Abstract
The presence of microplastic in the enviroment is a problem because they are persistent and they are consumed by organisms. Microplastic will affect aquatic life as a result various types of contamination in the aquatic enviroment can enter the body of green mussel. The ability to develop mussel is determined by the strength of the byssus. Utilization of green mussel byssus as biomarker to detect microplastic pollution is still a rare thing to do. The purpose of this study is to know the microplastic effect on the production off green mussel byssus. Green mussel with lengths of 4.1 - 5.0 cm were collected from Maccini Baji Water, Labakkang District, Pangkep Regency. The experimental desigh used is a Completely Randomized Design exposure was carried out for 7 days with microplastics concentration namely 0, 0.05, 0.5 and 5 g/L using polyethylene microplastics usually used as a raw material for scrub bath. The results of study show that production of green mussel byssus exposed at all concentration on day 1-6 were not significantly different at all concentration, but 7 days there significantly different 0 g/L treatment 0 g/L from 5 g/L. This mean that the green mussel byssus can be used as a microplastic pollution biomarker with a testing duration of 7 days
Highlights
The presence of microplastic in the enviroment is a problem because they are persistent and they are consumed by organisms
Microplastic will affect aquatic life as a result various types of contamination in the aquatic enviroment can enter the body of green mussel
The purpose of this study is to know the microplastic effect on the production off green mussel byssus
Summary
Pengambilan Sampel Pengambilan sampel dilaksanakan pada bulan Oktober – September 2019 di perairan Maccini Baji, Kecamatan Labakkang, Kabupaten Pangkajene Kepulauan (Pangkep) dengan ukuran panjang cangkang 4,1 – 5,0 cm. Alat dan bahan yang digunakan antara lain coolbox, aerator, wadah plastik, botol plastik transparan, lup, jangka sorong, timbangan digital, kamera, kertas, pulpen, kerang hijau, mikroplastik jenis poliethylene, air laut, alga Spirulina sp, aquades. Paparan Mikroplastik Desain percobaan terdiri dari 4 taraf perlakuan dan 3 kali pengulangan (Gambar 2). Setiap wadah plastik dimasukkan 5 botol plastik yang berisi sampel kerang dengan jumlah air laut masing-masing adalah 5 liter air laut. Taraf konsentrasi mikroplastik yang digunakan adalah 0 g/L, 0,05 g/L, 0,5 g/L dan 5 g/L (Santana et al 2017). Botol plastik yang berisi kerang dikeluarkan lalu wadah plastik diberisihkan dari mikroplastik maupun Alga Spirullina sp. Hal ini digunakan untuk memastikan bahwa mikroplastik yang telah dikeluarkan oleh kerang tidak tertelan kembali (Van Cauwenberghe dan Janssen, 2014). Sebelum itu dilakukan uji normalitas dan homogenitas untuk melihat distribusi data (normal atau tidak normal) dan variant, tetapi apabila data tidak normal akan dilakukan uji transformasi dan apabila data tidak berdistribusi normal akan dilakukan uji non parametrik yaitu uji Kruskal Wallis untuk melihat perbedaan pertumbuhan bisus pada konsentrasi yang berbeda
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