Microdebris in Echinodea Tripneustes gratilla at Spermonde Archipelago, South Sulawesi, Indonesia

Abstract Microdebris contamination of marine organism has become a major concern. As detritivore, Tripneustes gratilla also the opportunity to be contaminated. This study aims determine microdebris in T. , including form and size microdebris. research was conducted at three islands, i.e. Barrang Lompo, Badi, Kondong Bali. Ten individuals were collected from each island. The digestive tract spesies taken, then H2O2 added dissolve organic matter. Flotation carried out by adding NaCl. observed using stereo microscope, selected particle analysed FT-IR Microscope. abundance ranged 3.4 14.8 particles/individual. Badi Island showed highest levels, contained Fiber fragment found all samples. most common consisted more than half total island, except Lompo. 0.05-1mm, accounted for 36% Microscope identified as cotton. Our results suggest that pollution have contaminated Spermonde archipelago.