A new study has been published on Marine Pollution Bulletin about trace elements. This study aims to provide the first concurrent assessment from 12 elasmobranch species from Djibouti (Gulf of Aden). The relationships between trace elements concentrations, biological factors, and δ13C and δ15N were assessed to identify the factors contributing to the bioaccumulation of trace elements in the sampled species and tissues. Finally, δ15N data were used to explore the trophic structure and elasmobranchs trophic positions to estimate the trophic magnification transfer from primary consumer (zooplankton) up to top predator species (shark species). The study has been carried out by an international team including Insubria University and IGG-CNR.


G. Boldrocchi, D. Spanu, M. Mazzoni, M. Omar, I. Baneschi, C. Boschi, L. Zinzula, R. Bettinetti, D. Monticelli. Bioaccumulation and biomagnification in elasmobranchs: A concurrent assessment of trophic transfer of trace elements in 12 species from the Indian Ocean. Marine Pollution Bulletin, Volume 172, 2021, 112853, https://doi.org/10.1016/j.marpolbul.2021.112853

Article available at https://www.sciencedirect.com/science/article/pii/S0025326X21008870.

For further information:

Ilaria Baneschi - ilaria.baneschi(at)igg.cnr.it