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Determination of Microplastic Accumulation and its Effect on Rabbitfish (Siganus guttatus) and Parrotfish (Scarus ghobban): A Case Study from the Local Market of Zamboanga City, Philippines
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This study determined microplastic accumulation in rabbitfish and parrotfish from a Philippine fishing ground, finding MPs in both species and examining whether fish body size and weight correlate with the amount of ingested microplastics.
This chapter aimed to determine the abundance and characteristics of MPs ingested by the two fish and the link between the fish length and weight and MPs ingestion. In the last decade, interest in monitoring and managing plastic pollution has greatly increased. Several studies have been conducted that have demonstrated that MPs have a significant negative impact on public and environmental health. It has been a long-standing issue due to many MPs and must be addressed immediately. Due to their excellent site fidelity, Parrotfish and Rabbitfish are effective bioindicators of microplastic pollution in a specific region of concern. The samples (35 pieces each) of Rabbitfish Siganus guttatus and Parrotfish Scarus ghobban were randomly bought locally (Magay, Zamboanga City Public Market. The study confirmed MPs contamination in the fish samples sold in the local public market of Zamboanga City, Philippines. Rabbitfish Siganus guttatus has the most MPs in its guts. A regression study revealed a substantial inverse link between the weight and length of Rabbitfish and the Abundance of MPs but no such association for Parrotfish; the majority of MPs consumed by both species can be attributed to the location where they are taken. While red filaments are more prevalent in Parrotfish, blue filaments are more prevalent in Rabbitfish. The study's findings are concerning, and it is necessary to thoroughly evaluate MPs contamination in all fish species and other marine goods sold in Zamboanga City's market. Fish exposed to MPs directly come into contact with people and are dangerous to consume.
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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.
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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.
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Researchers sampled fish sold at four traditional markets in Palu City, Indonesia, and found microplastics in the digestive systems of two commonly eaten species: mackerel (Rastrelliger kanagurta) contained plastic flakes, while rabbitfish (Siganus canaliculatus) contained both flakes and fibers at higher concentrations. Because these fish are widely consumed locally, the findings raise direct concerns about human dietary exposure to microplastics through seafood.
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.
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.
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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.