Data/hora: 06/06/2024 02:32:57

Provedor de dados: 	83	
País: 	Brazil	
Título: 	Estimates of population parameters and consumption/biomass ratio for fishes in reservoirs, Paraná State, Brazil	
Autores: 	Gubiani,Éder André; Gomes,Luiz Carlos; Agostinho,Angelo Antonio.	
Data: 	2012-01-01	
Ano: 	2012	
Palavras-chave: 	Ecosystem approach; Lentic ecosystems; Population's variables.	
Resumo: 	Consumption, natural mortality, and growth are important parameters for the construction for both fisheries and ecosystems models. We estimated k (growth constant of the von Bertalanffy's function), Loo 1(asymptotic length), Woo (asymptotic weight), Ar (caudal fin index), M (natural mortality), and Q/B (consumption/biomass ratio) for several fish species inhabiting reservoirs. We explored possible relationships among these parameters for 135 fish species sampled in thirty reservoirs in the State of Paraná, southern Brazil. Maximum length (Lmax) varied from 2.60 to 79.00 cm, Loo from 2.73 to 85.05 cm, Woo from 0.23 to 9,490.26 g, k from 0.01 to 2.38 yr-1, Ar from 0.03 to 3.60, M from 0.16 to 2.82 yr-1, and Q/B from 3.31 to 67.18. Significant correlations were observed between most pairs of parameters, except for Ar and k, Ar and Loo , and for M and Q/B. The estimates presented here may be useful for constructing Ecopath models, both in Brazil and other tropical regions, where the use of ecosystem modeling is growing.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000100017	
Editor: 	Sociedade Brasileira de Ictiologia	
Relação: 	10.1590/S1679-62252012000100017	
Formato: 	text/html	
Fonte: 	Neotropical Ichthyology  v.10 n.1 2012	
Fonte: 	info:eu-repo/semantics/openAccess