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Assessment and characterization of microplastic contamination in milkfish (Chanos chanos) from marine aquaculture systems in the Philippines
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Researchers tested milkfish (a popular food fish) from fish farms in the Philippines and found tiny plastic particles, called microplastics, in their digestive systems—with some farm locations showing much higher contamination than others. Since these particles come from common plastic products like packaging and synthetic fabrics, this raises concerns about plastic exposure for people who eat farmed fish, though more research is needed to understand the actual health risks. The findings highlight the need for better pollution control in fish farming areas.
This paper investigated the microplastic contamination in milkfish harvested from nine mariculture sites in the Philippines. The digestion of microplastics in the gastrointestinal tract (GIT) was carried out using potassium hydroxide (KOH). Optical microscopy (OM) and Fourier transform infrared (FTIR) spectroscopy were utilized to identify and classify the suspected microplastics in the milkfish samples. Results revealed that five types of polymers were identified, namely polyethylene (PE), polypropylene (PP), polyamide (PA), polyethylene and cellulose-based polymers. Sampling site 2 obtained the highest average microplastic concentration of 14.77 + 0.0 particles/fish. This study offers a meaningful contribution to understanding microplastic contamination on tropical aquaculture species and highlights the urgency of implementing effective management strategies to address this escalating environmental concern.
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Microplastic ingestion by adult milkfish Chanos chanos (Forsskål, 1775) in aquaculture system: The case of Butuan Bay, Philippines
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Researchers examined farmed milkfish from aquaculture cages in Butuan Bay, Philippines, and found microplastics in 97% of the fish sampled. The dominant particle types were fibers and fragments, with colors and polymer types matching common plastic packaging and fishing materials. The study raises concerns about microplastic contamination entering the human food supply through aquaculture in coastal areas with high plastic pollution.
Microplastics detection in milkfish (Chanos chanos) from selected aquaculture farm in the Philippines
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Researchers developed a method to detect tiny plastic particles in milkfish, improving removal of biological material that can hide them. Testing fish from a farm in the Philippines, they found several plastic types, including cellulose, PE, PP, PA and PET, with the most pieces found in the head and fat tissue.
Occurrence of microplastic particles in Milkfish (Chanos chanos) from brackishwater ponds in Bonto Manai Village, Pangkep Regency, South Sulawesi, Indonesia
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Microplastic particles were detected in milkfish (Chanos chanos) from brackishwater ponds in South Sulawesi, Indonesia, raising food safety concerns for this commercially important species farmed near coastal settlements.
Analysis of microplastic content in milkfish (Chanos chanos) in the Domas Village aquaculture pond, Pontang District, Serang Regency, Banten Province
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Researchers analyzed the abundance, characteristics, and polymer types of microplastics in milkfish (Chanos chanos) from aquaculture ponds in Domas Village, Banten Province, Indonesia, using purposive sampling and descriptive analysis. The study aimed to document microplastic contamination in farmed milkfish as a contribution to understanding polymer pollution in Indonesian aquaculture systems.
Identification of Microplastics Content in Sediment, Water and Digestive Channel of Milkfish (Chanos chanos) in Sidoarjo Pond
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Researchers quantified microplastics in sediment, water, and the digestive tracts of milkfish (Chanos chanos) from semi-intensive and traditional ponds in Sidoarjo, Indonesia. Microplastic abundance was higher in traditional pond sediments (613 particles per 50 g versus 300 in semi-intensive ponds), and fish from traditional ponds contained more particles (9.5 per individual versus 6), with polyamide being the dominant polymer type.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.