Data/hora: 02/06/2024 13:22:03

Provedor de dados: 	83	
País: 	Brazil	
Título: 	Reproductive and population dynamics of the Bay whiff Citharichthys spilopterus Günther, 1862 (Pleuronectiformes: Paralichthyidae) in the Mamanguá Inlet, Rio de Janeiro, Brazil	
Autores: 	Dias,June Ferraz; Fiadi,Carla Bertolucci; Silbiger,Helcy Lylian Nogueira; Soares,Lucy Satiko Hashimoto.	
Data: 	2005-09-01	
Ano: 	2005	
Palavras-chave: 	Population structure; Reproduction; Gonadosomatic relationship; Gonadal maturation; Southeast Brazil.	
Resumo: 	Bay whiffs, Citharichthys spilopterus, were sampled in Mamanguá Inlet between March 1990 and March 1992 for evaluation of its reproductive dynamic. Bay whiffs presented a crescent gradient of abundance from the deepest to the shallowest stations. The mean total length by oceanographic station showed a clear tendency of a relationship between bigger sizes and higher depths. Males predominated along the studied period and on the smallest length groups. Higher values of alometric condition factor, gonadosomatic relationship and spawning stage of maturity indicated a higher degree of development of the gonads on March and November. Histological analysis showed spawning females in March and May 1990 in the stations closer to the mouth of the Inlet, and spawned females with old post-ovulatory follicles and high frequency of atresia at shallow stations, suggesting a migration to shallow and protected areas after spawning. Length of first gonadal maturation was 117 mm TL. We could conclude that C. spilopterus completes its life cycle within the Mamanguá Inlet, spawning during autumn (March to May) and possibly November.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000300009	
Editor: 	Sociedade Brasileira de Ictiologia	
Relação: 	10.1590/S1679-62252005000300009	
Formato: 	text/html	
Fonte: 	Neotropical Ichthyology  v.3 n.3 2005	
Fonte: 	info:eu-repo/semantics/openAccess