<![CDATA[Microplastics are increasingly reported in coastal biota, particularly filter-feeding bivalves that continuously process suspended particles. This study identified visually recognizable microplastic morphotypes and described their abundance in blood clams (Anadara granosa) collected from two anthropogenically influenced sites in the coastal waters of Raha City, Southeast Sulawesi. Thirty individuals were collected from the Lagasa Ferry Port area and thirty from the Laino Central Market area using purposive sampling. Soft tissues were digested with 10% KOH and, when required, 30% H₂O₂, followed by filtration and visual identification under a binocular microscope. Three morphotypes were recorded: fragments, fibers, and films. Fragments were dominant at both sites, representing 56% of particles in Lagasa and 59% in Laino. Morphotype abundances were 4.2, 1.9, and 1.4 particles individual⁻¹ for fragments, fibers, and films in Lagasa, respectively, and 7.4, 2.2, and 3.0 particles individual⁻¹ in Laino. All morphotypes were descriptively more abundant in Laino, consistent with stronger local inputs from market, port, fish-landing, and settlement activities. These findings provide baseline information on microplastic contamination in an economically important bivalve from Raha coastal waters.]]>
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