期刊
MARINE POLLUTION BULLETIN
卷 145, 期 -, 页码 604-610出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2019.06.062
关键词
Plastics; Pacific Ocean; Mexico; Marine debris; Seasonality; Rainfall
资金
- Mexico's National Council for Science and Technology (CONACYT)
- BEIFI
- Proyecto Manta Pacific Mexico
- Manta Trust
- Pelagios Kakunja
- Trophic ecology of the sharks from the western coast of the California Gulf project [SIP 20181417]
- National Geographic Society [WW-263ER-17]
- CONACYT
A floating plastic monitoring program was conducted for two years on a weekly basis in Banderas Bay, Mexico. A total of 94 samples were collected from May 2016 to April 2018 in the southern part of the bay. Half (57%) of them contained plastic debris; 79% of it being < 5 mm in length. Polypropylene and Polyethylene were the most abundant polymers, accounting for 45% and 43% of the plastic pieces (pp), respectively. The highest abundance of plastic pieces was found in July 2016, with a maximum of 0.3 pp/m(3) found in one sample. The amount of floating plastics was significantly higher in the hurricane season compared to the dry season (p < 0.001). This suggests that rainfall may play a significant role in the offload of plastics from land-based sources into the bay.
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