期刊
MARINE POLLUTION BULLETIN
卷 186, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2022.114486
关键词
Anthropogenic pollution; Marine litter; Plastics; Toothed whales; Cetaceans; South America
This study examined the ingestion of large marine debris in 21 odontocete species in southern Brazil and northern Argentina. Of the total individuals studied, 8% had ingested marine debris, with plastics being the most common type of debris. Seven of the nine species that had ingested marine debris had been previously observed ingesting this pollutant in other areas. Two endemic odontocetes in the Southwest Atlantic Ocean were also identified as affected organisms.
In this paper, we examined the ingestion of large marine debris (1 mm-1010 mm) in 21 odontocete species that were found dead or by-caught in low frequency in southern Brazil (Rio Grande do Sul State) and northern Argentina (Buenos Aires) between 1988 and 2020. Eight percent of the total individuals studied (13 out of 156), representing nine species, had ingested marine debris. Most of items were made of plastics (68 %), and within them, single-use plastic (e.g. plastic bags) were the dominant man-made items. Seven of the nine species that had ingested marine debris have been previously registered ingestion of this pollutant in other areas of their distribution. We also incorporated endemic odontocetes of the Southwest Atlantic Ocean to the list of affected marine organisms: the Burmeister's porpoise Phocoena spinipinnis, and the Lahille's bottlenose dolphin, Tursiops gephyreus.
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