Data/hora: 09/06/2024 14:39:08

Biblioteca(s): 	Embrapa Pantanal.	
Data corrente: 	27/08/1996	
Data da última atualização: 	03/04/2017	
Autoria: 	WERNER, E. E.; HALL, D. J.; LAUGHLIN, D. R.; WAGNER, D. J.; WILSMANN, L. A.; FUNK, F. C.	
Título: 	Habitat partitioning in a freshwater fish community.	
Ano de publicação: 	1977	
Fonte/Imprenta: 	Journal Fisheries Research Board Canadian, v.34, n.3, p.360-370, 1977.	
Idioma: 	Inglês	
Conteúdo: 	The patterns of habitat utilization in the litoral zone fish community of two small southern Michigan lakes were examined. Abundance and habitat use of the fish were quantified by underwater transect censuses. The sunfishes (Centrarchidae) dominnated the communities numerically and by weight, with two species, the bluegill (Lepomis macrochirus) and largemounth bass (Micropterus salmoides) accounting for 85% of the community biomass. Spatial (habitat) segregation of species was evident along gradients of depth (distance from shore), vertical haight in the water column, and vegetational strucure. Several species showed intraspecific differences in the spatial distribution of size-classes. Comparative analyses of habitat use in the two lakes suggest that small size-classes are confined by predation to areas of dense cover and that within these areas competition determines space utilization by different species. The patterns of habitat use are discussed in relation to the food habitats and morphology of species in this community. Only one clear case of segregation of two species by food size occurs (bass and bluegill); most other species segregate predominantly by habitat. The rarer centrarchids show strong niche complementary with the condominant bass and bluegill.	
Palavras-Chave: 	Community; Comunidade.	
Thesagro: 	Habitat; Peixe.	
Thesaurus Nal: 	fish.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Pantanal (CPAP)	
Exemplares: 	CPAP - (32887-1) - ADC - SP - PP - SP14953 -  - 14953 - DIS