Data/hora: 15/06/2024 21:54:58

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Population structure and condition factor of Pseudotothyris obtusa (hypoptopomatinae) from three coastal streams in southern Brazil	
Autores: 	Takeuti,Denise de Freitas; Verani,José Roberto; Aranha,José Marcelo Rocha; Menezes,Márcia Santos de.	
Data: 	1999-01-01	
Ano: 	1999	
Palavras-chave: 	Coastal streams; Pseudotothyris obtusa; Hypoptopomatinae; Population structure; Condition factor.	
Resumo: 	Population structure features and condition factor of Pseudotothyris obtusa were compared between three coastal streams in southern Brazil. Fishes were monthly collected through electric fishing and measured in the total length. Fifteen fishes from each stream were dissected to identify their sex. The structure in size, sex ratio and young/adults ratio of populations were analysed and the length-weight relationship was obtained. The condition factor (K1) and the relative condition factor (Kn) were calculated for each stream. Fishes were grouped in 11 lenght classes of 3mm. The intermediate and bigger size classes were preponderant in the "Mergulhão" and "Colônia Pereira" streams, and the smaller and intermediate ones in the "Ribeirão" stream. Females prevailed in bigger size classes, reached bigger lengths than males, and were preponderant in all streams. The condition factors (K1 and Kn) were different in all streams, indicating better condition and higher weight values in fishes from the "Mergulhão" and "Colônia Pereira" streams.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000400004	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89131999000400004	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.42 n.4 1999	
Fonte: 	info:eu-repo/semantics/openAccess