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Heavy metals concentrations in water and fish of some Egyptian lakes and fish ponds
Type: Journal Article
Five heavy metals namely, cadmium, copper, iron, lead, and zinc were determined in water and fish samples obtained from three different lakes and fishponds in Egypt over nine months to assess pollution with those toxic ...
Field studies on prevention and biological control of the cyanobacterial blooms using Chlorella and Scenedesmus in the Nile tilapia farms
Type: Journal Article
This 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.
Effect of nitrogen fertilizer source on water quality and performance of two tilapia species
Type: Journal Article
The purpose of the present study was to compare the effect of urea and calcium nitrate (c. nitrate) as nitrogen fertilizer sources with mono superphosphate (msp) on water quality and the performance of two species of tilapia ...
Environment-friendly biomaterial (Rice Straw extract) for controlling the algal bloom of Microcystis aeruginosa in Natural water in Abbassa and Ryan water in Egypt
Type: Journal Article
The current study was carried out to investigate the use of rice straw extract in the control of algae blooms in natural water.
Estimation of Some Chemical Parameters of River Nile Sediments Exposed to Fish Cages
Type: Journal Article
The aim of this study was to assess the environmental impact of cage farm for ongrowing fish (Oreochromis niloticus) on the river sediments beneath and adjacent to the cages in El-Bostan region, Damietta Governorate by ...
Liberalization reform, "Neo-centralism", and black market: the political diseconomy of Lake Nasser fishery development
Type: Journal Article
Despite its relatively modest importance, and the current difficulties faced by the government in implementing liberalization in the rest of the country, the Egyptian government decided to embark on a reform of the Lake ...
Impacts of organic fertilization systems on water quality, phytoplankton populations and fish production in earthen ponds
Type: Journal Article
This 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.
Risk assessment of using poultry manure on water quality, fish as well as their human health and biological treatment in aquaculture ponds
Type: Journal Article
The efficiency of Scenedesmus dimorphus as biological treatment to improve water and fish quality in fish farms where poultry manure as fertilizers were studied.
Length-weight relationship of fishes caught by trawl off Alexandria, Egypt
Type: Journal Article
This paper presents the length-weight relationship parameters (a and b) for 29 fish species, belonging to 16 families, taken by otter trawl fishing from Egyptian Mediterranean waters. The b values obtained ranged from 2.50 ...
Selective breeding for increased body weight in a synthetic breed of Egytian Nile tilapia, Oreochromis niloticus: response to selection and genetic parameters
Type: Journal Article
Selection for harvest weight was performed in a fully pedigreed synthetic line of Nile tilapia (Oreochromis niloticus) in Egypt for two generations. Records were available over three spawning seasons (2002, 2003 and 2004) ...