Trace elements in oceanic pelagic communities in the western Indian Ocean

Abstract : The mineral composition of target and non-target pelagic fish caught by purse-seiners and longliners in the western-central Indian Ocean was determined. From the ten essential elements analysed, selenium and zinc showed the highest concentrations in swordfish and blue marlin while Indian mackerel appeared as a good source of copper, iron and chrome. All catch had levels of lead and cadmium, two toxic elements, below the maximum sanitary limits. Although some concerns were raised regarding mercury concentrations in the largest species (wahoo, swordfish and blue marlin), molar ratios of mercury and selenium indicate that all oceanic pelagic fish from the western-central Indian Ocean are safe for human consumption. This study also gives insights on the relationships between the levels of essential and toxic elements in fish muscle and the size, trophic position and diet sources of the studied pelagic species.
Document type :
Journal articles
Complete list of metadatas

Cited literature [56 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01458417
Contributor : Paco Bustamante <>
Submitted on : Monday, February 6, 2017 - 7:46:55 PM
Last modification on : Friday, May 18, 2018 - 2:52:08 PM
Long-term archiving on : Sunday, May 7, 2017 - 2:52:59 PM

File

Bodin et al 2017 CHEM.pdf
Files produced by the author(s)

Identifiers

Citation

Nathalie Bodin, Dora Lesperance, Rona Albert, Stephanie Hollanda, Philippe Michaud, et al.. Trace elements in oceanic pelagic communities in the western Indian Ocean. Chemosphere, Elsevier, 2017, 174C, pp.354-362. ⟨10.1016/j.chemosphere.2017.01.099⟩. ⟨hal-01458417⟩

Share

Metrics

Record views

263

Files downloads

458