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Registros recuperados: 5
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Descripción macroscópica de los ovarios del abadejo manchado (Genypterus blacodes). Escala de maduración OceanDocs
Machinandiarena, L.; Villarino, M.F.; Cordo, H.D.; Macchi, G.J.; Pájaro, M..
The macroscopic ovaric stages of pink cuskeel (Genypterus blacodes) females from the Argentine Sea (SW Atlantic) are described. They were classified in five stages of development based on changes in the appearance and size of the ovary: juvenile (I), developing (II), spawning (III), spent (IV) and resting (V).
Tipo: Journal Contribution Palavras-chave: Fecundity; Ovaries; Developmental stages; Ultrastructure; Sexual maturity; Ovaries; Developmental stages; Ultrastructure; Fecundity; Sexual maturity; Http://aims.fao.org/aos/agrovoc/c_5456; Http://aims.fao.org/aos/agrovoc/c_2230; Http://aims.fao.org/aos/agrovoc/c_8045; Http://aims.fao.org/aos/agrovoc/c_15725; Http://aims.fao.org/aos/agrovoc/c_7016.
Ano: 2003 URL: http://hdl.handle.net/1834/2421
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Detección de un área de cría de la merluza de cola (Macruronus magellanicus)en el Mar Argentino. OceanDocs
Machinandiarena, L.; Ehrlich, M.D..
This is the first report of a longtail hake (Macruronus magellanicus)nursery ground. The results of more than ten research cruises conducted since 1990 in the southern patagonian shelf are presented in this study. The nursery ground (52°S to 55°30'S)was detected by the presence of larvae between 5.60 to 12.80 mm of standard length in November and December in that area, with depth ranging from 90 to 160 m.
Tipo: Journal Contribution Palavras-chave: Fish larvae; Nursery grounds; Ichthyoplankton surveys; Fish larvae; Nursery grounds; Http://aims.fao.org/aos/agrovoc/c_2924; Http://aims.fao.org/aos/agrovoc/c_25438.
Ano: 1999 URL: http://hdl.handle.net/1834/1877
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Distribución de huevos, larvas y prerreclutas de merluza (Merluccius hubbsi) en la Zona Común de Pesca Argentino-Uruguaya. Período 1999-2001 OceanDocs
Machinandiarena, L.; Brown, D.R.; Ehrlich, M.D.; Pájaro, M.; Dorado, J.; Teso, V..
Distribution and abundance of eggs, larvae and prerecruit stages of Merluccius hubbsi were evaluated to examine spawning, nursery and settlement areas in the Argentine-Uruguayan Common Fishing Zone during the 1999-2001 period. Larvae and prerecruit stages were more abundant at stations from 50 m to 100 m depth. The nursery area would extend from the 50 m isobath south of 37° S to the 200 m isobath northward where the shelf becomes narrower. In the whole sampling area small size prerecruits were caught; therefore, the whole zone should be considered as a potential settlement area.
Tipo: Journal Contribution Palavras-chave: Fish larvae; Fish eggs; Larval settlement; Nursery grounds; Spawning grounds; Abundance; Fish larvae; Nursery grounds; Spawning grounds; Http://aims.fao.org/aos/agrovoc/c_2924; Http://aims.fao.org/aos/agrovoc/c_25438; Http://aims.fao.org/aos/agrovoc/c_7277.
Ano: 2006 URL: http://hdl.handle.net/1834/2512
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Ichthyoplankton composition, distribution and abundance on the southern patagonian shelf and adjacent waters. OceanDocs
Ehrlich, M.D.; Sánchez, R.P.; de Ciechomski, J.D.; Machinandiarena, L.; Pájaro, M..
This paper reviews the information on pelagic and demersal fish eggs and larvae, describing the distribution and seasonality of different species and their arrangement in icthyoplankton assemblages in the Southern patagonian waters. It also reports on 11 surveys conducted by INIDEP during 1992-1995. A total of 488 ichthyoplankton samples were analyzed. Fish eggs have been recognized in 47. of all ichthyoplankton samples. They belong to three species: Coelorhynchus fasciatus, Macrourus whitsoni and Micromesistius australis. Fish larvae of 23 species and 17 families have been identified in 96. of all samples analyzed. Spawning of most species begins in autumn, and progresses through winter, when the southern blue whiting and grenadier fish contribute to...
Tipo: Journal Contribution Palavras-chave: Ichthyoplankton; Fish larvae; Fish eggs; Seasonal distribution; Abundance; Fish larvae; Http://aims.fao.org/aos/agrovoc/c_2924.
Ano: 1999 URL: http://hdl.handle.net/1834/2574
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Talla de primera madurez del abadejo (Genypterus blacodes) en el Atlántico Sudoccidental. OceanDocs
Cordo, H.D.; Machinandiarena, L.; Macchi, G.J.; Villarino, M.F..
The length at first maturity (Lm50. ) and the maturity ogive are very important parameters in stock assessment. In this paper the ling Genypterus blacodes females Lm50. is estimated with frequencies of mature fish determined by microscope diagnosis of ovaries collected during the spawning season (SW Atlantic). The Lm50. of ling was estimated at 70.5 cm of total length (TL), which corresponds to an age of 4.5 years. The maturity process occurs between 63 and 78 cm TL (between 3.7 and 5.4 years).
Tipo: Journal Contribution Palavras-chave: Sexual maturity; Ovaries; Stock assessment; Ovaries; Stock assessment; Sexual maturity; Http://aims.fao.org/aos/agrovoc/c_5456; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_7016.
Ano: 2002 URL: http://hdl.handle.net/1834/2544
Registros recuperados: 5
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