Abstract
Microplastics are plastic particles in the size of <5 mm. Bioaccumulation of microplastics in the marine biotas, including fishes, occurs through the food chain. Microplastics enter the fish body through their gills and mouth. Contamination of microplastics inside the fish body can cause several effects, such as increasing toxicity effect, and growth inhibition. This research analyzed the form and amount of the microplastics found in each gill and gastrointestinal tract of the fish samples. A total of 15 samples of cantang grouper were taken from the floating net cage near Kampung Peres, Pulau Panjang. Samples were transported to the laboratory using an icebox. The gill and gastrointestinal tract of samples are isolated from their body, then destructed with HNO3 65% for 24 hours. After 24 hours, the samples were mixed with the concentrated NaCl solution with a ratio of 1:4. Microplastics form and amount are observed under the light microscope with three times repetition. The results show that the microplastics found in the gill and gastrointestinal tract of cantang groupers are mostly found in the form of fragments. The microplastics abundance in gills was 51893,33 ± 2594,67 particles/individual, and in the gastrointestinal tracts was 83926,67 ± 4196,33 particles/individual.
Highlights
Marine plastic debris came from the land entering the ocean by any deliberate or accidental actions [1]
This study aimed to provide information about the amount and shapes of microplastics found inside the gills and gastrointestinal tract of cantang grouper that is collected from Pulau Panjang, Serang, Banten
Overall results from the observation that has been done on this research showed that microplastics abundance in Epinephelus fuscoguttatus-lanceolatus that was collected from the floating net cage in Pulau Panjang, Serang, Banten was 3459.56 ± 1208.51 particles/individuals and 5595.11 ± 2078.71 particles/individuals
Summary
Marine plastic debris came from the land entering the ocean by any deliberate or accidental actions [1]. Based on Geyer et al [23], out of 192 reviewed countries, five states from the East Asia Region are responsible for more than half of plastic waste in the ocean. There are 187.2 million tons of plastic waste that came from Indonesia that ends up in the ocean [24]. Microplastics are fragmented plastic that is smaller than 5 mm in size [2, 3]. Microplastics that came from the degradation of plastic waste can contribute to a wide range of impacts to many marine biotas, such as feeding disruption, reproductive impairment, metabolism change, and interaction with the other contaminants [33]
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