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Burrower shrimp is an important infaunal group on seagrass ecosystem due to their role in sediment aeration, water exchange, mixing the sediment and improving sedimentnutrient. In Spermonde Archipelago, seagrass bed are abundant and covering every island reef flat. However, information about burrower shrimp remains less known. Based on this, research about community analysis of burrower shrimp has been conducted in Bonebatang, an uninhabitant island close to Barranglompo Island, South Sulawesi. The aim of this research was to investigate species composition and diversity of burrower shrimp. Samples were collected using plastic tarp method in eight stations. In one station, a sheet of plastic tarp was set up on seagrass bed and another one was set up on bare sand without seagrass as a control. Station 1 to 4 were set up on intertidal zone, station 5 to 7 were set up on subtidal zone, while station 8 was set up on coral reef zone. There were 22 species of burrower shrimp collected from all stations. The highest density of burrower shrimp was Alpheus macellarius which was 2,82 individu/m2. The diversity of burrower shrimp tend to be higher in control plastic tarp which was 0,33 to 3.18 compared to 0,39 to 0,96 in seagrass bed. Eveness index of uniformness were also showed higher value in control which was 0,49 to 2,33 compared to 0,24 to 0,75 in seagrass bed. Whilst Simpson dominance index showed higher value in control of 0,17 to 0,66 compared to 0,26 to 0,60 in seagrass bed. It can be concluded that species composition and diversity of burrower shrimp on different type of habitat depend on their life modes. |
