Data/hora: 10/06/2024 01:08:57

Biblioteca(s): 	Embrapa Pantanal.	
Data corrente: 	23/04/1996	
Data da última atualização: 	04/04/2017	
Autoria: 	HENRY, R.; SIMAO, C. A.	
Título: 	Spatial distribution of a bivale population (Diplodon delodontus expansus) (Kuster, 1856) in a small tropical reservoir.	
Ano de publicação: 	1985	
Fonte/Imprenta: 	Revista Brasileira Biologia, v.45, n.4, p.407-415, 1985.	
Idioma: 	Inglês	
Conteúdo: 	The variation in density and biomass of Diplodon delodontus expansus (Kuster, 1856) (Mollusca, Bivalvia) in function of depth, was studied in three transects in the Reservoir of The Rio Pardo (Botucatu, SP), in December, 1982. The results showed high densities and biomass near the margins and in deeper areas. At the same time, analysis of the sediment did not show any apparent influence on these variations. Other factors (such as temeprature, oxygen, conductivity of the water) did not seem to limit bivalve colonization. Patterns of population distribution of the species was estimated through the aggregation rate on six sampling sites as well as in the whole reservoir. On five of the six sampling sites, D. delodontus expansus presented a random distribution. A high clumped pattern was observed in the whole reservoir (98 sampling sites). These results were discuted with the data of literature. The possible limiting factors to colonization of the bivalves in the Reservoir of the Rio pardo are also discuted.	
Palavras-Chave: 	Bivalve; Reservatorio tropical; Tropical reservoir.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Pantanal (CPAP)	
Exemplares: 	CPAP - (31663-1) - ADD - SP - PP - SP14856 -  - 14856 - DIS