Journal of Aquaculture Research and Development最新文献_第2页

Performance of Aquaponics Technologies in the Albertine Region, Western Uganda 水培技术在乌干达西部艾伯丁地区的表现

Journal of Aquaculture Research and Development Pub Date : 2021-01-01 DOI: 10.35248/2155-9546.21.12.636

Kiweewa Bernard

引用次数: 0

Determinants of Fish Market Supply in the Case of Lake Hawassa, Sidama National Regional State, Ethiopia 以埃塞俄比亚西达马民族地区州哈瓦萨湖为例，鱼市场供应的决定因素

Journal of Aquaculture Research and Development Pub Date : 2021-01-01 DOI: 10.35248/2155-9546.21.12.650

Tekalign Tuluka, Ketema Bekele, Kumilachew Alamerie

引用次数: 0

Editorial Note on Photosynthetic Organisms in the Ocean 关于海洋光合生物的编者按

Journal of Aquaculture Research and Development Pub Date : 2021-01-01 DOI: 10.35248/2155-9546.21.12.654

Rakshitha Kotha

引用次数: 0

Effects of Partial Replacement of Fishmeal by Locally Available Ingredients on Growth Performance and Feed Utilization Efficiency of Nile Tilapia, Oreochromis niloticus 当地原料部分替代鱼粉对尼罗罗非鱼生长性能和饲料利用效率的影响

Journal of Aquaculture Research and Development Pub Date : 2021-01-01 DOI: 10.35248/2155-9546.21.12.644

Teshome Belay Eshete, K. B. Workagegn, Natarajan Pavanasam

{"title":"Effects of Partial Replacement of Fishmeal by Locally Available Ingredients on Growth Performance and Feed Utilization Efficiency of Nile Tilapia, Oreochromis niloticus","authors":"Teshome Belay Eshete, K. B. Workagegn, Natarajan Pavanasam","doi":"10.35248/2155-9546.21.12.644","DOIUrl":"https://doi.org/10.35248/2155-9546.21.12.644","url":null,"abstract":"The present study was aimed at evaluating the effects of partial replacement of fishmeal with locally available feed ingredients on growth performance, feed utilization efficiency body composition and apparent digestibility coefficient of protein (ADCp) of Nile tilapia. For this purpose, seven experimental diets were prepared using 0%, 10% and 20% Jatropha, Alfalfa and Brewery waste as partial replacement of fishmeal. Healthy mixed-sex Nile tilapia with an average body weight of 6.5 ± 0.56 g were collected from Ziway Fish and Other Aquatic Life Research Center and stocked in fiberglass plastic tanks in triplicates at a stocking density of 20 fish per tank. The fish were fed three times a day with a control diet for one week and then with experimental diets for a period of four months at a rate of 3-6% body weight of fish. For ADCp studies, fish were reared for 20 days and were fed with control and test diets having an internal marker. Data were collected twice a month. The result showed that the fish fed with control diet,10%Jatropha, 10% Alfalfa and 10% and 20% Brewery waste based diets showed significantly better final body weight (28.7-30.0 g) specific growth rates (1.39-1.47%/day),feed conversion ratio (1.44-1.56) and protein utilization efficiency (0.60-0.66) than the fish fed with 20% Jatropha and Alfalfa based diets (23.8-26.0 g for final body weight, 1.25-1.33%/day for specific growth rate, 1.95-1.97 for food conversion ratio and 0.49-0.54 for protein utilization efficiency). The final survival rates of the experimental fish (73.3-86.6%) did not differ significantly (P>0.05) among feeding treatments. In conclusion, the fish meal can be replaced using the three ingredients up to 10% without negative effects on the growth and feed utilization of Nile tilapia.","PeriodicalId":15243,"journal":{"name":"Journal of Aquaculture Research and Development","volume":"12 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87780576","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

Design Characteristics and Specifications of Gill Net Operated Along the Lower Stretches of Vembanad Wetlands, Kerala, India 印度喀拉拉邦文班纳德湿地下游刺网的设计特点和规格

Journal of Aquaculture Research and Development Pub Date : 2021-01-01 DOI: 10.35248/2155-9546.21.12.649

Ajay Vs, R. AmruthaKrishnan

{"title":"Design Characteristics and Specifications of Gill Net Operated Along the Lower Stretches of Vembanad Wetlands, Kerala, India","authors":"Ajay Vs, R. AmruthaKrishnan","doi":"10.35248/2155-9546.21.12.649","DOIUrl":"https://doi.org/10.35248/2155-9546.21.12.649","url":null,"abstract":"Gill net (Locally called odakku vala) design variation, operational techniques, catch composition and selectivity analysis in Vembanad wetland, Kerala was examined between January 2020 to June 2021. Netting materials used for gill net construction in Vembanad Lake were monofilament, multifilament Nylon (polyamide). The Gill net length was 25-55 m with a hung depth of 2-3 m. Gill net was highly species specific and showed selectivity for shallow water species. Its durability ranged from 3.5 months to 2 years depending on the netting material and the environmental conditions where it is being operated. Gill net fishery is one of the main types of artisanal fishery practiced occupationally by the fishermen community of Kerala. The region so far is untouched with the introduction of mechanized fishing apart from small traditionalized improvements. The Gill net was used to catch the fishes of marketable size, small fingerlings which were either used as bait or dried. Instead of using lead or aluminium needles as sinkers many of them were used to carry normal electric wire without copper string inside which reduce their cost of purchase.","PeriodicalId":15243,"journal":{"name":"Journal of Aquaculture Research and Development","volume":"102 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80633796","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

