Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados 20 (3) Autor Acha, E.M. (1) Bremec, C. (1) Ciocco, N.F. (1) Lasta, M.L. (1) Roux, A. (1) Schiariti, A. (1) Mais... Palavra-chave Http://aims.fao.org/aos/agrovoc/c_12170 (3) Life history (3) Biomass (1) Brackishwater fish (1) Ecology (1) Eggs (1) Estuaries (1) Estuarine fisheries (1) Fecundity (1) Fish larvae (1) Geographical distribution (1) Http://aims.fao.org/aos/agrovoc/c_15725 (1) Http://aims.fao.org/aos/agrovoc/c_2467 (1) Http://aims.fao.org/aos/agrovoc/c_2502 (1) Http://aims.fao.org/aos/agrovoc/c_2673 (1) Http://aims.fao.org/aos/agrovoc/c_2674 (1) Http://aims.fao.org/aos/agrovoc/c_2924 (1) Http://aims.fao.org/aos/agrovoc/c_4317 (1) Http://aims.fao.org/aos/agrovoc/c_5083 (1) Http://aims.fao.org/aos/agrovoc/c_5456 (1) Mais... Tipo do documento Theses and Dissertations (2) Book Section (1) Ano 2008 (1) 1999 (1) 1998 (1) País Belgium (3) Idioma Espanhol (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Estrategia reproductiva de la saraca, Brazilian menhaden, Brevoortia aurea (Pisces: Clupeidae), en el estuario del Río de la Plata 20 Acha, E.M.. The Brazilian menhaden, Brevoortia aurea, is the only species of genus Brevoortia in South American Atlantic waters, being abundant in the Rio de la Plata estuary. The temporal and spatial reproductive pattern of this menhaden was analyzed in relation to the major hydrographic features of the region, and the reproductive biology was studied by using histological analysis of ovaries. B.aurea is a multiple spawner with indeterminate annual fecundity. Daily spawning activity was mostly in the afternoon (15:00 - 16:00),based on the incidence of females with both hydrated oocytes and postovulatory follicles. Spawning frequency, determined using the percentage of females with postovulatory follicles, was about 12. during November. At this frequency, each... Tipo: Theses and Dissertations Palavras-chave: Reproduction; Fecundity; Ovaries; Fish larvae; Eggs; Life history; Brackishwater fish; Spawning grounds; Spawning seasons; Estuaries; Estuaries; Ovaries; Eggs; Life history; Spawning grounds; Reproduction; Fecundity; Fish larvae; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_5456; Http://aims.fao.org/aos/agrovoc/c_2502; Http://aims.fao.org/aos/agrovoc/c_12170; Http://aims.fao.org/aos/agrovoc/c_7277; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_15725; Http://aims.fao.org/aos/agrovoc/c_2924. Ano: 1999 URL: http://hdl.handle.net/1834/1458 Historia de vida y dinámica de poblaciones de Lychnorhiza lucerna (Scyphozoa) ¿Un recurso pesquero alternativo? 20 Schiariti, A.. In this Thesis we presented the first steps in the study of the life history and population dynamics of Lychnorhiza lucerna as well as the possibilities of development of its fishery in Argentina. L. lucerna presented a metagenetic life cycle characteristic of most scyphozoans. Polyps reproduced asexually by the production of podocysts and polidisk strobilation. The combination of both types of asexual reproduction resulted in a high strobilation rates indicating that the abundance of medusae would strongly depend on polyps abundance and reproduction. The absence of ephyrae in the Río de la Plata estuary suggest that L. lucerna doest not complete its life cycle locally but medusae would be produced by polyps located northwards along the Uruguayan or... Tipo: Theses and Dissertations Palavras-chave: Life cycle; Life history; Population dynamics; Reproductive cycle; Biomass; Estuarine fisheries; Life history; Biomass; Estuarine fisheries; Life cycle; Population dynamics; Http://aims.fao.org/aos/agrovoc/c_12170; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_2674; Http://aims.fao.org/aos/agrovoc/c_4317; Http://aims.fao.org/aos/agrovoc/c_6111. Ano: 2008 URL: http://hdl.handle.net/1834/3109 Moluscos bivalvos y gasteropodos 20 Lasta, M.L.; Ciocco, N.F.; Bremec, C.; Roux, A.. The main life history characteristics, ecology and fishing interest of bivalve and gastropod species from the Argentine Sea are described. Exploited bivalve species are: mussel Mytilus edulis platensis, cholga Aulacomya ater, tehuelche scallop Aequipecten tehuelchus, Patagonian scallop Zygochlamys patagonica. Bivalve species irregularly exploited are: yellow clam Mesodesma mactroides, purple clam Amiantis purpurata, hard shell clam Ameghinomya antiqua and wedge shell Donax hanleyanus. It is also presented information on species of potential interest: clams Eurhomalea exhalbida and Pitar rostratus, half naked pen shell Atrina seminuda, 'geoduck' Panopea abbreviata, razor shells Solen tehuelchus, Ensis macha, Tagelus plebeius, and flat oyster Ostrea... Tipo: Book Section Palavras-chave: Marine molluscs; Potential resources; Life history; Ecology; Geographical distribution; Literature reviews; Life history; Ecology; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_12170; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_5083. Ano: 1998 URL: http://hdl.handle.net/1834/2582 Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco