Multi-elemental concentrations in the tissues of the oceanic squid Todarodes filippovae from Tasmania and the southern Indian Ocean

Abstract : This study investigates 14 elements (Ag, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, V and Zn) in the tissues of the oceanic ommastrephid squid Todarodes filippovae from waters surrounding Ile Amsterdam (southern Indian Ocean) and Tasmania (Australia). As for other cephalopod species, the digestive gland and branchial hearts showed the highest concentrations of many elements (Ag, Cd, Se, V and Zn, and Cr and Ni respectively) highlighting their role in bioaccumulation and detoxification processes. With the exception of As and Hg, the muscles showed relatively low trace element concentrations. Squid size was positively correlated to Ag, As, Cd, Hg and Zn concentrations in Tasmanian squid and negatively correlated to all but Hg and Zn concentrations in Ile Amsterdam squid. Furthermore, no differences in elemental concentrations were noted between sexes. There were, however, some differences between mated and non-mated females from Tasmania. Comparing elemental concentrations in squid from both islands, higher concentrations of Cd, Co, Cr, Ni, Pb and V in squid sampled in Ile Amsterdam reflect different exposure conditions. When considering T. filippovae as a dietary resource for humans it should be noted that, given their Hg content, squids from Ile Amsterdam are not recommended for consumption on a regular basis. Moreover, regardless of the squid's origin, digestive glands should be avoided as Cd and Hg concentrations were above the European Union authorized limits in these organs.
Document type :
Journal articles
Complete list of metadatas

Cited literature [67 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-00599931
Contributor : Paco Bustamante <>
Submitted on : Saturday, June 11, 2011 - 7:49:53 PM
Last modification on : Wednesday, June 19, 2019 - 10:50:03 AM
Long-term archiving on : Monday, September 12, 2011 - 2:21:20 AM

File

Kojadinovic_et_al_2011_EES.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

Jessica Kojadinovic, Christine H. Jackson, Yves Cherel, George D. Jackson, Paco Bustamante. Multi-elemental concentrations in the tissues of the oceanic squid Todarodes filippovae from Tasmania and the southern Indian Ocean. Ecotoxicology and Environmental Safety, Elsevier, 2011, 74 (5), pp.1238-1249. ⟨10.1016/j.ecoenv.2011.03.015⟩. ⟨hal-00599931⟩

Share

Metrics

Record views

481

Files downloads

342