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Registros recuperados: 31
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Azolla pinnata as a possible replacement of palm kernel cake in the diet of oreochromis niloticus. OceanDocs
Abioye, O.M.; Adeyemo, A.A.; Ayinla, O.A.; Bekibele, D.O..
Azolla pinnata as a possible replacement of the palm kernel cake in the diet of Oreochromis niloticus. Compounded diets from a control with palm kernel cake replaced at varying levels of 0, 20, 40, 60, 80, and 100% with the aquatic fern (oven dried Azolla pinnata) were fed to Oreochromis niloticus for twelve weeks to determine the acceptability and utilization of the fern in the diet, verify the nutritional influence of the fern on the performance of the fish and possible optimum palm kernel cake replacement level. The fish readily accepted the test diets. Better growth responses were recorded in the treatments containing Azolla pinnata meal. The best response was observed in the 20% replacement level, thereby suggesting an optimum replacement. However...
Tipo: Report Palavras-chave: Nutrition; Aquaculture development; Nutrition; Http://aims.fao.org/aos/agrovoc/c_49892.
Ano: 1993 URL: http://hdl.handle.net/1834/2410
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Bases tecnológicas para el cultivo sostenible del ostión de mangle Crassostrea rhizophorae, en el Ecosistema Sabana Camaguey, República de Cuba. OceanDocs
Mazón-Suástegui, J.M.; Avilés-Quevedo, M.A.; Rivero-Suárez, S.E..
El cultivo de moluscos es una práctica ancestral; los antiguos romanos ya cultivaban ostras desde la edad media y posteriores civilizaciones han dado continuidad a dichas prácticas acuícolas, de manera tal, que en la actualidad existe un importante desarrollo tecnológico en el tema. Los ostiones son organismos bentónicos filtro- alimentadores y algunas especies tienen como hábitat los estuarios y deltas de ríos, con aguas someras y salobres. La mezcla de agua dulce y salada hace particularmente apropiados los ecosistemas de manglar para el crecimiento y reproducción de varias especies de moluscos de importancia comercial (Figura 1). Este es el caso del ostión de mangle Crassostrea rhizophorae, que ha recibido ese nombre justamente...
Tipo: Preprint Palavras-chave: Aquaculture development; Sustainable development; Appropriate technology.
Ano: 2011 URL: http://hdl.handle.net/1834/5736
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Chemical composition of clarias gariepinus collected from the wild OceanDocs
Ayinla, O.A..
Chemical composition of Clarias gariepinus collected from the wild was investigated. The moisture level ranged from 72.2% to 75.7% while the crude protein level was 18.9% to 19.7%.with the mean of 19.3%. The lipid content ranged from 1.04% to 1.32% (wet weight) while ash was 3.05% to 3.7%. The size of the fish did not significantly (p<0.05) affect the proximate composition. The amino acid pattern of different sizes of C. gariepins were similar with lysine level of 7.5 to 8.0g/16gN,and methionine level of 1.56 to 3.08g/16gN. PUFA of C. gariepinus ranged from 6.5to 7.8%.
Tipo: Report Palavras-chave: Aquaculture development.
Ano: 1993 URL: http://hdl.handle.net/1834/2383
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Conseil Présidentil sur la Pêche OceanDocs
Tipo: Book Palavras-chave: Artisanal fishing; Coastal fisheries; Fish catch statistics; Fishermen; Fishery management; Fishery development; Fishery oceanography; Fishing effort; Fishery protection; Fishery statistics; Freshwater fish; Marine fisheries; Pelagic fisheries; Aquaculture statistics; Aquaculture; Aquaculture development; Fishermen; Fishery management; Fishery oceanography; Marine fisheries; Aquaculture; Coastal fisheries; Fishing effort; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_2936; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_2938; Http://aims.fao.org/aos/agrovoc/c_4611; Http://aims.fao.org/aos/agrovoc/c_550; Http://aims.fao.org/aos/agrovoc/c_1696; Http://aims.fao.org/aos/agrovoc/c_24027; Http://aims.fao.org/aos/agrovoc/c_5659.
Ano: 2008 URL: http://hdl.handle.net/1834/2892
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Cultivos de moluscos bivalvos OceanDocs
Pascual, M.S.; Zampatti, E.A..
