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Pengaruh Jumlah Mikroplastik Terhadap Berat Ikan Pari yang Didaratkan di TPI Klandasan Balikpapan
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Researchers investigated the type, color, size, and abundance of microplastics in stingrays landed at TPI Klandasan in Balikpapan, Indonesia, and used linear regression analysis to assess the relationship between fish size and microplastic load. The study found that microplastic abundance in stingrays was detectable and analyzed whether larger fish accumulated more microplastics, contributing to understanding of microplastic exposure in commercially caught elasmobranch species.
Microplastic is one of the plastic pollutants > 5mm in size that has an impact on life around the world, including marine organisms such as fish. This study aims to determine the type, colour, size and abundance. Linear regression analysis was used to determine the relationship between fish size and microplastic abundance in the digestion of stingrays landed at Klandasan Fish Landing Site Balikpapan. A total of 14 stingrays were collected in January 2024 from fishermen in Balikpapan coastal waters. Morphometric analysis of fish by measuring length (cm), width (cm) and weight (kg). Microplastics were extracted from fish digestion through dry deconstruction, followed by the addition of saturated NaCL, KOH 22% H2O2 30%, then filtered using Whatman paper with a vacuum pump. Three types of microplastics were found in stingray digestion with the percentage composition of fibre (54%), fragments (38%), and film (8%). The highest abundance of microplastics in samples with a length of 38 cm, a width of 43 cm and a weight of 2.1 kg was 8.8 particles/gr. The colours of microplastics found were 7 colours, namely black, brown, red, blue, green, yellow, and transparent. Regression test results There is a strong correlation between the length and weight of stingrays and the abundance of microplastics Mikroplastik merupakan salah satu polutan plastik yang berukuran > 5mm yang berdampak pada kehidupan seluruh dunia, termasuk organisme laut seperti ikan. Penelitian ini bertujuan untuk mengetahui tipe, warna, ukuran dan kelimpahan. Analisis regresi linier untuk mengetahui hubungan ukuran ikan dengan kelimpahan mikroplastik pada pencernaan ikan pari yang didaratkan di Tempat Pendaratan Ikan Klandasan Balikpapan. Total 14 ekor ikan pari yang dikumpulkan pada bulan Januari 2024 dari nelayan di perairan pesisir Balikpapan. Analisis morfometrik ikan dengan pengukuran Panjang (cm), Lebar (cm) dan berat (kg). Mikroplastik diekstraksi dari pencernaan ikan melalui destruksi kering, diikuti dengan penambahan NaCL jenuh, KOH 22% H2O2 30%, kemudian disaring menggunakan kertas Whatman dengan vacum pump. Tiga tipe mikroplastik ditemukan pada pencernaan ikan pari dengan komposisi persentase fiber ( 54%), fragmen (38%), dan film (8%). Kelimpahan mikroplastik tertinggi pada sampel dengan panjang 38 cm, lebar 43 cm dan berat 2,1 kg sebesar 8,8 partikel/gr. Warna mikroplastik yang di temukan sebanyak 7 warna yaitu hitam, coklat, merah, biru, hijau, kuning, dan transparan. Hasil uji regresi Terdapat korelasi yang kuat antara panjang dan berat ikan pari terhadap kelimpahan mikroplastik.
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