Data/hora: 14/06/2024 09:54:02

Provedor de dados: 	Neotropical Ichthyology	
País: 	Brazil	
Título: 	Wide reproductive period of a long-distance migratory fish in a subtropical river, Brazil	
Autores: 	Zaniboni-Filho,Evoy; Ribolli,Josiane; Hermes-Silva,Samara; Nuñer,Alex P. O.	
Data: 	2017-01-01	
Ano: 	2017	
Palavras-chave: 	Dourado; Long-term study; Population parameters; Salminus brasiliensis; Uruguay River.	
Resumo: 	ABSTRACT Salminus brasiliensis is a potamodromous fish species that occurs in southern South American rivers. In spite of its ecological and economic relevance, information regarding the reproductive biology of S. brasiliensis is still scarce. This study used data from 18 years of continuous sampling in the Upper Uruguay River Basin, analyzing 718 adult fish (307 males, 243 females, 168 undefined) captured at different months of the year. The results showed that the reproductive timing for S. brasiliensis is wide in the Upper Uruguay River, with the occurrence of mature fish between the month of August and March and spawned individuals between July and May of the next year. These results were sustained by the increase of gonadal somatic relationship (GSR) from August. The reproductive timing of S. brasiliensis in the Upper Uruguay River may start between the middle winter and early spring (from late July to late September), and may extend until the late summer and middle fall (from the middle February to early May). These findings contribute to information on the general biology of S. brasiliensis and provide valuable knowledge to management programs and to conservation efforts of this fisheries resource.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000100215	
Editor: 	Sociedade Brasileira de Ictiologia	
Relação: 	10.1590/1982-0224-20160135	
Formato: 	text/html	
Fonte: 	Neotropical Ichthyology  v.15 n.1 2017	
Fonte: 	info:eu-repo/semantics/openAccess