Sea cucumber ecology Holothuroidea studies in the Sancang marine preserve

Abstract

This research aims to analyze the kelp, diversity, evenness, dominance, food characteristics, habitat and physical and chemical parameters of Holothuroidea in the Sancang marine preserve. The method used in this research is descriptive method with sampling method using purposive sampling, the method is assisted by using the help of lie transects, quadratic transect to help analyze the ecology of Holothuroidea. Based on field observations, Holothuroidea species exiting in the Cikabodasan Sancang beach there are found as many as 3 species including: Holothuria atra, Holothuria leucospilota and Holothuria scabra. The diversity index ranges from 0,9 to 0,13 which shows that diversity is in the low category, Evennes index ranges from 0,75-1,00 which shows that evenness of Holothuroidea is spread and the equity is in a stable condition, the dominance index ranges from 0,02 to 0,53 which shows that there are no dominant species. Food characteristics in the sea cucumber’s stomach are detritus, algae litter, and decapoda. The results of the analysis of the measurement of the physical and chemical parameters of the waters show that these values are still within the range of normal and stable conditions so that they support the life of sea cucumbers (Holothuroidea).