Interactions between the bottlenose dolphin (Tursiops truncatus) and the artisanal fishing on the Cagarras Island and adjacent areas, Rio de Janeiro, Brazil

Authors

  • Camilah Antunes Zappes
  • Carlos Eduardo Novo Gatts
  • Liliane Lodi
  • Artur Andriolo
  • Ana Paula Madeira Di Beneditto

DOI:

https://doi.org/10.13102/scb80

Abstract

The objective of this study was to identify the possible interactions and
conflicts between the bottlenose dolphin (Tursiops truncatus) and fishery practiced on the Cagarras Archipelago, Rio de
Janeiro State, Brazil, through their traditional knowledge. During 2008 and 2009, 22 interviews were performed with the
local fishermen and it was verified that they recognize the species. The Fuzzy logic (MATLAB) revealed that the species
T. truncatus is recognized through its occurrence area, color pattern and body size. All the interviewees related negative
interactions with the dolphin, as: “to scatter the shoal”, “to rip the gill net” and “to enmesh in the gill net”. The
entanglement is frequently registered by the fishermen, and the gill net is responsible for accidental capture in the area
around the archipelago. The carcass of the bottlenose dolphin can be thrown back into the sea, and the musculature can be
used as bait in the long-line fishery and/or consumed by the fishermen and their families.

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Published

2012-03-26

How to Cite

Zappes, C. A., Gatts, C. E. N., Lodi, L., Andriolo, A., & Di Beneditto, A. P. M. (2012). Interactions between the bottlenose dolphin (Tursiops truncatus) and the artisanal fishing on the Cagarras Island and adjacent areas, Rio de Janeiro, Brazil. SITIENTIBUS série Ciências Biológicas, 11(1), 24–30. https://doi.org/10.13102/scb80

Issue

Vol. 11 No. 1 (2011)

Section

Artigos

License

Sitientibus série Ciências Biológicas (SCB) is an open access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the BOAI definition of open access.