WorldFish Repository: Recent submissions
Now showing items 1221-1240 of 5196
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Impacts of organic fertilization systems on water quality, phytoplankton populations and fish production in earthen ponds
(2009)Type: Journal ArticleThis study carried out to evaluate the influence of two application system of chicken manure fertilizer in earthen ponds on water quality, phytoplankton population and fish production. -
Field studies on prevention and biological control of the cyanobacterial blooms using Chlorella and Scenedesmus in the Nile tilapia farms
(2008)Type: Journal ArticleThis study aimed to investigate the use of green algae Chlorella elliposoidea (Gerneck) + Scenedesmus bijuga (Turpin) Lageh as prevention and biological control treatment of cyanobacterial blooms as field application. -
Environment-friendly biomaterial (Rice Straw extract) for controlling the algal bloom of Microcystis aeruginosa in Natural water in Abbassa and Ryan water in Egypt
(2009)Type: Journal ArticleThe current study was carried out to investigate the use of rice straw extract in the control of algae blooms in natural water. -
Risk assessment of using poultry manure on water quality, fish as well as their human health and biological treatment in aquaculture ponds
(2009)Type: Journal ArticleThe efficiency of Scenedesmus dimorphus as biological treatment to improve water and fish quality in fish farms where poultry manure as fertilizers were studied. -
Value chain analysis of Egyptian fish seed production
(2014)Type: Conference PaperThe current study is designed to provide more information on one of the main inputs for the Egyptian aquaculture value chains, i.e., the supply of fish seed. The study focused on the four selected governorates, namely ... -
A comparison of the fixed input and water quality analysis methods for optimizing fertilization requirements, minimizing costs and increasing fish production in polyculture ponds
(2010)Type: Journal ArticleThis study aims to find a proper fertilization method to optimize nutrient requirements and a proper fertilization strategy through determining the amount as well as the period of fertilizers addition, with an aim of ... -
Effect of female weight on reproductive performance of nile tilapia (Oreochromis niloticus)
(2014)Type: Conference PaperThe present study aimed to investigate the effect of broodstock size on the reproductive performance of Nile tilapia and to see whether this identifies possible broodstock management strategies that may be adopted by ... -
Bio-economic evaluation of African Catfish (Clarias gariepinus) interaction with Nile Tilapia (Oreochromis niloticus) in low input system and its effect on water quality
(2010)Type: Journal ArticleThis study aims to determine the best stocking rate of African catfish (Clarias gariepinus) as a predator to control unwanted tilapia recruits in a bilyculture system and to assess the effects of that on fish growth, water ... -
Effect of gypsum treatment on water quality parameters and fish performance in fertilized polyculture earthen ponds
(2012)Type: Journal ArticleThis experiment aimed to study the effect of agriculture gypsum treatment in aquaculture ponds (to raise water total hardness) on the physico-chemical and biological parameters of pond water and fish performance in a ... -
Control of microcystis aeruginosa using tannic acid
(2006)Type: Journal ArticleOne of the most difficult challenges facing the commercial fish producers is how to keep the constant balance that required maintaining a stable relationship among the water, fish and microscopic flora and fauna in their ... -
Effects of two nitrogen fertilizers on water quality and hybrid tilapia performance in fish farms
(2010)Type: Journal ArticleThe purpose of the present study was to compare the effect of urea and ammonium nitrate as nitrogen fertilizer sources with mon superphosphate on water quality and the productive performance of hybrid tilapia fish in outdoor ... -
Aquaculture genetics research in Egypt
(2000)Type: Conference PaperFish production in Egypt has significantly increased over the last few years reaching 546 000 t in 1998 compared to 306 000 t in 1988. The contribution of aquaculture in the overall fish production has increased as well ... -
Effect of garlic and yeast in the culture of Nile tilapia (Oreochromis niloticus)
(2009)Type: Journal ArticleThe present study aimed to investigate the effect of both garlic and yeast (Saccharomyces cervecesa) on survival and growth performance of cultured Nile tilapia (Oreochromus niloticus), besides studying its immune stimulatory ... -
Laboratory studies for preventing the growth of Microcystis sp. using Chlorella and Sendessmus in the Nile tilapia culture
(2006)Type: Conference PaperThis study is a trial for the prevention of Microcystis sp. growth using Chlorella and Scenedesmus mass culture via indoor experiment. -
Estimated costs and returns for commercial cage production of fingerlings and table-size mullet (Mugil cephalus) in Dakhlia Governorate, Egypt
(2012)Type: Journal ArticleLarge scale cage culture of mullet is new practice in Egypt and have not economically evaluated. The aims of this study are: to assess the economic potential of the actual practices of private mullet cage operations in ... -
Utilization of blue green algae (Anabena wisconsienense) as a feeding and biofertilization for Nile tilapia (Oreochromis niloticus) cultivated in rice fields
(2006)Type: Journal ArticleThis study has been carried out to investigate the growth performance and economic efficiency as well as pond productivity of Nile tilpia fingerlings cultured in rice fields as affected by dried blue green alga for nutrition ... -
Emerging COVID-19 impacts, responses, and lessons for building resilience in the seafood system
(2020)Type: Concept NoteThe COVID-19 pandemic and subsequent lockdowns are creating health and economic crises that threaten food and nutrition security. The seafood sector provides important sources of employment and nutrition, especially in ... -
Role of homestead farming systems in the livelihoods and food security of poor farmers in southern Bangladesh
(2020)Type: ReportAreas in southern Bangladesh share common economic prospects but also challenges. The vast region is already undergoing adverse effects from natural disasters, such as tropical cyclones and accompanying storm surges. ... -
Nutrition approaches in the Fish for Livelihoods project (Burmese version)
(2020)Type: BriefThis document is a guideline about the nutrition approaches to be followed in Fish for Livelihoods project. Development and printing of communication materials on nutrition and WASH based on the Essential Nutrition Actions ... -
Climate smart farming of tilapia
(2020)Type: ReportThe In-Pond Raceway System (IPRS) is the culture system that recycle water within the pond with no need to exchange water during culture season. The system require establishing a cell inside ponds and creating water current ...
