Biometrics and sexual proportion of Iphigenia brasiliana (Lamarck, 1818) (Bivalvia, Donacidae) of the bay Guarapua, Cairu, BA

Authors

  • Patrícia Petitinga Silva Doutoranda do curso de Ensino, Filosofia e História das Ciências, Universidade Federal da Bahia (UFBA), bolsista da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES).
  • Marlene Campos Peso Aguiar Professora titular do Departamento de Zoologia da Universidade Federal da Bahia (UFBA).
  • Joicelene Regina Lima da Paz Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana, Av. Universitária, s/n, Cidade Universitária, CEP. 44.031-460, Feira de Santana, BA, Brasil

DOI:

https://doi.org/10.32360/acmar.v49i2.6551

Keywords:

biometric behavior, bivalve molluscs, sex ratio.

Abstract

The estuarine regions of the Brazilian coast are characterized as areas of extraction of molluscs, especially bivalves, much appreciated in food. Iphigenia brasiliana is an edible bivalve only in some Brazilian states, although it has great commercial potential. In this study we described the temporal variations in biometry and sex ratio of I. brasiliana in Guarapuá Bay, in the south of Bahia, between October and December/2000 and March and May/2001. For the biometric study of the population, were collected 76 individuals evaluating the length of the shell, total weight, weight of the soft parts, shell weight, income and sex ratio. Biometric monthly changes related to the size and weight in the population may be associated with physiological events of biomass accumulation and stage of development of the gonads. Regarding the sex ratio, it was found a ratio of M:F 1:1.3. The study can subsidize conservation actions and propitiate the ordering of extractive practices for this species of bivalve in the region, promoting, thus, its potential for marketing and food.

Published

2017-05-05

Issue

Section

Artigos originais