Abstract
As habitat and distribution, in the study a total of 18 crab species were identified, belonging to 10 families (Calappidae, Epialtidae, Gecarcinidae, Grapsidae, Matutidae, Ocypodidae, Panopeidae, Sesarmidae, Varunidae, and Xanthidae) order Decapoda under subphylum crustacean with relevant distinguish morphological and meristic character and geographical position. We investigated crab species of Bangladesh from December 2013 to October 2014. All species samples were collected by hand picking on a baseline survey in Saint Martin’s Island (the only coral island of Bangladesh) and adjacent marine water body of Bay of Bengal, Satkhira area (brackish and freshwater) and mangrove forest area (Sundarban). Among 18 species, 10 crab species from Family Epialtidae (1 species), Gecarcinidae (2 species), Ocypodidae (1 species), Panopeidae (1 species), Sesarmidae (1 species) and Xanthidae (4 species) were newly occurred in the Bay of Bengal, Bangladesh. Cardisoma armatum and Zosymus aeneus species were larger than other enlisted species.
Highlights
Intertidal area is an important environment that is challenging for living organisms in Saint Martin Island
Last decades many researches from different parts of the world focused on taxonomic decapod crustaceans that have enriched crab list and biodiversity [6] [7] [8] but study on crab in marine water very limited research has been done in Bangladesh
As a result of distribution, nine crab species were recent newly added to the crab list of Bangladesh
Summary
Intertidal area is an important environment that is challenging for living organisms in Saint Martin Island. Last decades many researches from different parts of the world focused on taxonomic decapod crustaceans that have enriched crab list and biodiversity [6] [7] [8] but study on crab in marine water very limited research has been done in Bangladesh. This country is a data deficit area in marine crab taxonomic field which leads to limited contribution into the world crab taxonomic and distribution area. The aim of the present investigation is to increase the knowledge on the brachyura fauna family, wise species identification from mainly Bay of Bengal and freshwater of Saint Martin’s Island and mangrove forest area in Bangladesh
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