التفاصيل البيبلوغرافية
| العنوان: |
Bioaccumulation of metals in the planktonic food web in the Gulf of Guinea. |
| المؤلفون: |
Chevrollier, Lou-Anne, Koski, Marja, Søndergaard, Jens, Trapp, Stefan, Aheto, Denis Worlanyo, Darpaah, George, Nielsen, Torkel Gissel |
| المصدر: |
Marine Pollution Bulletin; Jun2022, Vol. 179, pN.PAG-N.PAG, 1p |
| مصطلحات موضوعية: |
FOOD chains, BIOACCUMULATION, HEAVY metals, METALS, MARINE resources, TRACE metals, TRACE elements in water, ECOSYSTEMS |
| مصطلحات جغرافية: |
GULF of Guinea, GHANA |
| مستخلص: |
Metal contamination is a threat for marine ecosystems from an environmental, economic and public health perspective, particularly in regions where local communities rely on marine resources such as the Gulf of Guinea. Plankton are the point of entry for metals in the marine food web, potentially contaminating seafood. We investigated the bioaccumulation of 12 metals in three size classes of plankton from the coast of Ghana. Metal concentrations were high in the micro- and mesoplankton, in particular for Mn, Mo and Zn (up to 100 mg kg−1) and Fe (>100 mg kg−1). All metals significantly bioaccumulated (103–106 L kg−1) and the bioaccumulation increased from the smallest to larger size fractions, suggesting a biomagnification. These metals included the highly toxic elements As, Cd and Pb. Our results highlight the need to monitor metal occurrence in the Gulf of Guinea, to reduce pollution and ensure food safety, in accordance with the UN SDG #14. • All metals highly bioaccumulated in the size classes of plankton investigated. • Concentrations of As, Cd, Cu, Pb, Fe, Mn, and V in plankton >50 μm exceeded the levels measured in other tropical areas. • Bioaccumulation increased from the smallest to larger size classes of plankton, particularly for non-essential metals. • High bioaccumulation of toxic metals can pose a risk for the coastal communities in the Gulf of Guinea depending on seafood. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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