ABSTRACT
This research was conducted to determine the species of sea cucumber and some aspects of ecology and water quality of the substrate, total organic matter, and habitat distribution patterns of sea cucumber in Sikakap strait waters. The method used in this research was survey method, by spreading the transect out as long as 50 meters with a width of 20 meters parallel shoreline. The result was obtained 4 genera which are included in one family. The highest Diversity of Index Value (H’) was found at Station 2 about 1.012, Station 3 about 0,004 and the lowest is found at Station 1 about 0. The highest Equitability of Index Value (E) was found at Station 2 about 0.271, Station 3 about 0.063 and the lowest was found at Station 1 about 0. The pattern of spread of species at Station 1 was included in the pattern of spread of the group about 1.037, Station 3 and 2 were included in the distribution pattern of uniform. Habitats of sea cucumbers in the waters of Sikakap Strait was included in the category of sand (Station 1), rocky sand (Station 2), and muddy sand (Station 3) the total organic matter (TOM) each station about 16.10 %, 14.71%, and 20,48%. The differences in each Station are caused by the differences in habitat and food sources in the waters. Parameter as temperature, salinity, pH and Dissolved Oksigen at Sikakap Strait waters linked to the quality standard of Ministry of Environment Decree No.51/2004 for marine water quality was still quite good for the existence of sea cucumbers.
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