PERTUMBUHAN DAN PENDUGAAN UKURAN PERTAMA KALI MATANG GONAD KEPITING KELAPA (Birgus latro) DI PULAU UTA PROPINSI MALUKU UTARA
| Main Author: | Supyan, Supyan |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
TORANI : Jurnal Ilmu Kelautan dan Perikanan
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| Online Access: |
http://journal.unhas.ac.id/index.php/torani/article/view/270 http://journal.unhas.ac.id/index.php/torani/article/view/270/161 |
Daftar Isi:
- Coconut crab (B. latro) is one of crustacea species which has high economic value, but it is considered rare andclassified into vulnerable category by the International Union for Conservation of Nature (IUCN). In Indonesia,the status of this animal population has been not exactly identified, but it has tended to decline because of localpeople consumption and its habitat quality degradation. Regarding importance of the species resources, thusundestanding its biology and ecology aspects can be applied as the proper stock management and effort ofpreservation. The purpose of this study was to assess the growth and estimating the size of coconut crab at thefirst gonads mature. The study was held in Uta Island from May to September 2013, sampling crab surveyconducted by cruising. The parameters that were examined to understrand the growth of these animal weregonadal morphology and maturity level to estimate the size of the first mature gonads. The observation showedthat the male did not found in TKG I condition but the female can be found on May (30%) and September (25%)of catch. TKG II was mostly found on male which catched on May in South Station (65%), TKG III was mostlyfound on female which catched on September in West Station (25%) of catched individu. TKG IV (100%) bothmale and female where mostly found on July. . The result analysis showed that the relation of Length – Weightof male crab is W = 1,93 (CP + r)1,17, while the female is W = 1,97 (CP + r)0,97. Each of those sexual species hasallometric growth characteristics. Based on the analysis, the size of the smallest female crabs in this gonadsmature were found in length (CP+r) 65,44 mm and 93,71 mm for the male crabs. Keywords : Birgus latro, growth, gonadal maturation, Uta island