Paper Title
Microplastics Analysis Which Accumulated in Bivalves Caused by Marine Debris in Tambak Lorok Semarang Indonesia

Plastics are a major component of waste in the ocean. The amount is nearly 95% of the total waste collected along the coastline, surface and seabed. In general, the process of plastic decomposition takes place very slowly1). Microplastic is a small plastic (≤ 5 mm) that is difficult to decompose, thus making this material will remain in the long term. Microplastic in aquatic ecosystems produce wider and more harmful effects on living things2) 3). This research used shellfish because it’s filter feeder and often consumed by humans. The purpose of this research is to know the abundance of microplastic at Pernaviridis, Anadaragranosa and Amusumpleuronectes, the organ in every shellfish that contain the most microplastic, and the effect of boiling of shellfish with high temperature to microplastic abundance. Methods of microplastic abundance analysis were done by isolating the microplastic on each boiled shell sample and not by dissolving the shell in a 65% HNO3 solution, diluted and then observed by a microscope. The result shows that the average microplastic abundance in shells Anadaragranosa, Amusumpleuronectes and Pernaviridisie 11.89; 3.44; and 14, 64 particles/gram. The microplastic content of the fiber group is the most dominant in the three types of shellfish. Most microplastic content found in gastrointestinal organs of the Pernaviridis is 44 particles. There is no difference in the microplastic abundance of shellfish that has been boiled or not. Keywords - Amusiumpleuronectes, Anadaragranosa, Microplastic, Perna viridis.