Fisheries and Society
Volume 1 Issue 1, February 2021

Species composition, density, gonad maturity stage and size of sea urchin at Wakatobi Archipelago, Southeast Sulawesi, Indonesia

Nurqadri Syaia Bakti (Universitas Muhammadiyah Gorontalo)
La Nane (Universitas Negeri Gorontalo)

Article Info

Publish Date
21 Apr 2021


Sea urchin is echinoderm that body surface is covered with the spines. Sea urchin gonad has been consumed along time by the people at Wakatobi Archipelago. Sea urhin species is worried will be degraded. On the other hand, there is no study on species composition, density, size and maturity stage of sea urchins on Tolandono Island and Sawa Island, Wakatobi Regency. The purpose of this study was to determine the species composition, abundance, size and maturity level of sea urchin gonads. Sea urchin density was calculated with a 10 × 10 m transect quadrate. The data was analyzed by descriptive qualitatively. The results showed that in Tolandono Island and Sawa Island there were 4 types of sea urchins, namely Tripneustes gratila, Echinotrix calamaris, Diadema setosum and Echinoemetra sp. The size of urchin Tripneustes gratilla is ranging between 2.5 cm and 8.5 cm with the density 2 Ind./100 m2. Meanwhile, the gonad maturation stage (TKG) of Tripneustes gratila is at a 4.8 cm and spawned at a size 8–8.5 cm. TKG I is in the size range of 4.8–5 cm, TKG II is at 5.9–6.2 cm, TKG III is 6.4–6.6 cm, TKG IV is 6.8–7.5 cm and TKG IV is 6.8–7.5 cm. V in size 8.5 cm.

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Journal Info





Agriculture, Biological Sciences & Forestry


Fisheries and Society is a journal of research and community empowerment which publishes a peer-reviewed article of the original papers, short communications, and reviews relating to fisheries science and community empowerment. Fisheries and Society accepted the articles with the topic on aquatic ...