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| Registros recuperados: 45 | |
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| Brunetti, N.E.; Ivanovic, M.L.; Elena, B.. |
| An update of the knowledge on the three most important ommastrephid species that inhabit the SW Atlantic: Illex argentinus, Martialia hyadesi and Ommastrephes bartramii, is presented. Up to the moment, only I.argentinus was intensively studied. Its distribution, population structure, reproduction, growth and paralarval development are analyzed, togheter with other aspects of its biology, such as feeding, predators and parasites. Also its utilization for human consmption is considered. Regarding M.hyadesi and O.bartrami, information on their distribution and biology is presented. |
| Tipo: Book Section |
Palavras-chave: Animal morphology; Geographical distribution; Reproduction; Fecundity; Growth; Feeding; Predators; Parasites; Population structure; Geographical distribution; Growth; Feeding; Predators; Population structure; Animal morphology; Reproduction; Fecundity; Parasites; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_6163; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_421; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_15725; Http://aims.fao.org/aos/agrovoc/c_5574. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/2576 |
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| Calvo, J.; Morriconi, E.; Orler, P.. |
| The theoretical aspects of reproductive strategies and life histories are analyzed. The gonadal structures and the main features of gametogenesis of bivalves and echinoids are described. Research on the reproductive characteristics and gametogenic cycles of the bivalve molluscs in the Argentinian littoral and the echinoid Loxechinus albus is reviewed. Special references to Mytilus edulis, Aulacomya ater, Brachidontes purpuratus, Aequipecten tehuelchus, Zygochlamys patagonica, Ostrea puelchana, Clausinella gayi, Protothaca antiqua, Eurhomalea exalbida and Mesodesma mactroides are made. Analysis of reproductive cycles includes histological and ponderal descriptions of gonadal variations. The main trend found is the partial and multiple spawning episodes.... |
| Tipo: Book Section |
Palavras-chave: Hermaphroditism; Gametogenesis; Life cycle; Marine molluscs; Reproduction; Reproductive cycle; Hermaphroditism; Gametogenesis; Life cycle; Reproduction; Http://aims.fao.org/aos/agrovoc/c_3571; Http://aims.fao.org/aos/agrovoc/c_27931; Http://aims.fao.org/aos/agrovoc/c_4317; Http://aims.fao.org/aos/agrovoc/c_6507. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/2581 |
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| Re, M.E.. |
| Four species of the family Octopodidae were reported to occur along the Argentine coast Octopus tehuelchus, Eledone massyae, Enteroctopus megalocyathus and Robsonella fontaniana. The first two are distributed from Brazil to south of Rawson and San Jorge Gulf, respectively, in warm-temperate waters. E.megalocyathus and R.fontaniana are of Subantarctic origin, the first ranging from San Matias Gulf to Magellan Strait, the Beagle Channel and Malvinas Islands; R.fontaniana is distributed from San Matias Gulf southwards, with records in North Patagonian and San Jorge Gulfs, Chile and Peru. A synopsis of information about taxonomical status, patterns of geographic distribution and biological aspects of these four coastal octopodids is given. |
| Tipo: Book Section |
Palavras-chave: Animal morphology; Feeding; Geographical distribution; Growth; Life cycle; Parasites; Reproduction; Feeding; Geographical distribution; Growth; Animal morphology; Life cycle; Parasites; Reproduction; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_421; Http://aims.fao.org/aos/agrovoc/c_4317; Http://aims.fao.org/aos/agrovoc/c_5574; Http://aims.fao.org/aos/agrovoc/c_6507. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/2583 |
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| Tagliafico, A.; González, L.W.; Eslava, N.. |
| En Venezuela, la sardina (Sardinella aurita) es considerada un recurso estratégico por representar una fuente protéica de bajo costo y sustentar la pesquería artesanal de mayor importancia socio-económica el país. Por tal razón, los objetivos del presente trabajo fueron estimar los parámetros de crecimiento y aspectos reproductivos para contribuir a la evaluación y manejo de la pesquería de la sardina. Se colectaron 3960 individuos mediante muestreos mensuales de las capturas realizadas con chinchorro sardinero en el sureste de la Isla de Margarita, entre enero y diciembre de 2003. La longitud asintótica (L∞=26 cm) y el coeficiente de crecimiento (K=1.1 año-1) fueron estimados usando la rutina ELEFAN I del paquete FiSAT, conduciendo a un valor de índice de... |
| Tipo: Journal Contribution |
Palavras-chave: Growth; Reproduction; Growth; Reproduction; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_6507. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/3483 |
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| Braun, M.; Claramunt, G.; Reyes, H.; Catasti, V.; Montenegro, C.; Baros, V.; Díaz, E.; Pizarro, J.; Pizarro, P.. |
| El informe contiene los resultados correspondientes al desarrollo del crucero Módulo huevos y Módulo adultos del Proyecto FIP 2003-07. De conformidad con la metodología planteada en la propuesta técnica y con el fin de estimar los parámetros biológicos que requiere la aplicación del Método de Producción de Huevos, a saber: fecundidad media poblacional, frecuencia de desove, proporción sexual, producción diaria de huevos y peso estimado de hembras maduras, se realizaron los respectivos muestreos para el recurso anchoveta, durante el período de máxima actividad reproductiva del año 2003. |
| Tipo: Report |
Palavras-chave: Stock assessment; Reproduction; Eggs; Fecundity; Pelagic fisheries; Spawning; Eggs; Stock assessment; Spawning; Reproduction; Fecundity; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_2502; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_14490; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_15725; Http://aims.fao.org/aos/agrovoc/c_5659. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/1732 |
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| Vallejo-F., M.. |
| Argopecten circularis (Sowerby, 1835) fecunddity was estimated during spawnings of February-March 1989 and March-May 1990 in Bahía Concepción, Baja California sur, México. In general, the number of oocytes released during the spawning of Argopecten circularis were potentially relatad to shell height. The calculated average oocyte wet weight during the maturity period was 8.9033x10^-8 g. Spawning ocurred ¡n individuáis 44 to 77 mm in height. The highest fecundity occurred ¡n bivalves 58 to 77 mm ¡n height. Mean fecundity obtained for all heigts by regression analysis during spawning in February-march 1989 was 12, 102, 243 oocytes. In April-May of the same year, there were 17, 917, 006 oocytes, and during March-May 1990, 16, 938, 117 oocytes. |
| Tipo: Journal Contribution |
Palavras-chave: Fecundity; Reproduction; Fecundity; Reproduction; Http://aims.fao.org/aos/agrovoc/c_15725; Http://aims.fao.org/aos/agrovoc/c_6507. |
| Ano: 1995 |
URL: http://hdl.handle.net/1834/3817 |
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| Registros recuperados: 45 | |
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