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. 2020 Aug:157:111307.
doi: 10.1016/j.marpolbul.2020.111307. Epub 2020 May 25.

Metal pollution and its biological effects in swimming crab Portunus trituberculatus by NMR-based metabolomics

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Metal pollution and its biological effects in swimming crab Portunus trituberculatus by NMR-based metabolomics

Deliang Yu et al. Mar Pollut Bull. 2020 Aug.

Abstract

Metal pollution in the Bohai Sea in China has posed a potential risk on marine organisms. In this work, crabs (Portunus trituberculatus) were sampled from four sites, namely a reference (site 3934) and three metal-polluted (sites 6151, 6351, and 3562) sites, located in the Bohai Sea. Metal concentrations in crab gill tissues were measured using inductively coupled plasma mass spectrometry. Cu, Zn, and Cd in crab samples from S3562 presented the highest concentrations. Particularly, Cu concentration exceeded the marine biological quality standard II. Cd contents in crab samples from all metal-polluted sites exceeded the marine biological quality standard I. Nuclear magnetic resonance-based metabolomics indicated metal pollution-induced immune stresses in crab samples from all metal-polluted sites. Metal pollution in S6151 and S6351 disturbed energy metabolism through differential pathways. For crab samples from S3562, the metabolic profile suggested that metal pollution mainly induced osmotic stress.

Keywords: Biological effects; Metabolomics; Metal pollution; Portunus trituberculatus.

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Conflict of interest statement

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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