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Analisis Pencemaran Mikroplastik dalam Ikan Tongkol (Euthynnus affinis) di Perairan Semenanjung Malaysia
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Researchers analyzed microplastic contamination in the skin, gills, and gastrointestinal tracts of 69 Eastern little tuna (Euthynnus affinis) from four Malaysian fishing sites, finding the highest concentrations in skin (1.52 particles/g), with fibers (90%) and black-colored particles (62%) predominating, and a positive correlation between fish size and microplastic load.
Pencemaran mikroplastik dalam persekitaran marin telah mencapai tahap yang semakin membimbangkan di seluruh dunia. Kajian mengenai pencemaran mikroplastik pada organisma marin masih kurang di Malaysia, terutama bagi spesies yang turut menjadi makanan laut dan sajian utama di Malaysia, contohnya ikan tongkol (Euthynnus affinis). Sebanyak 207 organ telah diekstrak keluar daripada 69 ekor ikan tongkol dengan tiga organ diambil daripada setiap ikan (iaitu saluran gastrousus, insang dan kulit) yang telah disampel dari empat kawasan pendaratan ikan utama di Malaysia, iaitu Kuala Terengganu, Terengganu; Kuantan, Pahang; Mersing, Johor; dan Kuala Selangor, Selangor. Hasil kajian menunjukkan kulit ikan tongkol mempunyai kandungan mikroplastik tertinggi (1.52 ± 0.91 mikroplastik per gram) berbanding organ insang dan saluran gastrousus. Jenis mikroplastik yang paling dominan dijumpai adalah berbentuk serat (89.95%), diikuti dengan serpihan (10.05%). Warna mikroplastik paling banyak dikenal pasti ialah hitam(61.58%) dan biru (21.39%). Julat saiz 0.01-1.00 mm merupakan saiz mikroplastik yang paling banyak dijumpai. Kelimpahan mikroplastik berkorelasi positif dengan saiz badan ikan menunjukkan kandungan mikroplastik pada ikan tongkol semakin bertambah seiring dengan pertambahan umur dan saiz badan ikan. Data kajian ini menemukan mikroplastik pada kesemua organ ikan tongkol yang dikaji, maka adalah disarankan agar kulit luaran ikan perlu dibersihkan dan organ dalaman seperti insang dan saluran gastrousus perlu disiang terlebih dahulu sebelum digunakan dalam sebarang penyediaan hidangan makanan bagi mengurangkan risiko kemasukan mikroplastik terhadap manusia melalui pemakanan ikan tongkol ini.
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Isolation and Analysis of Microplastics in Ikan Tongkol Euthynnus affinis Cantor, 1849 at Tanjung Luar Fish Landing Base, East Lombok
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Researchers isolated and analyzed microplastics in Ikan Tongkol (Euthynnus affinis) collected at Tanjung Luar Fish Landing Base in East Lombok, Indonesia, characterizing the abundance and properties of microplastics in fish tissue to assess food safety implications.
IDENTIFIKASI MIKROPLASTIK PADA IKAN BANDENG (Chanos chanos) DAN IKAN TONGKOL (Euthynnus affinis) DI PASAR TRADISIONAL KRANGGOT, CILEGON-BANTEN
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Researchers analyzed microplastic abundance, morphology, color, and polymer composition in milkfish (Chanos chanos) and mackerel tuna (Euthynnus affinis) from a traditional market in Cilegon, Indonesia, finding 149.4 and 178 particles per individual respectively, with Nylon and Ethylene Vinyl Acetate polymers present in both species and noting that continuous accumulation may disrupt fish metabolism and pose human health risks through dietary consumption.
MIKROPLASTIK PADA INSANG DAN SALURAN PENCERNAAN DIIKAN TONGKOL Euthynnus affinis (Cantor, 1849) DAN IKAN TERIStolephorus indicus (van Hasselt, 1823) HASIL TANGKAPANNELAYAN PPP LEMPASING
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Researchers examined microplastics in the gills and digestive tracts of two commercially important fish species — bullet tuna (Euthynnus affinis) and Indian anchovy (Stolephorus indicus) — caught by fishers at PPP Lempasing, Indonesia. The study documented microplastic contamination in both fish organs, with findings reflecting the contribution of Indonesia's significant marine plastic waste load to microplastic ingestion in coastal fisheries.
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