CD Skripsi
Jenis Dan Kepadatan Kepiting Pada Ekosistem Mangrove Nagari Gasan Gadang Kabupaten Padang Pariaman Provinsi Sumatera Barat
Abstract
Mangrove area in the Nagari Gasan Gadang has been damage due to human
activities and the damage negatively affects crabs living in that area. A research
aims to understand species and density of crabs was conducted in December
2019-January 2020. There were 3 stations with 3 plots/station and 5 sub plots/plot.
Samplings were conducted 3 times at 2 week intervals. Crabs were caught by
hand. Results shown that there were 4 crab species present, namely Perisesarma
sp, Uca Perplexa, Uca dussumieri and Uca coarctata. The density of crabs
ranged from 13,998 to 20,662 organisms/ha and mangrove density ranged from
800 to 1,533 trees/ha. The environmental parameters were as follows: temperature
28-30 ℃, pH 7-8, and salinity 17-22 ‰, while the soil’s pH was 6-8. In the
substrate, organic material ranged from 24.5 to 51.6% and the type of substrate
was sandy mud.
Keyword: Sesarma, Perisesarma sp, Uca perplexa, Uca dussumieri
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