Presence and Potential Effects of Microplastics in the Digestive Tract of Two Small Species of Shark from the Balearic Islands

Author:

Torres Susana1,Compa Montserrat1ORCID,Box Antonio2,Pinya Samuel34ORCID,Sureda Antoni145ORCID

Affiliation:

1. Research Group in Community Nutrition and Oxidative Stress, University of Balearic Islands, 07122 Palma de Mallorca, Spain

2. Department of Agricultura, Ramaderia, Pesca, Caça i Cooperació Municipal, Consell Insular d’Eivissa, 07800 Eivissa, Spain

3. Interdisciplinary Ecology Group, Department of Biology, University of the Balearic Islands, 07122 Palma de Mallorca, Spain

4. Health Research Institute of Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain

5. CIBER Pathophysiology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain

Abstract

In recent years, there has been an increase in the reporting of plastic pollution in the marine environment and its effects on marine animals, especially bony fish. However, the prevalence and effect, particularly concerning biomarkers of oxidative stress, in elasmobranchs remain underreported and unknown. In this study, microplastics were observed in two elasmobranch species from the Balearic Islands: the small-spotted catshark (Scyliorhinus canicula) with an average of 4.38 ± 1.77 items per individual, and the blackmouth catshark (Galeus melastomus) with an average of 8.31 ± 2.46 items per individual. Moreover, for the first time, antioxidant and pro-inflammatory responses were determined in the digestive tract of individuals of both species. Specifically, the activation of antioxidant defences, mainly superoxide dismutase activity and glutathione levels, was observed, while the pro-inflammatory marker myeloperoxidase activity was also greater in individuals with a high abundance of microplastic items. Additionally, a significant increase in glutathione S-transferase activity in catsharks with high microplastic ingestion was evidenced, suggesting that the detoxification process was activated. Overall, the results of this study highlight that both catshark species are ingesting microplastics, which, in turn, are causing physiological effects at a cellular level. Considering this, continued monitoring of these species should include the presence of microplastics, and the results from this study can serve as baseline data for future research.

Publisher

MDPI AG

Reference73 articles.

1. Europe Plastics (2023, January 22). Plastics—The Facts 2020. An Analysis in European Plastic Production, Demand and Waste Data. Plastic Europe. Available online: https://plasticseurope.org/knowledge-hub/plastics-the-facts-2020/.

2. Current Status and Future Perspectives of Microplastic Pollution in Typical Cryospheric Regions;Zhang;Earth Sci. Rev.,2022

3. Solomando, A., Pujol, F., Sureda, A., and Pinya, S. (2022). Evaluating the Presence of Marine Litter in Cetaceans Stranded in the Balearic Islands (Western Mediterranean Sea). Biology, 11.

4. Litter Ingestion and Entanglement in Green Turtles: An Analysis of Two Decades of Stranding Events in the NE Atlantic;Vandeperre;Environ. Pollut.,2022

5. Microplastics in the Marine Environment;Andrady;Mar. Pollut. Bull.,2011

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3