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	Provedor de dados OceanDocs (4) Autor Colonello, J.H. (4) Cortés, F. (1) Díaz de Astarloa, J.M. (1) Figueroa, D.E. (1) Mabragaña, E. (1) Massa, A.M. (1) Scenna, L.B. (1) Mais... Palavra-chave Http://aims.fao.org/aos/agrovoc/c_6507 (3) Reproduction (3) Sexual maturity (3) Http://aims.fao.org/aos/agrovoc/c_7016 (2) Marine environment (2) Marine fish (2) Abundance (1) Animal reproductive organs (1) Dipterus chilensis (1) Eggs (1) Fecundity (1) Feeding behaviour (1) Fishery surveys (1) Food preferences (1) Histology (1) Http://aims.fao.org/aos/agrovoc/c_10778 (1) Http://aims.fao.org/aos/agrovoc/c_2502 (1) Http://aims.fao.org/aos/agrovoc/c_29449 (1) Http://aims.fao.org/aos/agrovoc/c_3024 (1) Http://aims.fao.org/aos/agrovoc/c_4610 (1) Mais... Tipo do documento Journal Contribution (2) Theses and Dissertations (2) Ano 2014 (1) 2009 (2) 2005 (1) País Belgium (4) Idioma Espanhol (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Ecología reproductiva y hábitos alimentarios del pez angel, Squatinaguggenheim (Chondrichthyes: Squatinidae), en el Distrito Biogeográfico Bonaerense, entre 34° y 42°S OceanDocs Colonello, J.H.. The reproductive ecology and feeding habits of Squatina guggenheim inthe SW Atlantic ecosystem between 34° and 42°S were studied. For the reproductive study, 423 individuals were obtained in 12 research cruises between 2000 and 2004. Reproductive parameters were analyzed in two oceanographic systems, the Rio de La Plata estuary (ERLP), Argentine-Uruguayan waters, and the El Rincon (ER), Argentina, Buenos Aires Prov. The feeding habits were analyzed using 329 stomach contents of individuals taken in ERLP (264)and ER (65 ER). For this study the individuals were reproductively (adults and juveniles)and seasonality (fall-winter and spring-summer)grouped. In ERLP the maximum total length was 920 mm for females and 865mm for males; in ER the maximum TL for... Tipo: Theses and Dissertations Palavras-chave: Feeding behaviour; Food preferences; Stomach content; Sexual maturity; Reproduction; Feeding behaviour; Food preferences; Sexual maturity; Reproduction; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_3024; Http://aims.fao.org/aos/agrovoc/c_7016; Http://aims.fao.org/aos/agrovoc/c_6507. Ano: 2005 URL: http://hdl.handle.net/1834/2596 Ecología reproductiva de tres batoideos (Chondrichthyes): iAtlantoraja castelnaui (Rajidae), Rioraja agassizi (Rajidae) y Zapteryx brevirostris (Rhinobatidae). Implicancias de distintas estrategias reproductivas en un escenario de explotación comercial intensiva OceanDocs Colonello, J.H.. The reproductive ecology of the Chondrichthyans Atlantoraja castelnaui (spotback skate), Rioraja agassizi (rio skate) and iZapteryx brevirostris (lesser guitarfish) is analyzed in this study. The two first are oviparous species that attain 168 mm and 768 mm of maximum total length (MTL), respectively. The third is a viviparous lecitotrophic ray that grows to a MTL of 720 mm. The examined material came from the purchase of samples in the Mar del Plata Port (Buenos Aires prov., Argentina) and from research cruises carried out by the National Institute of Fisheries Research and Development (INIDEP). Two work lines were developed to analyze the reproductive ecology and to validate the reproductive stages of these species, one based on macroscopic analysis of... Tipo: Theses and Dissertations Palavras-chave: Marine fish; Reproduction; Animal reproductive organs; Sexual maturity; Histology; Reproduction; Animal reproductive organs; Sexual maturity; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_29449; Http://aims.fao.org/aos/agrovoc/c_7016. Ano: 2009 URL: http://hdl.handle.net/1834/3546 Clave de identificación de cápsulas de huevos de condrictios del Mar Argentino OceanDocs Mabragaña, E.; Figueroa, D.E.; Scenna, L.B.; Díaz de Astarloa, J.M.; Colonello, J.H.; Massa, A.M.. Twenty eight species of oviparous chondrichthyans were reported on the Argentine Continental Shelf (SW Atlantic). The egg cases laid on the sea bed provide useful information to identify species, eggs laying areas and seasons. Based on the analysis of 155 egg cases corresponding to 21 chondrichthyan species, an illustrated field guide for a correct identification is presented. Tipo: Journal Contribution Palavras-chave: Reproduction; Oviparity; Eggs; Identification keys; Marine fish; Marine environment; Eggs; Marine environment; Reproduction; Http://aims.fao.org/aos/agrovoc/c_2502; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_6507. Ano: 2009 URL: http://hdl.handle.net/1834/3459 Parámetros reproductivos de la raya Dipturus chilensis en el atlántico sudoccidental (34ºS-48ºS) OceanDocs Colonello, J.H.; Cortés, F.. A total of 807 Dipturus chilensis specimens (448 males and 359 females) caught in research cruises performed by the National Institute for Fisheries Research and Development (INIDEP) during 2011 and 2012 were analyzed. The cruises were carried out between (34°S-48°S) and 50-313 m depth. Mean size at first maturity (TL50) was estimated at 780 mm and 908 mm TL for males and females, respectively, values that represented about 80% of the respective maximum total length observed. Besides, latitudinal differences in sexual maturity estimates were detected. The total number of 4-7 reproductive seasons and 42-52 follicles or individuals of maximum annual potential fecundity estimated in this paper allow to suggest that each female would produce less than 300 eggs... Tipo: Journal Contribution Palavras-chave: Morphometry; Sexual maturity; Fecundity; Fishery surveys; Abundance; Dipterus chilensis; Marine environment. Ano: 2014 URL: http://hdl.handle.net/1834/5820 Registros recuperados: 4 Primeira ... 1 ... Última

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