M. A. Wahab, Md. Jimi Reza, M. Ali, M. Nahiduzzaman
A fishers’ women-led Participatory Action Research (PAR) was conducted in 30 homestead ponds to assess the potential for polyculture of Tilapia (Oreochromis niloticus) and major carps Rohu (Labeo rohita) and Catla (Catla catla) in two coastal fishing villages of Bangladesh. Three treatments, namely T1 (Tilapia 200 fish per decimal; 1 decimal=40 m2), T2 (Tilapia 200+ Rohu 32+ Catla 8 fish per decimal) and T3 (Tilapia 200+ Rohu 8+ Catla 32 fish per decimal), each with 5 replicates, were tried in Hossainpur and Anipara villages. Formulated commercial Mega-feed was applied to the ponds twice daily at an initial rate of 10% body weight (bw)/day of Tilapia down to 4% bw/day throughout the culture period. The water quality parameters of ponds including transparency, salinity and dissolved oxygen significantly varied among treatments except temperature and pH and remained within optimum range for carp polyculture except salinity. The survival rate, harvesting weight and yield of Tilapia were significantly highest in T1 (85.63±05%, 258.59±18.76 g & 11073±805 kg/ha, respectively) in Anipara and lowest in T3 (75.63±0.37%, 136.97±10.63 g & 5180±406 kg/ha, respectively) in Hossainpur. The gross fish production was the significantly highest in T1 (11354±806 kg/ha) of Anipara and lowest in T1 (6325±227 kg/ha) of Hossainpur. Statistically, the highest net return (866,627±84874 BDT/ha) was found in T1 of Anipara and lowest in T3 (279,389±46104 BDT/ha) of Hossainpur with a significantly higher benefit-cost ratio (BCR) obtained in T1 (3.26±0.20) for Tilapia and lower in T3 (1.58±0.10) for polyculture Tilapia and carp of Hossainpur. Therefore, it may be concluded that Tilapia production in small homestead coastal ponds has a higher potential than its mix with carps in polyculture for generating food and supplemental income opportunity for coastal fishers’ women in Bangladesh.
{"title":"The Potential for Homestead Pond Polyculture of Tilapia and Carps in Coastal Bangladesh","authors":"M. A. Wahab, Md. Jimi Reza, M. Ali, M. Nahiduzzaman","doi":"10.30564/jfs.v1i1.882","DOIUrl":"https://doi.org/10.30564/jfs.v1i1.882","url":null,"abstract":"A fishers’ women-led Participatory Action Research (PAR) was conducted in 30 homestead ponds to assess the potential for polyculture of Tilapia (Oreochromis niloticus) and major carps Rohu (Labeo rohita) and Catla (Catla catla) in two coastal fishing villages of Bangladesh. Three treatments, namely T1 (Tilapia 200 fish per decimal; 1 decimal=40 m2), T2 (Tilapia 200+ Rohu 32+ Catla 8 fish per decimal) and T3 (Tilapia 200+ Rohu 8+ Catla 32 fish per decimal), each with 5 replicates, were tried in Hossainpur and Anipara villages. Formulated commercial Mega-feed was applied to the ponds twice daily at an initial rate of 10% body weight (bw)/day of Tilapia down to 4% bw/day throughout the culture period. The water quality parameters of ponds including transparency, salinity and dissolved oxygen significantly varied among treatments except temperature and pH and remained within optimum range for carp polyculture except salinity. The survival rate, harvesting weight and yield of Tilapia were significantly highest in T1 (85.63±05%, 258.59±18.76 g & 11073±805 kg/ha, respectively) in Anipara and lowest in T3 (75.63±0.37%, 136.97±10.63 g & 5180±406 kg/ha, respectively) in Hossainpur. The gross fish production was the significantly highest in T1 (11354±806 kg/ha) of Anipara and lowest in T1 (6325±227 kg/ha) of Hossainpur. Statistically, the highest net return (866,627±84874 BDT/ha) was found in T1 of Anipara and lowest in T3 (279,389±46104 BDT/ha) of Hossainpur with a significantly higher benefit-cost ratio (BCR) obtained in T1 (3.26±0.20) for Tilapia and lower in T3 (1.58±0.10) for polyculture Tilapia and carp of Hossainpur. Therefore, it may be concluded that Tilapia production in small homestead coastal ponds has a higher potential than its mix with carps in polyculture for generating food and supplemental income opportunity for coastal fishers’ women in Bangladesh.","PeriodicalId":15784,"journal":{"name":"Journal of Fisheries and Aquatic Science","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78447463","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}
In this paper, a software for management and decision support in a fish farm is presented. The software called AQUAM is dedicated to fresh water fish farms. Its aim is to make an efficient management of resources through planning, monitoring, analysis and decision support. Successful planning and management requires the integration of data related to ponds, fish species, fish growth, water and energy and economic analysis. AQUAM computes farm budgets relating various costs and returns in order to determine short and long term profitability. A simulation of the profit, as a function of the fish holding density, is performed with AQUAM. The data used in the simulation are from a fish farm of semi-intensive type, located in the region Danube Delta, at village Jurilovca, Tulcea county, Romania. The fish species that were taken into account were carp and sanger.
