Seagrass beds reveal high abundance of microplastic in sediments: A case study in the Baltic Sea.
Blue fibre
Marine pollution
Microlitter
Sediment
Water
Zostera marina
Journal
Marine pollution bulletin
ISSN: 1879-3363
Titre abrégé: Mar Pollut Bull
Pays: England
ID NLM: 0260231
Informations de publication
Date de publication:
Jul 2021
Jul 2021
Historique:
received:
12
10
2020
revised:
19
04
2021
accepted:
20
04
2021
pubmed:
4
5
2021
medline:
10
6
2021
entrez:
3
5
2021
Statut:
ppublish
Résumé
Microplastic (MPL) contamination in the marine environment is extensively studied yet little is known about the extent of MPL abundance in seagrass beds. The aim of this study was to evaluate MPL accumulation in coastal seagrass (Zostera marina) beds in the Baltic Sea, Estonia. Surface water was sampled by pumping using 40 μm plankton net, and sediments by trowel. MPL was extracted with NaCl, identified by microscopy and ATR-FTIR on selected samples. Surface water in the seagrass beds had 0.04-1.2 (median 0.14) MPL/L, similar to other areas of the Baltic Sea. Sediments had 0-1817 (median 208) MPL/kg (dwt), much higher than previously recorded from adjacent unvegetated and offshore sediments, thereby suggesting a strong ability of the sediments in seagrass beds to retain MPL. Of identified MPL, blue fibres were dominant in both the sampled media. Sediment characterization showed a correlation between MPL counts with poorly sorted sediments.
Identifiants
pubmed: 33940374
pii: S0025-326X(21)00451-3
doi: 10.1016/j.marpolbul.2021.112417
pii:
doi:
Substances chimiques
Microplastics
0
Plastics
0
Water Pollutants, Chemical
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
112417Informations de copyright
Copyright © 2021. Published by Elsevier Ltd.