Sustainable aquaculture: Recent submissions
Now showing items 661-680 of 2402
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The assessment of mycotic settlement of freshwater fishes in Egypt
(2008)Type: Conference PaperThe objectives of this study are to determine the types of fungal pathogens affecting freshwater fish especially those causing high mortality rates, elucidate the incidence and distribution of such pathogens in Oreochromis ... -
Selection for growth of Nile tilapia (Oreochromis niloticus L.) in low-input environments
(2006)Type: ThesisThis thesis is a part of Wageningen University’s Interdisciplinary Research and Education Fund project entitled “Optimization of nutrient dynamics and fish for integrated agriculture- aquaculture systems” (INREF-POND). The ... -
Enhancing fish farm productivity through improved management. A case study in Egypt
(2000)Type: Conference PaperDuring a 3-week training program held during 1999 on field application for fish culture technology in Egypt, it was noticed that a significant enhancement in pond productivity could be achieved mainly through improved pond ... -
Review of tropical reservoirs and their fisheries: The cases of Lake Nasser, Lake Volta and Indo Gangetic Basin reservoir
(2011)Type: ReportFreshwaters contribute 15 percent of the world's reported fish catch, or about 10.1 million tonnes in 2006, most of which comes from tropical systems. The true contribution of tropical inland fisheries is likely to be ... -
Biological control of the cyanobacterium Microcystis aeruginosa using Chlorella and Scenedesmus mass culture
(2006)Type: Conference PaperThis study aimed to investigate the use of Chlorophyta Chlorella elliposoides and Scenedesmus bijuga (Turpin) Lageh as a biological control means against Microcystis aeruginosa Kutz as a laboratory trial before field application. -
Growth performance, feed utilization and gonad development of diploid and triploid Nile tilapia, Oreochromis niloticus
(2017)Type: Journal ArticleA 16 week experiment was conducted to evaluate growth performances, gonads development, carcass and proximateanalysis of diploid and triploid Nile tilapia, Oreochromis niloticus. -
Value chain analysis of the Egyptian aquaculture sector
(2012)Type: Conference PaperEgypt’s aquaculture production (921,585 tonnes in 2010) is by far the largest of any African country and places it 11th in terms of global production. Despite the fact that the aquaculture sector in Egypt is now a mature ... -
Effect of Photoperiod, Dietary Protein and Temperature on Reproduction in Nile Tilapia (Oreochromis niloticus)
(2000)Type: Conference PaperPhotoperiod, crude protein level and water temperature were studied for their effects on reproductive performance and egg hatchability in Nile tilapia (Oreochromis niloticus). -
Production of genetically improved organic Nile tilapia
(2008)Type: Journal ArticleDemand for organic products for human consumption has been on the increase due to the belief that organic products are safer and healthier to the consumer and the environment. In developing countries, Nile tilapia (Oreochromis ... -
Reproductive and patho-physiological responses of blue tilapia (Oreochromis aureus) exposed to chromium with or without chelating substances
(2006)Type: Journal ArticleWater pollution with chromium included significant negative impact in the hematological and biochemical parameters together with marked histopathological alteration and lowering reproductive performance of fish. The addition ... -
Economic impacts of ponds management on water quality and growth performance of fish in polyculture
(2016)Type: Journal ArticleThe present study was conducted to evaluate the economics of the fish farms management under different systems and different water sources and its impact on the growth performance of fish in polyculture. -
Assessment of immune response supplemental immunoton and bovine lactoferrin as alternatives to antibiotics in nile tilapia (Oreochromis niloticus)
(2013)Type: Journal ArticleAn experiment was conducted to two different immunostimulants were investigated to detect changes in the activity of innate non-specific immune response, disease resistance and growth performance as alternatives to antibiotics ... -
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 ...