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Sexuality and Early Development in Aquatic Organisms

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SEDAO 1:1-12 (2013)  -  DOI:

Population dynamics and reproductive traits of the ornamental crab Porcellana sayana: implications for fishery management and aquaculture

J. Antonio Baeza1,2,*, Michele Furlan3, Ariádine C. Almeida3,4, Samara de Paiva Barros-Alves3,5, Douglas F. R. Alves3,5, Vivian Fransozo3,6

1Smithsonian Marine Station at Fort Pierce, Fort Pierce, Florida 34949, USA
2Departamento de Biología Marina, Facultad de Ciencias del Mar, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile
3NEBECC (Crustacean Biology, Ecology and Culture Study Group), Departamento de Zoologia, Instituto de Biociências, Universidade Estadual Paulista, Botucatu, São Paulo, CEP 18618-970, Brazil
4Instituto de Biologia, Universidade Federal de Uberlândia, Campus Umuarama, Rua Ceará, s/n, Uberlândia, Minas Gerais, CEP 38400-902, Brazil
5Laboratório de Biologia Marinha - LabBMar, Instituto Básico de Biociências - IBB, Universidade de Taubaté - UNITAU, Av. Tiradentes, 500, Taubaté, São Paulo, CEP 12.030-180, Brazil
6Departamento de Ciências Naturais – Zoologia, Universidade Estadual do Sudoeste da Bahia (UESB), Campus de Vitória da Conquista, Bairro Universidade, CEP 45031-900 Vitória da Conquista, Bahia, Brazil

ABSTRACT: We report on the population dynamics and reproductive traits of an ornamental crustacean, the spotted porcelain crab Porcellana sayana. Reproductive biology was examined between January 1998 and December 1999 at 3 different bays off Ubatuba, southeastern Brazil. The growth curves for males and females are described by the equations carapace width at age t (CWt) = 9.42 [1 - e-0.0085(t - 0.1972)] and CWt = 8.35 [1 - e-0.0097(t - 0.5411)], respectively. Males and females of P. sayana grew at similar rates and attained similar average and final body sizes. Longevity was estimated to be 1.48 yr in males and 1.3 yr in females. Reproduction was continuous but with dissimilar intensity during the study period. A reproductive peak during the warm austral spring and summer seasons was evident during 1999, but no obvious reproductive seasonality was detected during 1998. The estimated CW at first maturity in P. sayana, based on the 5 smallest ovigerous females captured during each season, varied between 4.72 mm (summer 1999) and 5.69 mm (winter 1999), with an average  of 4.98 mm (±0.37 SD). Recruitment intensity appears to be episodic and varied haphazardly in P. sayana. Sex ratio did not differ significantly from a 1:1 ratio during most of the seasons. The information generated in this study needs to be considered in assessing stocks and establishing sustainable management plans for P. sayana in the Caribbean, Gulf of Mexico, and western Atlantic.

KEY WORDS: Ornamental fishery · Aquarium trade · Aquaculture · Porcellanidae

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Cite this article as: Antonio Baeza J, Furlan M, Almeida AC, Barros-Alves SdP, Alves DFR, Fransozo V (2013) Population dynamics and reproductive traits of the ornamental crab Porcellana sayana: implications for fishery management and aquaculture. Sex Early Dev Aquat Org 1:1-12.

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