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Bioaccumulation of microplastic in intertidal gastropods from Southern Java, Indonesia: Abundance in relation feeding guild
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This study examined microplastic accumulation in intertidal gastropods from Southern Java and found that feeding behavior influenced how many microplastics the animals contained. Filter feeders and deposit feeders accumulated different quantities of MPs, confirming that feeding guild is a key determinant of microplastic bioaccumulation in marine invertebrates.
Microplastic pollution has become pervasive in marine ecosystems, with the potential to bioaccumulate in marine organisms, including intertidal gastropods. Feeding behaviour may significantly influence microplastic accumulation, as different feeding strategies determine exposure pathways to microplastic particles. This study characterized microplastics and determined their abundance in intertidal gastropods while analysing the relationship between feeding guilds and microplastic accumulation. Three gastropod species representing different feeding guilds were studied: herbivores (Nerita maxima), carnivores (Tylothais aculeata), and detritivores (Rhinoclavis sinensis). Samples were collected from Balekambang Beach, southern Java, during low tide periods. Microplastics were extracted through tissue digestion and filtration, then characterized morphologically and polymer composition was analyzed using ATR-FTIR. Results revealed microplastics in all specimens, dominated by fragments (94.51%), followed by fibres (4.68%), with predominant particle size of 20–40 µm (41.53%) and black coloration (64.80%). Polymer analysis identified polystyrene and nylon. Microplastic abundance exhibited a clear gradient across feeding guilds: highest in detritivores (148.21 particles/g), intermediate in carnivores (143.82 particles/g), and lowest in herbivores (56.19 particles/g). These findings demonstrate that feeding ecology significantly influences microplastic bioaccumulation patterns in intertidal gastropods, with sediment-feeding detritivores exhibiting highest vulnerability to microplastic contamination.
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Bioaccumulation of microplastic in intertidal gastropods from Southern Java, Indonesia: Abundance in relation feeding guild
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Researchers examined microplastic accumulation in three intertidal gastropod species with different feeding strategies in Southern Java, Indonesia, finding that feeding guild significantly influenced exposure levels and that herbivores, carnivores, and omnivores showed distinct microplastic accumulation patterns.
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Researchers compared microplastic ingestion across intertidal fish with different feeding strategies and found that feeding type influenced the amount of plastic found in stomachs. The study suggests that filter feeders and detritivores may ingest more microplastics than active predators, linking ecological role to plastic exposure risk.
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