Abstract

Despite the importance of the mud crab species (genus Scylla) both in the development of crab culture in brackish waters, knowledge of mud crab species diversity for sustainable management throughout the coastal areas of North Kalimantan Province is still unclear. Therefore, this study was conducted to describe. The diversity of mud crabs in these waters is based on observations of crab morphology collected from five small islands in the coastal area of North Kalimantan. This study aims to identify the mud crab (Scylla spp.) species that live in the waters of North Kalimantan. It is hoped that this research can provide basic information about the types of mangrove crabs (Scylla spp.) that exist and live in the waters of North Kalimantan so that they can be used as a reference in the development and conservation of mud crab resources in North Kalimantan. This study uses a descriptive method to describe and describe the existing conditions in the field. Sampling was taken at random with different weights of 5 crabs/location at each high tide and carried out 2 times in every month. Sampling locations were carried out on several islands with many traditional ponds around the waters of North Kalimantan. The results of the study from 100 samples of mud crabs showed that the types of mangrove crabs found in the waters of North Kalimantan were two species, namely Scylla serrata and Scylla tranquebarica.

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