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Organohalogen compounds in blubber of Indo-Pacific bottlenose dolphin (Tursiops aduncus) and spinner dolphin (Stenella longirostris) from Zanzibar, Tanzania Texte intégral
2010
Mwevura, Haji | Amir, Omar A. | Kishimba, Michael | Berggren, P. | Kylin, Henrik
Blubber samples of Indo-Pacific bottlenose (Tursiops aduncus) and spinner (Stenella longirostris) dolphins from Zanzibar, East Africa, were analyzed for a wide range of organohalogen compounds. Methoxylated polybrominated diphenyl ethers (MeO-BDEs), presumably biogenic, were found at higher concentrations than anthropogenic organochlorine pesticides (OCPs). Only traces of industrial pollutants, such as polychlorinated biphenyls, were detected. The OCP levels found off Zanzibar were lower than those reported from other regions while MeO-BDE levels were higher. The relative composition of the OCPs indicated recent use of lindane (γ-hexachlorocyclohexane) and aged residues of DDT and technical HCH. Placental transfer was estimated to 2.5% and 0.5% of the total burden of OCPs and MeO-BDEs, respectively. Overall transfer from mother to calf in Indo-Pacific bottlenose dolphins was estimated to 72% and 85% for the OCPs and MeO-BDEs burdens, respectively. Health effects of MeO-BDEs are not known, but structural similarities with well-known environmental toxins are cause for concern.
Afficher plus [+] Moins [-]Trace elements in striped dolphins (Stenella coeruleoalba) from the western Mediterranean
1998
Monaci, F. | Borrel, A. | Leonzio, C. | Marsili, L. | Calzada, N. (Dipartimento di Biologia Ambientale, Universita degli Studi di Siena, via delle Cerchia 3, 53100 Siena (Italy))
The determination by HPLC of PCB and p,p'-DDE residues in marine mammals stranded on the Oregon coast, 1991-1995
1997
Hayteas, D.L. | Duffield, D.A. (Department of Biology, Portland State University, Portland, Oregon 97207 (USA))
