Andriyani, Retno. 2017. The Study of Abundance Crab (Scylla sp.) In Mangrove Teluk Bogam Cove Kumai Subdistrict West Kotawaringin Regency.(Thesis). Palangka Raya: Publicated on IAIN Palangka Raya’s Thesis. Advisor I : Hj. Nurul Septiana, M.Pd., Advisor II : Usmiyatun, M.Pd.

ABSTRACK

Indonesia has a very broad waters, one of them is Mangrove Teluk Bogam Cove in Kumai subdistrict west Kotawaringin, This region has one of the potential natural resources are abundant. Based on interview result with one of the fishermen researchers stated that there are several kinds of crabs in the Mangrove Teluk Bogam. This study aimed to determine the species of crabs that were found in the Mangrove Teluk Bogam Cove Kumai subdistrict West Kotawaringin Regency, and knowing the abundance of crabs that were found in the Mangrove Teluk Bogam Cove Kumai subdistrict West Kotawaringin Regency, and knowing the dominant crabs that were found in the Mangrove Teluk Bogam Cove Kumai subdistrict West Kotawaringin.

This research used quantitative descriptive eksporatif method, data collection used sampling methods and counting the number of crabs were found. Zoning techniques in this study used purposive sampling technique. The result data then analyzed using the formula Abundance Index. The tools used to catch crabs were traps.

The research result found four species is Scylla olivacea, Parathelphusa convexa, Uca forcipata, and Perisesarma darwinesis. From the analysis obtained using the formula IKR Scylla olivacea species on the station I was 24,31%, while at the station II 25,68%. Convexa parathelphusa species on the station I was 21,56%, while at the station II 9,17%. Uca forcipata species the station I was 9,17%, while at the station II 6,42%. While Perisesarma darwinesis species the station I was 2,29%, while at the station II 1,37%. This study found most is the abundance of crab species Scylla olivacea, and at least on species Perisesarma darwinesis.

Keywords       : Mangrove, Teluk Bogam Kotawaringin West, crab (Scylla Sp.), the abundance.

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