Vaname Shrimp Cultivation (Litopenaeus vannamei) on High Stocking Densities in Controlled Ponds 控制池塘高密度放养凡纳滨对虾(Litopenaeus vannamei

Journal of Aquaculture Research and Development Pub Date : 2020-01-01 DOI: 10.35248/2155-9546.19.10.583

A. G. Tantu, Suryawati Salam, Muhammad Ishak

{"title":"Vaname Shrimp Cultivation (Litopenaeus vannamei) on High Stocking Densities in Controlled Ponds","authors":"A. G. Tantu, Suryawati Salam, Muhammad Ishak","doi":"10.35248/2155-9546.19.10.583","DOIUrl":"https://doi.org/10.35248/2155-9546.19.10.583","url":null,"abstract":"Efforts to increase the productivity of ponds can be done by increasing stocking densities accompanied by providing excellent input and adequate technological support. Three stocking densities are 750; 1,000; and 1,250 individu/ m2, applied to ponds with an area of 1,600 m2 with water depth of 2.0 m, equipped with aeration systems in the form of windmills and root blowers, submersible pumps, automatic feeders, central drain and collector drain as well as wastewater treatment plants. The capacity of the aeration system is 500 kg of shrimp/HP biomass. Shrimp kept for 110 days. The results showed that the stocking density applied resulted in a final shrimp weight which was relatively the same range 15.50-16.45 (15.60 ± 0.40) g/individual with a daily growth value of 0.165-0.185 (0.17 ± 0.01) g/day. The production obtained is 13,714 kg; 18,285 kg; and 21,942 kg. Value of feed conversion ratio 1.42, 1.39, 1.54 and electricity needs 3.21, 2.53, 2.42 kw/kg of shrimp and 2.25 water requirements, 1.65, 1.63 m3/kg shrimp. The lowest shrimp production cost is IDR. 30,526/kg of shrimp on a stocking density of 1,000 individu/ m2 with an operating profit of IDR 585,142,857.14/year. The stocking density of 1,000 individu/m2 produces better performance, so it is recommended to be a reference for high stocking densities for vaname shrimp farming.","PeriodicalId":15243,"journal":{"name":"Journal of Aquaculture Research and Development","volume":"10 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89600045","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: 3

The Effects of Rabbitfish Existence in Polyculture System and Feed Type against the Growth Performance of Bigeye Trevally in Floating Net Cage 混养系统中兔鱼的存在及饵料类型对浮网箱大眼鲹生长性能的影响

Journal of Aquaculture Research and Development Pub Date : 2020-01-01 DOI: 10.35248/2155-9546.19.10.581

C. Paruntu, S. Darwisito, A. Rumengan, D. Wewengkang, H. Rotinsulu

{"title":"The Effects of Rabbitfish Existence in Polyculture System and Feed Type against the Growth Performance of Bigeye Trevally in Floating Net Cage","authors":"C. Paruntu, S. Darwisito, A. Rumengan, D. Wewengkang, H. Rotinsulu","doi":"10.35248/2155-9546.19.10.581","DOIUrl":"https://doi.org/10.35248/2155-9546.19.10.581","url":null,"abstract":"The objective of this research is to investigate the effects of rabbitfish (Siganus canaliculatus) existence in polyculture system and feed type against the growth performance of bigeye trevally (Caranx sexfasciatus) in floating net cage. Study on polyculture of bigeye trevally and rabbitfish and monoculture of bigeye trevally in the cage were conducted at the coastal of South Bolaang Mongondow, North Sulawesi, Indonesia in 2018. The experiment was designed with three treatments for bigeye trevally, namely: monoculture of bigeye trevally fed with fresh trash fish + corn oil 4% (Treatment A), polyculture of bigeye trevally and rabbitfish fed with fresh trash fish + corn oil 4% (Treatment B), polyculture of bigeye trevally and rabbitfish fed only fresh trash fish (Treatment C); On the other hand, 2 treatments for rabbitfish, namely: polyculture of rabbitfish and bigeye trevally which are fed with only carp pellets + fresh trash fish (1:1) (Treatment D) and polyculture of rabbitfish and bigeye trevally which are fed with carp pellets + fresh trash fish (1:1) + corn oil 4% (Treatment E). Each treatment consisted of 3 replications. The results show that the daily growth rates of bigeye trevally from treatment A, B, and C are 0.67%, 1% and 0.68% of body weight per day, while the daily growth rates of rabbitfish from treatment D and E are 0.56% and 0.81% of body weight per day, respectively. Feed conversion ratios of bigeye trevally from treatment A, B and C are 6.69, 4.86 and 6, while feed conversion ratios of rabbitfish from treatment D and E are 4.57 and 4.16, respectively. Rabbitfish existence in polyculture system and feed type gave a faster growth of bigeye trevally in the cage compared to the absence of both.","PeriodicalId":15243,"journal":{"name":"Journal of Aquaculture Research and Development","volume":"75 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86382717","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: 3

