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Asphama, Andi Ivo
Hasanuddin University
Earth & Planetary Sciences

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The Morphometric Character and Mitochondrial 16S rRNA Sequence of Portunus pelagicus Fujaya, Yushinta; Hidayani, Andi Aliah; Asphama, Andi Ivo; Trijuno, Dody Dharmawan; Tenriulo, Andi; Parenrengi, Andi
Aquacultura Indonesiana Vol 16, No 1 (2015): Volume 16 Issue 1 Year 2015
Publisher : Indonesian Aquaculture Society (MAI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.576 KB) | DOI: 10.21534/ai.v16i1.1

Abstract

Blue swimming crab (Portunus pelagicus) colors have variations from different habitats and they have different vitality. The purpose of this study was to analyze the diversity of the P. pelagicus using morphometric and 16SrRNA mitochondrial sequence.  There were three groups of blue swimming crab characterized by differences in color and density patterns of spots.  The result of Canonical discriminant analysis showed that there were morphometric differences among the three groups.  The main distinguishing morphometric characteristics are the ratio of carapace width and length as well as the ratio of the length and width of cheliped merus.  The third group of crab is also has similarity about 98-99% by the Portunus pelagicus 16S rRNA sequences available in gene banks.  These studies had concluded that differences in color and pattern of the spot density have also morphometric and genetic differences. At least there were two groups based on genetic variation of Portunus pelagicus from Barru Regency waters which may have a variety of different properties.  Further research is needed to study the adaptation abilities of the two groups of crab on the condition of aquaculture as a potential domestic animal.Keywords: Crab; Portunus pelagicus; Morphometric; 16S rRNA.
Habitat Preferences of Blue Swimming Crab (Portunus pelagicus) Species Complex Asphama, Andi Ivo; Amir, Faisal; Malina, Asmi Citra; Fujaya, Yushinta
Aquacultura Indonesiana Vol 16, No 1 (2015): Volume 16 Issue 1 Year 2015
Publisher : Indonesian Aquaculture Society (MAI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (218.69 KB) | DOI: 10.21534/ai.v16i1.10

Abstract

Blue swimming crabs (Portunus pelagicus) from Makassar Strait have some variations in color and pattern of spots on the carapace. The purpose of this study was to analyze the habitat preferences blue swimmer crab species complex from Macassart Straits.  Crabs were grouping based on the difference of color and pattern of spots on the crab carapace to identify the variety of crabs.  Habitat was observed salinity, depth, and substrate type. The results of PCA analysis showed a tendency of each population occupies a different base substrates (P<0.01). Substrate type also correlated with depth and salinity. The conclusion of this study is the difference in the color and pattern on the carapace thought to be different species or varieties and they occupy different habitats.  Preferences of the different habitats for different population groups are very important information for the development of blue swimming crab aquaculture in the future. Keywords: Crab, Portunus pelagicus, morphometric, habitat, aquaculture
Co-Authors Andi Aliah Hidayani Andi Parenrengi Andi Tenriulo Asmi Citra Malina Dody Dharmawan Trijuno, Dody Dharmawan Faisal Amir Yushinta Fujaya