Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 837, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2022.155631
Keywords
Microdebris; Microplastics; Paint sheets; Estuarine crabs; Metal ions; Chemical analytical techniques; Bahia Blanca estuary
Categories
Funding
- FONCYT, Argentina [24/Q109]
- PGI UNS [PICT 2019-2241, 24/B299]
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Synthetic microdebris, including microplastics, can impact aquatic ecosystems and food webs. This study focused on synthetic microdebris contamination in water, sediments, and crabs from the Bahia Blanca estuary in Argentina, revealing the presence of various types of microplastics.
Synthetic microdebris (particles of < 5 mm) are a worldwide concern because they can affect the community structure of the aquatic ecosystems, organisms, and even food webs. For the biomonitoring of synthetic microdebris (especially microplastics, MPs), mainly benthic invertebrates are used, but crabs have been less studied in the literature. We studied the synthetic microdebris contamination in water, sediments, and three representative intertidal crabs (Neohelice granulata, Cyrtograpsus angulatus and Leptuca uruguayensis) with different lifestyles from the Bahia Blanca estuary, Argentina. The results obtained show the presence of cotton-polyamide (PA), polyethylene (PE), and polyethylene terephthalate (PET) in surface waters. In sediments, we identified cellulose modified (CE), polyester (PES), polyethylene (PE), and alkyd resin, while in crabs, cotton-PA and CE were the predominant ones. The MPs abundance ranged from 8 to 68 items L-1 in surface water, from 971 to 2840 items Kg(-1) in sediments, and from 0 to 2.58 items g-1 ww for the three species of crabs. Besides, paint sheets ranged from 0 to 17 in the total samples, with Cr, Mo, Ti, Pb,
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