Hábitos alimentares de Sotalia fluviatilis no estuário amazônico - DOI: 10.4025/actascibiolsci.v28i4.173

Sandra Beltrán Pedreros; Tatyanna Mariucha de Araújo Pantoja

doi:10.4025/actascibiolsci.v28i4.173

**Feeding habits of Sotalia fluviatilis in the Amazonian Estuary**- DOI: 10.4025/actascibiolsci.173

Authors

Sandra Beltrán Pedreros UNILASALLE Author
Tatyanna Mariucha de Araújo Pantoja UNILASALLE Author

DOI:

https://doi.org/10.4025/actascibiolsci.v28i4.173

Keywords:

Sotalia fluviatilis, estuário amazônico, hábitos alimentares de golfinhos

Abstract

In this paper we present an analysis of the fifty S. fluviatilis feeding habits in the Amazonian Estuary. Animals were bycaught by the artisanal fishing fleet between 1996 and 2001. Feeding habits were analyzed by prey occurrence frequency (%F) and number percentage and stomachs contents preys similarity between marine and freshwater fish species present in the Amazonian Estuary. Thirteen fish species were identified (%F= 86.6), the most significant families were Sciaenidae (32%), Trichiuridae (26%) e Ariidae (16%), and four crustaceans species (%F=26). S. fluviatilis feeding habits did not differ by gender and in general, calves had higher prey diversity than juveniles and adults. The similarity was high (0.89) between estuarine S. fluviatilis feeding habits and the fishes species present in the Amazonian Estuary when the environment is mostly marine.

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Author Biography

Sandra Beltrán Pedreros, UNILASALLE

Graduada em Biologia Marinha pela Universidad Jorge Tadeo Lozano (1990), com mestrado em Ciências Biológicas na área de concentração de Biologia de Ãgua Doce e Pesca Interior pelo Instituto Nacional de Pesquisas da Amazônia (1998). Atualmente é professor da UNILASALLE e pesquisador do Instituto Nacional de Pesquisas da Amazônia. Tem experiência na área de Ecologia, com ênfase em Biologia Pesqueira e dinâmica populacional de peixes e mamíferos aquáticos; assim como em estudos de etnoecologia, etnobiologia, interação golfinhos-pescarias, manejo e conservação de mamíferos aquáticos. Currículo Lattes

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Published

2006-11-16

Issue

Vol. 28 No. 4 (2006)

Section

Ecology and Limnology

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How to Cite

Feeding habits of Sotalia fluviatilis in the Amazonian Estuary- DOI: 10.4025/actascibiolsci.173. (2006). Acta Scientiarum. Biological Sciences, 28(4), 389-393. https://doi.org/10.4025/actascibiolsci.v28i4.173