Fish communities on artificial reefs off Ceará State, Brazil

Authors

  • Raimundo Nonato de Lima Conceição Professor Adjunto do Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza.
  • José Arlindo Pereira Professor Adjunto do Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Campus do Pici, Fortaleza.

DOI:

https://doi.org/10.32360/acmar.v39i1-2.6377

Keywords:

artificial reefs, fish communities, indices of diversity, equitability and species richness.

Abstract

The present study focuses on the fish communities observed at artificial reefs built off Itapipoca, Fortaleza and Beberibe counties, in Ceará State, from 1995 to 2000. The sampling was performed by monitoring commercial catches at the reef locations and by visual assessments carried out by divers. From the abundance data distributed over two-month periods, the indices of species diversity (H’), equitability (J’) and species richness (S) were calculated. A total of 40 species belonging to 19 families were identified. There was a significant difference in the species diversity between the newer reefs of Fortaleza county and the older reefs of Beberibe county. The equitability index ranged from 85% to 92%. The number of species found on Itapipoca, Fortaleza and Beberibe reefs were 38, 33 and 37, respectively.

Published

2017-02-06

Issue

Section

Artigos originais