Ten-year variations in population structure of pink-shrimp in a southwestern Atlantic Bay affected by highway construction

  • Felipe Freitas Jr UNIVALI; Centro de Ciências Tecnológicas da Terra e do Mar
  • Hélio A. A Fracasso Universidade Federal de São Carlos; Departamento de Hidrobiologia
  • Joaquim O Branco UNIVALI; Centro de Ciências Tecnológicas da Terra e do Mar
  • Martin L Christoffersen Universidade Federal da Paraíba; Departamento de Sistemática e Ecologia
Keywords: Shrimp, Farfantepenaeus brasiliensis, Farfantepenaeus paulensis, structure of populations, environmental impacts, southern Brazil

Abstract

OBJECTIVES: Population structures of Farfantepenaeus brasiliensis and F. paulensis, consisting mainly of juveniles, were evaluated during the construction of an expressway along a mangrove area. Estuarine regions in southern Brazil function as sites for reproduction, nursery and growth of a variety of organisms, including two of the most important species of shrimp for fisheries in the southwestern Atlantic. Shrimps were collected in Saco dos Limões creek, Baía-Sul, Florianópolis, State of Santa Catarina, four times a year, by day and night, between 1997 and 2006. Fluctuations in the abundances of shrimp appear to be related to their life cycles, with largest abundances in Summer and Spring, rather than to impacts promoted by dredging activities during the expressway construction.

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Published
2011-12-01
How to Cite
Freitas Jr, F., Fracasso, H., Branco, J., & Christoffersen, M. (2011). Ten-year variations in population structure of pink-shrimp in a southwestern Atlantic Bay affected by highway construction. Brazilian Journal of Oceanography, 59(4), 377-390. https://doi.org/10.1590/S1679-87592011000400008
Section
naodefinida