{"title":"AQUAM—A Decision Support Software for Fish Farm Management","authors":"Marius Rădulescu","doi":"10.30564/JFSR.V1I1.661","DOIUrl":"https://doi.org/10.30564/JFSR.V1I1.661","url":null,"abstract":"In this paper, a software for management and decision support in a fish farm is presented. The software called AQUAM is dedicated to fresh water fish farms. Its aim is to make an efficient management of resources through planning, monitoring, analysis and decision support. Successful planning and management requires the integration of data related to ponds, fish species, fish growth, water and energy and economic analysis. AQUAM computes farm budgets relating various costs and returns in order to determine short and long term profitability. A simulation of the profit, as a function of the fish holding density, is performed with AQUAM. The data used in the simulation are from a fish farm of semi-intensive type, located in the region Danube Delta, at village Jurilovca, Tulcea county, Romania. The fish species that were taken into account were carp and sanger.","PeriodicalId":15784,"journal":{"name":"Journal of Fisheries and Aquatic Science","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77347173","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}
In recent years there has been increasing concern over the state of fish stocks, especially those that support key fisheries and supply food to many consumers. There is also concern over the state of aquatic environments, and the effects of climate change. Fisheries management is controlled by government agencies, often cooperating with similar agencies from other nations. This paper deals with the need for expert advice on fisheries, involving fishers as well as scientists. Mention is made of a Fisheries Partnership set up in Europe, bringing fishers and scientists together with other stakeholders to discuss the problems of managing fish stocks. The partnership was especially successful in improving relationships between fishers and scientists, and made significant improvements to some fish stock assessments. European Regional Advisory Councils were later established to play a similar role. They are providing significant advice on fisheries, but they do not yet play a key role in actual management. It is important to consider how stakeholders and scientists can become more actively involved in fisheries management. There is a crucial need to develop new, more participatory ways of managing fisheries.
{"title":"The Importance of Involving Stakeholders and Scientists in the Management of Marine Fisheries","authors":"A. Hawkins","doi":"10.30564/JFSR.V1I1.917","DOIUrl":"https://doi.org/10.30564/JFSR.V1I1.917","url":null,"abstract":"In recent years there has been increasing concern over the state of fish stocks, especially those that support key fisheries and supply food to many consumers. There is also concern over the state of aquatic environments, and the effects of climate change. Fisheries management is controlled by government agencies, often cooperating with similar agencies from other nations. This paper deals with the need for expert advice on fisheries, involving fishers as well as scientists. Mention is made of a Fisheries Partnership set up in Europe, bringing fishers and scientists together with other stakeholders to discuss the problems of managing fish stocks. The partnership was especially successful in improving relationships between fishers and scientists, and made significant improvements to some fish stock assessments. European Regional Advisory Councils were later established to play a similar role. They are providing significant advice on fisheries, but they do not yet play a key role in actual management. It is important to consider how stakeholders and scientists can become more actively involved in fisheries management. There is a crucial need to develop new, more participatory ways of managing fisheries.","PeriodicalId":15784,"journal":{"name":"Journal of Fisheries and Aquatic Science","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88342857","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}
Md. Abu Sayed Jewel, Md. Ayenuddin Haque, M. Ferdous, M. Khatun, S. Akter
{"title":"Length-weight Relationships and Condition Factors of Cirrhinus reba (Hamilton, 1822) in Padma River, Bangladesh","authors":"Md. Abu Sayed Jewel, Md. Ayenuddin Haque, M. Ferdous, M. Khatun, S. Akter","doi":"10.3923/JFAS.2019.39.45","DOIUrl":"https://doi.org/10.3923/JFAS.2019.39.45","url":null,"abstract":"","PeriodicalId":15784,"journal":{"name":"Journal of Fisheries and Aquatic Science","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84228177","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}
In this paper a software for management and decision support in a fish farm is presented. The software called AQUAM is dedicated to fresh water fish farms. Its aim is to make an efficient management of resources through planning, monitoring, analysis and decision support. Successful planning and management requires the integration of data related to ponds, fish species, fish growth, water and energy and economic analysis.AQUAM computes farm budgets relating various costs and returns in order to determine short and long term profitability. A simulation of the profit, as a function of the fish holding density, is performed with AQUAM. The data used in the simulation are from a fish farm of semi-intensive type, located in the region Danube Delta, at village Jurilovca, Tulcea county, Romania. The fish species that were taken into account were carp and sanger.
