PERTUMBUHAN DAN PENDUGAAN UKURAN PERTAMA KALI MATANG GONAD KEPITING KELAPA (Birgus latro) DI PULAU UTA PROPINSI MALUKU UTARA
ABSTRACT: Coconut crab (B.
latro) is one of crustacea species which has high economic value, but it is
considered rare and classified 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 local people consumption and its habitat quality degradation.
Regarding importance of the species resources, thus undestanding its biology
and ecology aspects can be applied as the proper stock management and effort of
preservation. The purpose of this study was to assess the growth and estimating
the size of coconut crab at the first gonads mature. The study was held in Uta
Island from May to September 2013, sampling crab survey conducted by cruising.
The parameters that were examined to understrand the growth of these animal
were gonadal morphology and maturity level to estimate the size of the first
mature gonads. The observation showed that 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 mostly found on female which catched on September in West
Station (25%) of catched individu. TKG IV (100%) both male and female where
mostly found on July. . The result analysis showed that the relation of Length
– Weight of 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 has allometric growth
characteristics. Based on the analysis, the size of the smallest female crabs
in this gonads mature were found in length (CP+r) 65,44 mm and 93,71 mm for the
male crabs.
Penulis: Uta Island, North
Mollucas Province Supyan, Sulistiono, dan Aras Syazili
Kode Jurnal: jpperikanandd150190
