Biological aspects of spiny rock crab, Thalamita crenata in Kolono Bay, South Konawe, Southeast Sulawesi

  • Abdul Hamid Jurusan Manajemen Sumber Daya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Halu Oleo
  • Syamsul Kamri Jurusan Manajemen Sumber Daya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Halu Oleo
  • Atun Nurjannah Jurusan Manajemen Sumber Daya Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Halu Oleo
Keywords: fecundity, Kolono Bay, Portunidae, sexual maturity, Thalamita crenata

Abstract

The aim of this study was to determine  the relationship carapace width and body weight, condition factor, sex ratio, stage of gonad maturity, first sizesexual maturity, and fecundity in the  Kolono Bay. Crab samples were obtained using folding trap fishing gear. The resultas of this study were that distribution of carapace width and body  weight of male and ovigerou female T. crenata tended to be greater than that of females. While thecarapace width and body weight of female T. crenata tended to be smaller than body size of thecorrelation between carapace width and body weight of T. crenatashows a very shows a strong andpositive relationship with negative allometric growth patterns. . Male condition factors were significantlydifferent (p <0.05) from ovigerous females and females. Male and female condition factors weresignificantly different (p <0.05) indicating that the male was greater than the female. Overall sex ratiowas significantly different (p <0.05) from the 1: 1 ratio, except in the period July and August. Gonadmaturity stages based on sex and ovigerous females were found to vary during research but weredominated by the mature of gonads. The carapace width of the first sexual maturity  this  crab,  male and female,  were 55.39mm and 49.53 mm, respectively  with fecundity ranged from 32.741 to 257.798.

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Published
2024-02-12
How to Cite
HamidA., KamriS., & NurjannahA. (2024). Biological aspects of spiny rock crab, Thalamita crenata in Kolono Bay, South Konawe, Southeast Sulawesi. Habitus Aquatica, 5(1), 31–40. https://doi.org/10.29244/HAJ.5.1.31