{"title":"AQUAM – A decision support software for fish farm management","authors":"Marius Rădulescu","doi":"10.30564/jfs.v1i1.661","DOIUrl":"https://doi.org/10.30564/jfs.v1i1.661","url":null,"abstract":"In this paper a software for management and decision support in a fish farm is presented. The software called AQUAM is dedicated to fresh water fish farms. Its aim is to make an efficient management of resources through planning, monitoring, analysis and decision support. Successful planning and management requires the integration of data related to ponds, fish species, fish growth, water and energy and economic analysis.AQUAM computes farm budgets relating various costs and returns in order to determine short and long term profitability. A simulation of the profit, as a function of the fish holding density, is performed with AQUAM. The data used in the simulation are from a fish farm of semi-intensive type, located in the region Danube Delta, at village Jurilovca, Tulcea county, Romania. The fish species that were taken into account were carp and sanger.","PeriodicalId":15784,"journal":{"name":"Journal of Fisheries and Aquatic Science","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85845509","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}
{"title":"Optimal Stocking Density of Tilapia rendalli (Boulenger, 1896) for Increased Growth in a Periphyton Based Aquaculture System","authors":"K. Mzengereza, Gladson Chikorela, E. R. Chirwa","doi":"10.3923/jfas.2019.33.38","DOIUrl":"https://doi.org/10.3923/jfas.2019.33.38","url":null,"abstract":"","PeriodicalId":15784,"journal":{"name":"Journal of Fisheries and Aquatic Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80662563","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}
{"title":"Benthic Fauna Shifts Downstream from Alluvial Gold Mine: A Case Study in a Subpolar Urals River","authors":"T. Pavluk, L. Stepanov","doi":"10.3923/JFAS.2019.15.24","DOIUrl":"https://doi.org/10.3923/JFAS.2019.15.24","url":null,"abstract":"","PeriodicalId":15784,"journal":{"name":"Journal of Fisheries and Aquatic Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88695582","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}
Md. Abu Sayed Jewe, Md. Ayenuddin, Mst. Shahanaj F, Mst. Samsad Kha, J. Hasan, Mohammad Abdul Bate
{"title":"Food and Feeding Habit of Reba Carp Cirrhinus reba in the Padma River, Northwestern Bangladesh","authors":"Md. Abu Sayed Jewe, Md. Ayenuddin, Mst. Shahanaj F, Mst. Samsad Kha, J. Hasan, Mohammad Abdul Bate","doi":"10.3923/JFAS.2019.1.6","DOIUrl":"https://doi.org/10.3923/JFAS.2019.1.6","url":null,"abstract":"","PeriodicalId":15784,"journal":{"name":"Journal of Fisheries and Aquatic Science","volume":"73 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86396167","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}
{"title":"Landmark-based Truss Morphometrics Delineate the Stock Structure of Lepidocephalichthys guntea","authors":"Sarower Mahfuj, Shaid-ur Rahman, A. Samad","doi":"10.3923/jfas.2019.25.32","DOIUrl":"https://doi.org/10.3923/jfas.2019.25.32","url":null,"abstract":"","PeriodicalId":15784,"journal":{"name":"Journal of Fisheries and Aquatic Science","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90564983","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}
{"title":"Nutritional Evaluation of Defatted Groundnut Cake meal with Amino acid as Protein Supplement in African Catfish (Clarias gariepinus Burchell, 1822) Juveniles Diet","authors":"Olapade Olufemi Ju, George Patrick Qu","doi":"10.3923/jfas.2019.7.14","DOIUrl":"https://doi.org/10.3923/jfas.2019.7.14","url":null,"abstract":"","PeriodicalId":15784,"journal":{"name":"Journal of Fisheries and Aquatic Science","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78353248","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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