Consulta: subjectFacets:"Http://aims.fao.org/aos/agrovoc/c_2929"
Registros recuperados: 3
Data/hora: 16/06/2024 07:09:44

A comparative study on the feeding habits of Oreochromis niloticus (Linnaeus) in Nyanza Gulf Lake Victoria and sewage fish ponds
Provedor de dados: 20
Autores: Getabu, A.
Gut content analysis of Oreochromis niloticus from the Nyanza Gulf,     Lake Victoria showed that the bulk of the food items ingested     constituted bottom deposits and blue green algae. Among the live food     items ingested, blue green algae (Cyanophyceae) constituted 53.6%, the     diatoms (Bacillariophyaceae) 19.7%, aquatic invertebrates (mainly     Copepoda, Cladocera, and Rotifera) 12.9%, desmids (Desmidaceae) 7.7%     and lastly the green algae (Chlorophyceae) 6.2%. The most preferred     food items were: Spirulina laxisma and Nitzschia accicularis. The     least preferred food items were: Lyngbya circumcreta, Microcystis     aeruginosa and Pediastrum simplex. The quantity of food eaten by O.     niloticus to satiation ranged from 0.016-4.5% body...
Tipo: Proceedings Paper
Palavras-chave: Oreochromis niloticus; Feeding behaviour; Fish ponds; Food organisms; Sewage; Feeding behaviour; Fish ponds; Sewage; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_2929; Http://aims.fao.org/aos/agrovoc/c_7007.
Ano: 1994
URL: http://hdl.handle.net/1834/1160

Piscicultura para productores
Provedor de dados: 20
Autores: Carnevia, D.; Speranza, G.
Manual de piscicultura útil para toda persona física o jurídica, interesadas en desarrollar esta actividad en el país, contribuyendo de esta manera con la reactivación productiva no tradicional, mediante el cultivo de animales acuáticos en aguas interiores o en zonas costeras aptas para ello. Se presenta además una actualización del marco normativo vigente para el desarrolllo de la piscicultura en el Uruguay.
Tipo: Journal Contribution
Palavras-chave: Fish culture; Pond culture; Fish ponds; Agropisciculture; Aquaculture facilities; Freshwater aquaculture; Marine aquaculture; Fish culture; Fish ponds; Agropisciculture; Http://aims.fao.org/aos/agrovoc/c_2918; Http://aims.fao.org/aos/agrovoc/c_2929; Http://aims.fao.org/aos/agrovoc/c_212.
Ano: 2003
URL: http://hdl.handle.net/1834/1581

Influence of barley straw and submerged macrophytes on fishpond wastewater quality
Provedor de dados: 20
Autores: Ghobrial, M.G.; Okbah, M.A.; Gharib, S.M.; Soliman, A.M.
Barley straw has received, recently, considerable attention as an algicide, which could be used to control algal growth in fishponds. It is regarded as cost-effective, user friendly and environmentally sounds. On the other hand, the submerged wetland macrophytes are crucial for the stabilization of clear water state in shallow lakes, by their active production of anti-algal compounds (allelochemicals) through allelopathy. Microcosm experiments using barley straw and the submerged macrophytes: Najas marina L., Potamogeton pectinatus L. and Ceratophyllum demersum L. in culture media with fishpond water were carried out outdoors to simulate the situation as natural as possible. Nutrients concentrations were measured beside the analysis of phytoplankton and...
Tipo: Journal Contribution
Palavras-chave: Field study; Phytoplankton; Fish ponds; Phytoplankton; Fish ponds; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_2929.
Ano: 2007
URL: http://hdl.handle.net/1834/2210