Bivalve culture in Argentina is beginning to develop commercially. Research was carried out at the North Patagonian gulfs (San Matias, San Jose and Nuevo)and focused three native species: the tehuelche scallop Aequipecten tehuelchus, the puelche oyster Ostrea puelchana and the common mussel Mytilus edulis platensis. Results achieved on each of these three species were different. In the case of scallops, the development of commercial aquaculture did not seem promising for many years due to the fact that production was sustained by natural populations: the dredge fishery of the San Matias Gulf and the diving fishery of the San Jose Gulf. Preliminary culture experiments dealt with larval fixation on artificial collectors and growth to commercial size on...
Tipo: Book Section Palavras-chave: Aquaculture economics; Aquaculture development; Aquaculture systems; Hatcheries; Seed collection; Clam culture; Oyster culture; Scallop culture; Mussel culture; Hatcheries; Seed collection; Oyster culture; Http://aims.fao.org/aos/agrovoc/c_3503; Http://aims.fao.org/aos/agrovoc/c_6930; Http://aims.fao.org/aos/agrovoc/c_5483.
Ano: 1998 URL: http://hdl.handle.net/1834/2580
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Effect of season on controlled propagation of the African catfish, clarias gariepinus (Burchell 1822). OceanDocs
Ayinla, O.A.; Nwadukwe, F.O..
The effect of season on the controlled propagation of C. gariepinus was investigated. The hypophysation of C. gariepinus using the pituitary extract from the sacrificed C. gariepinus was carried out from July, 1987 to June 1988. The female broodstock weight ranged from 0.50kg while the male weight, from 0.5kg to 0.6kg. The condition factor of the female broodfish was more or less uniform (1.3 to 1.7). The results showed that there was peak production of eggs by the female during the rainy season. Eggs production for rainy season ranged from 28,000 eggs/kg body weight in June to 37,600 eggs/kg body weight in August. The percentage hatching of the fertilized eggs was also higher in the rainy season than the dry season. The highest hatching of the...
Tipo: Report Palavras-chave: Aquaculture techniques; Aquaculture development; Aquaculture techniques; Http://aims.fao.org/aos/agrovoc/c_28992.
Ano: 1990 URL: http://hdl.handle.net/1834/2436
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Evaluación y desarrollo de la introducción del cultivo de Dorada (Sparus aurata) y Lubina (Dicentrarchus labrax) en zonas de la plataforma cubana OceanDocs
Isla Molleda, M.; Arencibia Carballo, G.; Delgado Miranda, G.; Tizol Correa, R..
La selección de zonas de la plataforma cubana que reúnan las condiciones medioambientales adecuadas para el desarrollo del maricultivo de especies foráneas en jaulas, es una estrategia que se está llevando a cabo por el Ministerio de la Industria Pesquera desde 1996. Hasta la fecha se han seleccionado y autorizado cuatro zonas de la plataforma cubana para la realización de esta actividad en el país, tales son Bahía de Cabañas, Cabo Cruz y Niquero, para el cultivo de dorada (Sparus aurata) y Arroyos de Mantua para el cultivo de lubina (Dicentrarchus labrax). Estas especies son consideradas de alto valor comercial fundamentalmente en países del área mediterránea y su cultivo y comercialización constituyen una fuente de ingresos al país. En...
Tipo: Working Paper Palavras-chave: Aquaculture development; Coastal zone management.
Ano: 2006 URL: http://hdl.handle.net/1834/4516
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Fatty composition of the developmental stage of some pond reared fresh water fishes in the oil palm belt of Nigeria. OceanDocs
Ayinla, O.A.; Idoniboye-Obu, T.I.E.; Omuaru, V.; Vehlow, U..
The fatty acid composition of the development stages (fingerling, juvenile and adult) of some pond raised fresh water fishes (Heterobranchus bidorsalis, ‘hybrid’ of H. bidorsalis and C. gariepinus, Chrysichtys nigrodigitatus, Heterotis niloticus and Oreochromis niloticus) were determined by gas liquid chromatography (GLC). Fatty acids abundant in the stages of these fishes are palm tic acid (C16:0), Oleic acid (C18:1) and Linolenic acid (C18:3w3) . Highly unsaturated fatty acid (HUFA) such as C20:4w6, C20:2w3 and C22:4w6 acids were present in small quantity. The common features of freshwater fish is evidently displayed namely the enrichment in linolenic (18:2w6) and / or linolenic (18:3w3) fatty acids. However the presence of high proportions of...
Tipo: Report Palavras-chave: Aquaculture development.
Ano: 1993 URL: http://hdl.handle.net/1834/2216
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Food and feeding habits of juveniles of some culturable fish species in Nigeria OceanDocs
Ugwumba, A.A.A..