New Natural Method for the Elimination of Salmon Farms Parasite Copepods 消除鲑鱼养殖场寄生桡足类的新自然方法

Journal of Aquaculture Research and Development Pub Date : 2020-01-01 DOI: 10.35248/2155-9546.20.11.595

J. E. Trigo, Meritxell Mondéjar

{"title":"New Natural Method for the Elimination of Salmon Farms Parasite Copepods","authors":"J. E. Trigo, Meritxell Mondéjar","doi":"10.35248/2155-9546.20.11.595","DOIUrl":"https://doi.org/10.35248/2155-9546.20.11.595","url":null,"abstract":"The observations carried out during the spring of 2014 on different Atlantic salmon (Salmo salar Linnaeus, 1758) sea farms around the island of Froya (Sor–Trondelag), Norway, served to lay the foundations for a totally natural and environmentally friendly method for removal salmon parasitic copepods known as sea lice. The method is based on two known data: the different stages of copepod larval development, some of which are free-living as part of plankton and the existence of marine invertebrates that feed on plankton and more specifically on zooplankton, that is, the animal part of the plankton that is where the copepod larvae are. If we combine these two facts, we obtain the main idea of the method: introducing marine invertebrate filter feeders in special devices (patent pending) inside the cages of the marine farms, it will only be necessary to let these invertebrates carry out their natural function of feeding based on copepod larvae, that is, when they are in their most vulnerable phase and in which they have not yet caused harm to the salmon. In this way, sea lice can be eliminated without the use of chemicals, medicines or methods that can cause unnecessary stress to salmon on sea farms.","PeriodicalId":15243,"journal":{"name":"Journal of Aquaculture Research and Development","volume":"144 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77594599","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

Length-Weight Relationship (LWR), Gonadosomatic Index (GSI) and Fecundity of Johnius borneensis (Bleeker, 1850) from Lower Agusan River basin, Butuan City, Philippines 菲律宾Butuan市Agusan河下游流域的Johnius borneensis (Bleeker, 1850)的长重关系(LWR)、性腺指数(GSI)和繁殖力

Journal of Aquaculture Research and Development Pub Date : 2020-01-01 DOI: 10.35248/2155-9546.19.10.598

Sheena M. Tagarao, C. Solania, J. Jumawan, S. G. Masangcay, L. Calagui

引用次数: 5

Analyzing Livelihood Sustainability of Climate Vulnerable Fishers: Insight from Bangladesh 分析易受气候影响渔民生计的可持续性:来自孟加拉国的见解

Journal of Aquaculture Research and Development Pub Date : 2020-01-01 DOI: 10.35248/2155-9546.19.10.593

Atiqur Rahman Sunny, Kazi Mohammad Masum, Nusrat S. Islam, Mizanur Rahman, Arifur Rahman, Jahurul Islam, S. Rahman, Kh., aker Jafor Ahmed, S. Prodhan

{"title":"Analyzing Livelihood Sustainability of Climate Vulnerable Fishers: Insight from Bangladesh","authors":"Atiqur Rahman Sunny, Kazi Mohammad Masum, Nusrat S. Islam, Mizanur Rahman, Arifur Rahman, Jahurul Islam, S. Rahman, Kh., aker Jafor Ahmed, S. Prodhan","doi":"10.35248/2155-9546.19.10.593","DOIUrl":"https://doi.org/10.35248/2155-9546.19.10.593","url":null,"abstract":"Fish and fishery resources play an important role in improving socio-economic status of the fishing communities. Sylhet, the haor (bowl or saucer shape shallow depression) dominated administrative divisions (encompassing RAMSAR site and Ecological Critical Wetland Area) of Bangladesh is very promising for freshwater capture fisheries. But very few studies focused on the overall status on livelihood sustainability of fishing communities in this region. This study identified the demography, livelihood strategy, constraints of fishing and their coping strategies, strength, weakness and opportunity of fishing communities using household questionnaires, oral history interviews, and focus group discussions in Sylhet division (north eastern region of Bangladesh). The study identified physical strength and intention to work all the year round as the key strengths and acute poverty, poor economy, lack of alternative income generating opportunity and reduced fish availability as common weakness of fishers. Major threats facing by the fishers were natural calamities, overexploitation, dependency on natural resources and improper policy implication. Scope of alternative income generating opportunities, training and motivational program among the resource users and community based fisheries management could improve the situation. Findings of this study would provide important guideline for wetland management, planning and development of livelihood sustainability of the fishing communities.","PeriodicalId":15243,"journal":{"name":"Journal of Aquaculture Research and Development","volume":"11 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79276910","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: 21