期刊
ESTUARINE COASTAL AND SHELF SCIENCE
卷 242, 期 -, 页码 -出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ecss.2020.106832
关键词
Microplastics; Gulf of gabes; Mediterranean sea; Hydrodynamics; Modelling
资金
- Tunisian Ministry of Higher Education and Scientific Research
- CNRS
- INSU MISTRALS MERMEX-MERITE project
- IRD French-Tunisian International Joint Laboratory (LMI) COSYS-Med
The Mediterranean Sea has been described as one of the most affected areas by marine litter in the world. Although microplastics and their effects have been investigated in this area, most of the currently available studies have been limited to the northwestern part of the basin. This study constitutes a first attempt to determine the abundance, characteristics and composition of microplastics in near surface waters of the Gulf of Gabes (southern Mediterranean Sea, Tunisia). Samples were collected using a 200 mu m-mesh size trawl net along two transects. The study revealed an average concentration of 63,739 items/km(2) where fragments and films were the most frequent microplastics. Polyethylene, reformulated polyethylene and polypropylene were the most abundant plastics identified among the samples (86-100%). The influence of hydrodynamics on microplastics in the Gulf of Gabes was investigated through the use of a Lagrangian tracking model to simulate the dispersion of particles in water. Modelling results seem to be in agreement with the reported distribution and characteristics of microplastics in this area.
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