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Composition of functional ecological guilds of the fish fauna of the internal sector of the Amazon Estuary, Pará, Brazil Anais da ABC (AABC)
MOURÃO,KEILA R.M.; FERREIRA,VALDIMERE; LUCENA-FRÉDOU,FLÁVIA.
The present study describes the spatial and temporal structure of the estuarine fish community in the internal sector of the Amazon Estuary. Samples were obtained in the main channels and tidal creeks of Guajará and Marajó Bays and Guamá River. A total of 41,516 fish specimens were collected, representing 136 taxa, 38 families and 12 orders. In the dry season, the mean salinity of the main channel increased along a limnic-marine gradient, between the Guamá River and the Marajó Bay. Species richness was lowest in the mouth of the Guamá River and in the right margin of the Guajará Bay. Fish species composition and environmental guilds differed markedly among areas: Migrants and Freshwater Stragglers were dominant in the Guamá River and the Guajará Bay, while...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Estuaries; Fish diversity; Functional ecology; Habitat; Salinity gradients.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000401783
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