Organização das assembléias de peixes em riachos da bacia do rio Iguatemi, Estado do Mato Grosso do Sul


Autoria(s): Súarez, Yzel Rondon; Petrere Jr., Miguel
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

27/05/2014

27/05/2014

01/04/2005

Resumo

Aiming to describe the patterns of the fish assemblages organization in streams of the Iguatemi River basin we sampled streams with seine nets and sieves from November/1999 to August/2000. We collected 567 individuals distributed in 24 species. We detected statistically significant influence of the streams characteristics upon species diversity. The species composition was hardly explained by the physical and chemical characteristics of the streams. Then we detected significant influence of the fish ecomorphology in the species occurrence (Mantel r = -0.34; P = 0.04), but not in the distribution of its abundance (Mantel r = -0.21; P = 0.07). We verified through the species co-occurrence index (C-score) that its composition in the studied streams is stochastic.

Formato

161-167

Identificador

http://dx.doi.org/10.4025/actascibiolsci.v27i2.1350

Acta Scientiarum - Biological Sciences, v. 27, n. 2, p. 161-167, 2005.

1679-9283

http://hdl.handle.net/11449/68191

10.4025/actascibiolsci.v27i2.1350

2-s2.0-33144461859

2-s2.0-33144461859.pdf

Idioma(s)

por

Relação

Acta Scientiarum: Biological Sciences

Direitos

openAccess

Palavras-Chave #Community ecology #Fishes #Iguatemi River Basin #Streams #Brazil #community ecology #fish #geography #nonhuman #population abundance #river basin #species composition #species diversity #statistical analysis #stream (river) #Pisces
Tipo

info:eu-repo/semantics/article