Metal and metalloid concentrations in the giant squid Architeuthis dux from Iberian waters

Abstract : This study investigated 14 trace elements (Ag, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, V and Zn) in the tissues of the giant squid Architeuthis dux from the Mediterranean and Atlantic Spanish waters. As for other families of cephalopods, the digestive gland and the branchial hearts of Architeuthis showed the highest concentrations of Ag, Cd, Co, Cu, Fe, Ni, Se, V and Zn, highlighting their major role in the bioaccumulation and detoxification processes. With the exception of Hg, the muscles showed relatively low trace element concentrations. Nevertheless, this tissue contained the main proportion of the total As, Cr, Hg, Mn, Ni, and Zn body burden because muscles represent the main proportion of the squid mass. These findings suggest that the metal metabolism is overall the same as other cephalopod families from neritic waters. In females, Zn concentrations increased in the digestive gland with the squid's weight likely reflecting physiological changes during sexual maturation. Comparing the trace element concentrations in the tissues of Architeuthis, higher Ag, Cu, Hg and Zn concentrations in the squid from the Mediterranean reflected different exposure conditions. In comparison to other meso-pelagic squids from the Bay of Biscay, Cd concentrations recorded in the digestive gland suggest that Architeuthis might feed on more contaminated prey or that it displays a longer life span that other cephalopods.
Type de document :
Article dans une revue
Marine Environmental Research, Elsevier, 2008, 66 (2), pp.278-287. 〈10.1016/j.marenvres.2008.04.003〉
Liste complète des métadonnées

Littérature citée [4 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-00289572
Contributeur : Paco Bustamante <>
Soumis le : dimanche 22 juin 2008 - 12:00:36
Dernière modification le : mercredi 10 octobre 2018 - 19:34:01
Document(s) archivé(s) le : vendredi 28 mai 2010 - 22:42:50

Fichier

Bustamante_et_al_MER_2008.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Paco Bustamante, Angel Gonzalez, Francisco Rocha, Pierre Miramand, Angel Guerra. Metal and metalloid concentrations in the giant squid Architeuthis dux from Iberian waters. Marine Environmental Research, Elsevier, 2008, 66 (2), pp.278-287. 〈10.1016/j.marenvres.2008.04.003〉. 〈hal-00289572〉

Partager

Métriques

Consultations de la notice

503

Téléchargements de fichiers

727