Talitridae (AMPHIPODA, CRUSTACEA) in estuarine beaches of Paranaguá Bay, southern Brazil: spatial distribution and abundance

Authors

  • L. C. Rosa Pós-Graduação em Oceanografia Biológica – FURG
  • R. Aluizio Pós-Graduação em Zoologia – UFPR
  • C. A. Borzone Centro de Estudos do Mar – UFPR

DOI:

https://doi.org/10.14210/bjast.v11n1.p37-41

Abstract

The only family of Amphipoda with terrestrial representatives is the Talitridae. Four species are present along the Brazilian coast, three of which appear in the Bay of Paranaguá Complex, Atlantorchestoidea brasiliensis, Talorchestia tucurauna and Platorchestia monodi. Samples collected at the wrack line of eleven beaches of the complex showed that drift line was composed by vegetal fragments from mangroves and salt marshes, except for one beach where macroalgae prevail. T. tucurauna showed the highest densities, but occurred at only 5 beaches. This species was positively correlated with salinity suggesting weak osmotic tolerance, which could explain the restricted spatial distribution. In spite of the low abundance of P. monodi, the species occurred in all the eleven beaches. P. monodi was also positively correlated with the wrack biomass, probably using this material for protection against predation and desiccation.

Author Biography

C. A. Borzone, Centro de Estudos do Mar – UFPR

Centro de Estudos do Mar – UFPR, Caixa Postal 50002, Pontal do Sul, CEP 83255-000, Paraná, Brasil.

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Published

2008-11-12

Issue

Vol. 11 No. 1 (2007)

Section

Research Articles

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