Anthropogenic fibres in white clams, Meretrix lyrata, cultivated downstream a developing megacity, Ho Chi Minh City, Viet Nam

• Published in: Marine pollution bulletin 2022-01, Vol.174, p.113302-113302, Article 113302
• Main Authors: Kieu-Le, Thuy-Chung, Tran, Quoc-Viet, Truong, Tran-Nguyen-Sang, Strady, Emilie
• Format: Article
• Language: English
• Subjects: Accumulation; Animals; Anthropogenic factors; Biodiversity and Ecology; Biota; Bivalve; Bivalvia; Can Gio mangrove; Cities; Clams; Contamination; Environmental Sciences; Fibers; Gills; Humans; Industrial textiles; Mangroves; Megacities; Meretrix lyrata; Microplastic; Pollutants; Rivers; Saigon River; Temporal variations; Tissue; Tissues; Vietnam
• ISSN: 0025-326X; 1879-3363
• DOI: 10.1016/j.marpolbul.2021.113302

Anthropogenic fibres are an emerging pollutant worldwide. The Can Gio mangrove area is located downstream of the Saigon River, and is characterised by high level of anthropogenic fibres originating from domestic and industrial textile and apparel manufacturing. In this area, biota is thus subjected to a high potential risk of anthropogenic fibre contamination. This study aims to characterise the accumulation of anthropogenic fibres in different tissues, i.e. gills, digestive systems, and remaining tissues, of white clams (Meretrix lyrata) cultivated in the Can Gio beach sand, during a seven-month sampling period. The results showed an average concentration of 3.6 ± 2.1 fibres individual−1 or 2.7 ± 2.4 fibres g−1 ww. Higher fibre accumulation was observed in remaining tissues than in gills and digestive systems, and no temporal variation was observed in all clam tissues. The intake of fibres by humans consuming clams was estimated to be 324 fibres inhabitant−1 yr−1. •Anthropogenic fibres in clams were 3.6 ± 2.1 fibres individual−1 or 2.7 ± 2.4 fibre g−1 ww.•Higher fibre accumulation was observed in the remaining tissues.•Fibre concentrations in all the clam tissues did not vary temporally.•Fibres may accumulate by adherence to remaining tissues.