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Occurrence and Visual Characteristics of Suspected Microplastics in the Gastrointestinal Tract of Wild Rabbitfish (Siganus guttatus) from Tamisan, Pujada Bay, Philippines
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Scientists found tiny plastic fibers, mostly blue, in the guts of about 1 in 4 wild rabbitfish caught in a Philippine bay — a popular fish for local diets. While this study didn't test whether these fibers make it into the parts of the fish people actually eat, it's a reminder that plastic pollution is working its way into seafood, adding to the case for reducing plastic waste that ends up in our oceans.
Microplastic pollution threatens coastal ecosystems through ingestion by marine organisms. This study assessed the occurrence and characteristics of suspected microplastics in the gastrointestinal tract of wild rabbitfish (Siganus guttatus) from Tamisan, Pujada Bay. Sixty samples were collected and analyzed using KOH digestion, filtration, and stereomicroscopy. Microplastics were identified based on morphology and color over the sampling period, without FTIR confirmation due to size limitations. Results showed 26.7% occurrence (16/60), with a mean of 0.27 ± 0.45 particles per fish. Fibers dominated (87.5%), with blue as the most frequent color. These findings indicate exposure of wild rabbitfish to microplastics and highlight the need for continued monitoring and polymer confirmation.
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Microplastic Occurrence in the Gastrointestinal Tract of Rabbitfish (Siganus canaliculatus) in Pujada Bay, Philippines
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Researchers evaluated microplastic ingestion in rabbitfish (Siganus canaliculatus) from Pujada Bay, Philippines, finding MPs in the gastrointestinal tracts of 27.5% of 80 individuals with FTIR spectroscopy confirming the polymer types present. The study documents MP contamination in a commercially important reef fish species, raising concerns about trophic transfer and seafood safety in Philippine coastal waters.
Microplastics in marine sediments and rabbitfish (Siganus fuscescens) from selected coastal areas of Negros Oriental, Philippines
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Researchers conducted the first study of microplastics in an edible finfish in the Philippines, examining rabbitfish (Siganus fuscescens) from coastal areas of Negros Oriental and finding the highest polymer diversity in fish from the densely populated city of Dumaguete. Sediment samples were dominated by rayon microfibers from textiles, while fish guts contained different polymer types reflecting the distinct feeding habitats of this species.
Microplastics in some fish species and their environs in Eastern Visayas, Philippines
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Researchers investigated microplastic ingestion in freshwater and marine fish species in the Philippines, finding that herbivorous rabbitfish ingested more MPs than detritivore mullet, and that MP concentrations in fish guts did not strongly correlate with surrounding water concentrations.
Microplastic Abundance and Characteristics in Rabbitfish Siganus guttatus and Parrotfish Scarus ghobban from the Local Market of Zamboanga City, Philippines
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This Philippine study found microplastics in the digestive tracts of rabbitfish and parrotfish sold in public markets in Zamboanga City. Both reef fish species showed microplastic contamination, highlighting food safety concerns for consumers who regularly eat these locally caught fish.
Microplastic Analysis in Digestive Tracts of Baronang and Goatfish in Kuta Lombok
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Scientists checked rabbitfish and goatfish caught near a popular tourist beach in Lombok, Indonesia, and found tiny plastic bits (mostly plastic fibers, likely from clothing and fishing gear) in their digestive systems. The amounts were small—less than one particle per fish on average—but since these are fish people eat, it's a reminder that plastic pollution from tourism and daily life can work its way into our seafood. The researchers say better trash management and more public awareness could help keep this problem from getting worse.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.