Characterization of the fish fauna in three tidal creeks of Paciência River estuary, São Luís Island, Maranhão State

Authors

  • Milton G. Silva Júnior Universidade Federal do Pará
  • Antônio Carlos L. Castro Universidade Federal do Maranhão
  • Ulrich Saint-Paul Leibniz Center for Tropical Marine Ecology
  • Heliene Leite Ribeiro Porto Universidade Federal do Maranhão

DOI:

https://doi.org/10.32360/acmar.v46i1.886

Keywords:

fish fauna, tidal creek, estuarine gradient, Maranhão State

Abstract

Tidal creeks in estuarine ecosystems are important areas of refuge, feeding and growth for various fish species.  The aim of the present study was to determine the spatial and temporal distribution of fish fauna and explain the behavioral  and ecological characteristics of species that occupy tidal creeks. Sampling was carried out bimonthly between January,  2006 and September, 2007 during ebb tide. Using block nets and gillnets, 12,219 individuals belonging to 55 species of  fish. Sciaenidae, Ariidae, Carangidae, Engraulidae and Mugilidae were the families with the greatest species richness. Ten  species dominated the samples, accounting for 81.3% of the total catch, highlighting  Ariopsis bonillai  and Cetengraulis  edentulus , which made a major contribution to the formation of groups of similarity . Stellifer naso  and Cynoscion  acoupa were responsible for the greatest differences in the density of the fish assemblage. Regarding the maturation stage,  66% of the caught fish were juveniles. Among the species that occurred in all four stages of maturation, only Cathorops  spixii showed a high adult density due to their reproductive migration.

Author Biographies

Milton G. Silva Júnior, Universidade Federal do Pará

Bolsista do CNPq. Doutorando em Ecologia Aquática e Pesca, Departamento de Biologia, Universidade Federal do Pará.

Antônio Carlos L. Castro, Universidade Federal do Maranhão

Departamento de Oceanografia e Limnologia, Universidade Federal do Maranhão.

Ulrich Saint-Paul, Leibniz Center for Tropical Marine Ecology

Leibniz Center for Tropical Marine Ecology (ZMT).

Heliene Leite Ribeiro Porto, Universidade Federal do Maranhão

Departamento de Oceanografia e Limnologia, Universidade Federal do Maranhão.

Published

2013-06-01

Issue

Section

Artigos originais