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Komposisi Jenis Kepiting Ocypodidae (Dekapoda: Brachyura) di Ekosistem Mangrove dan Estuari, TN Ujung Kulon Dewi Citra Murniati
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 2 (2010): June 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i2.2724

Abstract

Mangrove and estuary ecosystems are important components of the intertidal area which is the habitat of Ocypodid crabs. The study of Ocypodid crabs in Ujung Kulon National Park is still limited, while its habitat is decreasing. This study was conducted to explore the Ocypodid crabs (Brachyura: Ocypodidae) composition in mangrove and estuary ecosystems in Ujung Kulon National Park. Crabs species collection was carried out in Legon Cibariang, Panaitan Island and Cikawung, Ujung Kulon National Park. Four species of Ocypodid crabs, Ocypode ceratophthalma (Pallas, 1772), Uca annulipes (H. Milne Edwards, 1837), U. coarctata (H. Milne Edwards, 1852) and U. triangularis (A. Milne Edwards, 1873) were successfully collected from mangrove and estuary ecosystems. The species composition of Ocypodidae in Cikawung were more various than in Legon Cibariang.
Pola Dominansi Capit pada Uca spp. (Dekapoda:Ocypodidae) Dewi Citra Murniati
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 27, No 2 (2010)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2010.27.2.194

Abstract

Uca spp. are unique crab species marked with asymmetry cheliped. Major and minor cheliped has different function. The size of Major cheliped are several times of the minor ones (cheliped dominance pattern). Each species has different pattern of cheliped dominance. This study was to know the pattern of cheliped dominance on three Uca species. Major and minor cheliped length from twenty male individuals of U. dussumieri, U. vocans and U. perplexa were examined. The pattern of Cheliped dominance was obtained by comparing the major cheliped length to minor cheliped length. The two-tailed single sample t test showed similar cheliped dominance pattern within Uca species (P>0.001). While Kruskal-Wallis test showed different cheliped dominance pattern between Uca species (P>0.001). The cheliped dominance pattern of U. dussumieri, U. vocans and U. perplexa are 5.09, 4.24 and 4.75.