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Barnacle analysis as a microplastic pollution bioindicator on the East Coast of Surabaya

PeerJ 2024 5 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Miftakhul Sefti Raufanda, Aunurohim Aunurohim, Aunurohim Aunurohim, Romanus Edy Prabowo

Summary

A total of 196 microplastic particles were found in barnacles, water, and sediment on the east coast of Surabaya, with barnacles dominated by very small fragments in the 1-10 micron range. Amphibalanus amphitrite was identified as a potential bioindicator species for microplastic monitoring in coastal environments.

Study Type Environmental

A total of 196 microplastic particles were found in barnacles, water, and sediment. The size of microplastics in barnacles, water, and sediment varied, with the size in barnacles dominated by class 1 (1-10 µm), in water by class 2 (10-50 µm), and in sediments by class 3 (50-100 µm). Fragments dominated the shape of microplastics in barnacles, while water and sediment were dominated by fiber. The microplastic color in barnacles, water, and sediment was dominated by blue, and the microplastic polymer composition on barnacles, water, and sediments was dominated by cellophane (36%). Amphibalanus amphitrite was found to be predominant and identified as a potential microplastic bioindicator because it is a cosmopolitan species. Its population was found to correlate positively with cellophane (CP) accumulation. The Pearson's correlation test between barnacle length and microplastic length at a = 0.05 was inversely proportional to r = - 0.411 (p < 0.05), categorized as a strong enough correlation. These findings are essential in developing monitoring programs and mitigating the impact of microplastics on the marine environment.

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