期刊
MARINE POLLUTION BULLETIN
卷 168, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2021.112407
关键词
Gastropod; Holothurian; Bioaccumulation; PAHs; PCBs; DDXs; Trace metals; Mar Menor lagoon
资金
- Spanish Inter-Ministerial Science and Technology Commission
- European Union through the European Regional Development Fund (ERDF) through `DECOMAR' project (CICYT) [CTM2008-01832]
- Seneca Foundation (Region of Murcia, Spain) [15398/PI/10]
- European Union through the European Regional Development Fund (ERDF) through PLAS-MED project [CTM2017-89701C3-3-R]
The study characterized the seasonal bioaccumulation of trace metals, PAHs, PCBs, and OCPs in sea snail and sea cucumber from Mar Menor lagoon, with the highest concentrations of p,p'-DDE detected in certain areas and biomagnification factors higher than 5 for some compounds.
The seasonal bioaccumulation of trace metals, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorinated pesticides (OCPs) in sea snail (Hexaplex trunculus) and sea cucumber (Holothuria polii) from Mar Menor lagoon were characterised. The highest concentrations of p,p'-DDE were detected in the central and south part of Mar Menor lagoon. However, the highest concentrations of metals in sea snail and holothurians were detected in the influence area of El Beal wadi. Biomagnification factors (BMF) in sea snail from cockle (sea snail-cockle concentration ratio) were higher than 5 for metal and organochlorinated compounds. However, similar concentrations were observed in both species for PAHs due to gastropods capability of metabolising these pollutants. Consequently, sea snail is proposed as a sentinel for trace metals, PCBs and OCPs in the coastal lagoons, not only due to its bioaccumulation and biomagnification capacity but also the easy sampling and amply distribution in many coastal areas.
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