests are important for human life and the surrounding environment, one of which is as a CO2 absorber and carbon storage. The North Coast of Cawan Island in Indragiri Hilir has a relatively good mangrove forest that is estimated to absorb and store more carbon. This study aims to (1) estimate the value of carbon storage in stands (stems), below-ground carbon (roots), litter, and sediment of mangrove forests, (2) estimate the CO2 absorption capacity of mangrove forests, and (3) estimate the economic value of absorption CO2 by mangrove forest on the North Coast of Cawan Island. The station determination method uses purposive sampling of five stations, each consisting of a transect with three plots measuring 10x10 m2. Measurement of stem and root biomass using the allometric method. Litter biomass measurement used the dry weight weighing method, and sediment carbon measurement used the Loss on Ignition (LOI) method. The result showed that average carbon storage in stems was 34.56 tons/ha, roots were 16.41 tons/ha, litter was 0.10 tons/ha, and sediment was 32.91 tons/ha. The estimated ability of mangrove forests to absorb CO2 is an average of 187.10 tons/ha or 636,450.59 tonnes for the entire North Coast of Cawan Island. The estimated economic value of mangrove forest carbon is an average of IDR 149,809,099 /ha or IDR 509,599,619,024 for the entire North Coast of Cawan Island.","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":"140752462","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}

引用次数: 0

ABUNDANCE OF MARINE DEBRIS ON PADANG AND PARIAMAN BEACHES WEST SUMATRA PROVINCE 西苏门答腊省 PADANG 和 PARIAMAN 海滩的海洋废弃物丰度

Asian Journal of Aquatic Sciences Pub Date : 2024-04-02 DOI: 10.31258/ajoas.7.1.84-87

Afni Gusmanti, S. Nedi, E. Elizal

引用次数: 0

EFFECT OF rGH HORMONE ADMINISTRATION ON PROTEASE ENZYME ACTIVITY AND RNA/DNA RATIO OF STRIPED CATFISH (Pangasianodon hypophthalmus) MAINTAINED IN SALINE MEDIA 施用 rGH 激素对盐水培养基饲养的带鱼（Pangasianodon hypophthalmus）蛋白酶活性和 RNA/DNA 比率的影响

Asian Journal of Aquatic Sciences Pub Date : 2024-04-02 DOI: 10.31258/ajoas.7.1.19-25

Mohamad Ardani Syahputra, Usman M Tang, Henni Syawal

{"title":"EFFECT OF rGH HORMONE ADMINISTRATION ON PROTEASE ENZYME ACTIVITY AND RNA/DNA RATIO OF STRIPED CATFISH (Pangasianodon hypophthalmus) MAINTAINED IN SALINE MEDIA","authors":"Mohamad Ardani Syahputra, Usman M Tang, Henni Syawal","doi":"10.31258/ajoas.7.1.19-25","DOIUrl":"https://doi.org/10.31258/ajoas.7.1.19-25","url":null,"abstract":"Striped catfish is a prevalent fish and is in great demand. Striped catfish cultivation generally uses fresh water as a living medium, but several freshwater fish commodities are starting to be developed to adapt to saline media. Harvesting striped catfish usually takes approximately 3 - 8 months. To overcome this, one way is to use growth hormone. The growth hormone currently used is Recombinant Growth Hormone (rGH). GH administration has been reported to have various effects, particularly on protein metabolism. In fish digestion, protein from feed cannot be directly absorbed but is first broken down by protease enzymes into amino acids. The physical appearance, which is the phenotype of an organism, is the result of metabolic processes in each cell that makes up the organism. This research aimed to analyze the effect of administering the rGH hormone on protease enzyme activity, RNA/DNA ratio, and growth of striped catfish maintained in saline media. The method used was experimental in the form of a Completely Randomized Design (CRD) with four treatments and three replications. Based on the results obtained during the research, it shows that Protease Enzyme Activity (U/minute) and the best RNA/DNA Ratio use a dose of 3 mg/kg with respective values of 0.75±0.24 U/minute and3.30±0.49.","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":"140751778","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}

引用次数: 0

ANALYSIS OF PRODUCTION FACTORS FOR GILLNET FISHING GEAR AT THE TECHNICAL IMPLEMENTATION UNIT (UPT) OF THE FISHERY PORT OF RIAU PROVINCE 里约省渔港技术实施单位（UPT）刺网渔具生产要素分析

Asian Journal of Aquatic Sciences Pub Date : 2024-04-02 DOI: 10.31258/ajoas.7.1.74-83

Arthur Brown, Camelia Nurul Hasanah, P. Nasution

引用次数: 0