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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
01/09/1995 |
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Data da última atualização: |
05/04/2017 |
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Autoria: |
PEREZ, L. E. |
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Título: |
Uso del habitat por la comunidad de peces de un rio tropical asociado a un bosque. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
Memoria Sociedad Ciencias Naturales La Salle, v.121, n.44, p.143-162, 1984. |
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Idioma: |
Espanhol |
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Conteúdo: |
The relationship between the characteristics of the habitat and the structure of any community of fish has been demonstrated by several authors. In order to verify whether this relationships exists at lower levels of organisation, an analysis was made of sub-units of a tropical forested creek whose hydrogeological characteristics produce a particularly stable ecosystem. The aquatic habitat was subdivided into five types of microhabitats, classified according to the following variables: aquatic vegetation, velocity of current, organic material in the substratum, depth and incident light. The associations of fish found in each microhabitat were analysed separately. It is suggested that the higly significant structural differences which were verified are a consequence of the different patterns of habitats selection and habitat use which were observed in different species of fish. A positive correlation is shown between the complexity of the habitat and three structural parameters of the associations: diversity (r = 0,71; P<0.001) species richness (r = 0.70; P<0.001) and equitability (r = 0.61; P<0.005). |
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Palavras-Chave: |
Bosque; Community; Comunidade; Forest; Rio tropical; Tropical river. |
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Thesagro: |
Habitat; Peixe. |
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Thesaurus Nal: |
fish. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01729naa a2200229 a 4500
001 1786035
005 2017-04-05
008 1984 bl --- 0-- u #d
100 1 $aPEREZ, L. E.
245 $aUso del habitat por la comunidad de peces de un rio tropical asociado a un bosque.
260 $c1984
520 $aThe relationship between the characteristics of the habitat and the structure of any community of fish has been demonstrated by several authors. In order to verify whether this relationships exists at lower levels of organisation, an analysis was made of sub-units of a tropical forested creek whose hydrogeological characteristics produce a particularly stable ecosystem. The aquatic habitat was subdivided into five types of microhabitats, classified according to the following variables: aquatic vegetation, velocity of current, organic material in the substratum, depth and incident light. The associations of fish found in each microhabitat were analysed separately. It is suggested that the higly significant structural differences which were verified are a consequence of the different patterns of habitats selection and habitat use which were observed in different species of fish. A positive correlation is shown between the complexity of the habitat and three structural parameters of the associations: diversity (r = 0,71; P<0.001) species richness (r = 0.70; P<0.001) and equitability (r = 0.61; P<0.005).
650 $afish
650 $aHabitat
650 $aPeixe
653 $aBosque
653 $aCommunity
653 $aComunidade
653 $aForest
653 $aRio tropical
653 $aTropical river
773 $tMemoria Sociedad Ciencias Naturales La Salle$gv.121, n.44, p.143-162, 1984.
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Registro original: |
Embrapa Pantanal (CPAP) |
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