The food and feeding habits of juveniles of eleven culturable fish species are reported. Overlap in feeding habits, inter and intra-specific competition for food in the species are discussed.
Tipo: Report Palavras-chave: Aquaculture development; Fishery resources; Juveniles.
Ano: 1988 URL: http://hdl.handle.net/1834/2203
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Growth response of clarias gariepinus (Burchell 1822) on silage-based diets. OceanDocs
Ayinla, O.A.; Akande, G.R..
The feeding trial of C. gariepinus using three silage based diets and one fish meal based diet was carried out in concrete tanks. The four experimental diets were fed to C. gariepinus fry of relatively the same size. At the end of 8 weeks feeding trial the fish increased from their initial body weight of 0.2g, 0.4g, 0.4g and 0.4g to average final weights of 21.2g 15.4g, 12.8g and 13.8g respectively. The diet containing 41.1% resulted in the least food conversion efficiency of 1.2 over the eight weeks period. Of the experimental treatments the diets containing the highest level of fish silage (41.0%) performed better than any of the other two treatments of 19.0% and 33.5% fish silage contents. Apart from the nutritional superiority of 14% fish meal-based...
Tipo: Report Palavras-chave: Aquaculture development.
Ano: 1988 URL: http://hdl.handle.net/1834/2484
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Incidence of parastic infection of pond raised tilapia spp and some cultivable fish species from three ecological areas of Lagos state OceanDocs
Awa, J.N.; Anyanwu, P.E..
Fish samples were collected from Lekki and Badagry lagoon and the Institute’s experimental fish farm, Lagos, from February 1983 to September 1984. Three thousand seven hundred and eighty six brooders and fingerlings rAnging between 3.5cm and 50.2cm in total length and weighing between 2.56g and 976,0g were examined. External parasites observed on Saratherodon galilaeus included monogenean trematodes, Gyrodactylus spp and Dactylogyrus spp; copepod, Argulus spp, and annelid (Piscilid) leeches on the body surface and gills. T. guineensis were infected by endoparasitic digenean trematodes and nematodes in the alimentary tract. Clarius gariepinus and Chrysichthys nigrodigitatus were infected with cestodes and nematodes. Infection was very high between...
Tipo: Report Palavras-chave: Aquaculture development; Fish farms.
Ano: 1988 URL: http://hdl.handle.net/1834/1264
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Integration of Sustainable Aquaculture and Rural Development OceanDocs
This paper describes a Proposal for Action for the elaboration of national and regional aquaculture development policies; policies that will enable aquaculture overcome its present difficulties and realise its potential contribution to improved regional food security and economic growth....
Tipo: Conference Material Palavras-chave: Aquaculture development; Rural development; Http://aims.fao.org/aos/agrovoc/c_6701.
Ano: 2000 URL: http://hdl.handle.net/1834/846
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L'aquaculture du Macrobrachium rosenbergii aux Antilles Francaises ArchiMer
Lacroix, Denis.
The aquaculture of Macrobrachium rosenbergii is launched in Martinigue by the regional council in 1976. A first "green water" type hatchery is built and provides juveniles to the first ponds. In 1978, CNEXO is asked to cooperate in scientific assistance. A new hatchery is built with COP "clear water" system and produces in 1980. The development of ponds (20 ha) needs the increase of the hatcheries capacity, which is now done with one single method and intensive larval first stage (7-8 millions PL. cap). In Guadeloupe, the first ponds started in 1978. Two cooperatives and 11 ha of ponds at this time have determined the construction of CNEXO in the construction of a regional hatchery. A small light one is already under production since July 83.
Tipo: Text Palavras-chave: Macrobrachium rosenbergii; Malacostraca; Growth; Hatcheries; Aquaculture systems; Aquaculture development; Guadeloupe; Production Martinique; Grossissement; Écloserie; Macrobrachium.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/1983/acte-1194.pdf
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l'Aquaculture (pisciculture et crevetticulture) dans la vallée du fleuve Sénégal: potentialité et perspective OceanDocs
Diallo, A.; Diouf, P.S.; Ngom, M.; Ndiaye, V..
l'Aquacuulture dans sa composante pisciculture à fait l'objet de plusieurs expérimentations dans la vallée du fleuve Sénégal par le biais de projet de production ce dernier n'a pas donné de résultats escomptés. L'Aménagement de la vallée à induit des disponibilités en terre et eau qui offre à l'aquaculture les possibilités d'un developpement durable notamment la pisciculture et crevetticulture.
