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	Provedor de dados Neotropical Ichthyology (2) Autor Irigoyen,Alejo J. (2) Argemi,Federico (1) Ehrlich,Martín D. (1) Jaureguizar,Andrés J. (1) Macchi,Gustavo J. (1) Palma,Elbio D. (1) Trobbiani,Gastón (1) Venerus,Leonardo A. (1) Villanueva-Gomila,Gabriela L. (1) Mais... Palavra-chave Argentina-Brazil (1) Batch fecundity (1) Distribution pattern (1) Gonadosomatic index (1) Habitat preference (1) Length at 50% maturity (1) Migration (1) Rocky-reef fishes (1) Shelf water (1) Southwest Atlantic (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2015 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Large-scale migration of a school shark, Galeorhinus galeus , in the Southwestern Atlantic Neotropical Ichthyology Jaureguizar,Andrés J.; Argemi,Federico; Trobbiani,Gastón; Palma,Elbio D.; Irigoyen,Alejo J.. ABSTRACT Knowledge of the spatial and temporal distribution patterns of chondrichthyans is critical for their effective management. In this study we report and analyze a large-scale latitudinal migration (~ 1,425 km) of a female school shark in the Southwestern Atlantic shelf where it is currently classified as Critically Endangered. During the austral summer (February 15, 2015), ninety-four school sharks were captured (75 females and 19 males) and tagged with fin tags in Nuevo Gulf (~ 42°43’S, 64°53’W, Argentina). A female of 112 cm total length was recaptured in Uruguayan shelf waters in the austral winter (August 17, 2015). This long displacement represents the first direct evidence to support Vooren and Lucifora’s hypothesis of a single transnational... Tipo: Info:eu-repo/semantics/article Palavras-chave: Argentina-Brazil; Distribution pattern; Habitat preference; Migration; Shelf water. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000100201 The reproductive biology of Pinguipes brasilianus Cuvier, 1829 (Osteichthyes: Pinguipedidae) in temperate rocky reefs of Argentina Neotropical Ichthyology Villanueva-Gomila,Gabriela L.; Macchi,Gustavo J.; Ehrlich,Martín D.; Irigoyen,Alejo J.; Venerus,Leonardo A.. ABSTRACT Pinguipes brasilianus is a conspicuous and abundant rocky-reef fish inhabiting the Northern Patagonian gulfs of Argentina, Southwest Atlantic. This study describes its reproductive biology in this region. We made macroscopic and histological descriptions of the testis and ovary development, analyzed the evolution of the gonadosomatic index (GSI) in both sexes throughout the year, and estimated fecundity and length at 50% maturity for females. Pinguipes brasilianus is a multiple spawner with indeterminate annual fecundity and an extended reproductive season, encompassing austral spring and summer. Low GSI values in males (monthly means ranged between 0.11% and 0.75%) and low relative fecundity in female fish (between 2 and 44 oocytes/g) are... Tipo: Info:eu-repo/semantics/article Palavras-chave: Batch fecundity; Gonadosomatic index; Length at 50% maturity; Rocky-reef fishes; Southwest Atlantic. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000400733 Registros recuperados: 2 Primeira ... 1 ... Última

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