Tipo: Journal Contribution Palavras-chave: Aquaculture; Aquaculture development; Aquaculture statistics; Freshwater aquaculture; Aquaculture systems; Marine aquaculture; Small scale aquaculture; Aquaculture; Http://aims.fao.org/aos/agrovoc/c_550.
Ano: 2003 URL: http://hdl.handle.net/1834/2222
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Les ressources vivantes exploitables du lac de Bizerte : Etat actuel et potentialités ( première partie) OceanDocs
Beji, O..
La production conchylicole du lac de Bizerte reste très faible (une moyenne de 120 t /an) comparée à son potentiel qui a été estimé selon les auteurs et la surface exploitée entre 10000 et 20000(t)/an. Un programme de développement d'entreprises conchylicoles de type familiales, PME et autres est à priori largement justifiable dans le lac de Bizerte et la mer ouverte avoisinante (zone de cap Zebib).La production annuelle moyenne de la pêche est de 86,7 t/an avec une productivité totale de 12,4 kg/ha/an. L’aménagement de la pêcherie, l’introduction d’une aquaculture extensive et l’ensemencement régulier du plan d’eau sont des solutions intéressantes pour améliorer les ressources du lac. La collecte naturelle des algues rouges de type gracilaire n’offre...
Tipo: Journal Contribution Palavras-chave: Potential resources; Aquaculture development; Shellfish; Exploitation.
Ano: 2000 URL: http://hdl.handle.net/1834/4294
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Manejo sostenible del cultivo de camarón en Cuba.Estudio de caso: camaronera CALISUR, provincia de Granma. OceanDocs
Isla Molleda, M..
Se aborda la problemática del impacto ambiental del cultivo de camarón en Cuba y la necesidad de encaminar los planes de desarrollo futuro hacia una acuicultura sostenible; la interacción de la actividad camaronera con otras actividades económicas que se desarrollan en la zona costera, y los conflictos sociales que se derivan de la misma, tomando como estudio de caso a la camaronera CALISUR, considerada la mayor granja del país, con 960 ha de estanques de cultivo, ubicada en una región de la cuenca del Cauto de gran importancia económica y social, la zona costera sur central del golfo de Guacanayabo. El estudio comprende la evaluación de la calidad del agua y de los sedimentos de las principales fuentes de abasto de la camaronera CALISUR y la zona costera...
Tipo: Theses and Dissertations Palavras-chave: Aquaculture development; Shrimp culture.
Ano: 2006 URL: http://hdl.handle.net/1834/1521
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Marine larval fish rearing ArchiMer
Arnold, C.
Various methods of producing juvenile finfish will be discussed. This includes the intensive production in controlled environments as well as extensive pond production. Factors important to survival such as temperature, salinity, pH, water quality, bacteria and parasites, density, food types and food density as well as information on food and food production will be given.
Tipo: Text Palavras-chave: Fish culture; Aquaculture development; Aquaculture techniques; Rearing.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1445.pdf
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Pilot project on community Aquaculture development in Nigeria OceanDocs
Tipo: Book Palavras-chave: Aquaculture development; Community development.
Ano: 2010 URL: http://hdl.handle.net/1834/5338
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Preliminary studies on the early rearing of clarias gariepinus in plastic pools OceanDocs
Ayinla, O.A.; Nwadukwe, F.O..
The larvae of clarias gariepinus were reared in 3 plastic pools at the stocking dencity of 194.25 fry/m2 with different rates of water exchange an plankton growth for each pool. The fry(6.2mm length) in each plastic pool were fed with supplementary diet of milk powder/egg yolk suspension in the ratio of 1:1 which was replaced with fish meal paste after 8 days of rearing. After 20 days of rearing the fry in the pool with the most plankton bloom and pebles on the bottom, had the lowest motality and maximum total length of 30.4+- 7.8mm. Pleurococcus sp, Navicula sp were found to be in highest concentration in the pool where the best growth pattern was recorded
Tipo: Report Palavras-chave: Aquaculture development.
Ano: 1988 URL: http://hdl.handle.net/1834/1279
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Rapport de l'atelier, la mariculture en Mauritanie : une nouvelle opportunité d'avenir. IMROP, Nouadhibou, 13 au 15 Novembre 2011 OceanDocs
Tipo: Report Palavras-chave: Oceans; Aquaculture development; Mariculture; Mariculture.
Ano: 2011 URL: http://hdl.handle.net/1834/4754
Registros recuperados: 31
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