Dear colleagues,
We are pleased to announce our recent article
published in the journal
Environmental Pollution:
.Aznar-Alemany, Ò.,
Giménez, J., de Stephanis, R., Eljarrat, E., & Barceló, D. (2017).
Insecticide pyrethroids in liver of striped dolphin from the
Mediterranean Sea.
Environmental Pollution,
225, 346-353.
*Abstract*:
Pyrethroid pesticides were analysed in liver of striped dolphin (
Stenella coeruleoalba)
from the Alboran Sea (south of Spain, Mediterranean Sea). The
occurrence and bioaccumulation of pyrethroid insecticides in marine
mammal tissues from the northern hemisphere had never been determined
before. Pyrethroids were detected in 87% of the specimens with a mean
total concentration of 300 ng g
-1 lw ± 932 (range 2.7–5200 ng g
-1
lw). Permethrin and tetramethrin were the main contributors to the
pyrethroid profiles, with enantiospecific accumulation for the first and
isomer specific accumulation for the latter. Bioaccumulation of
pyrethroids was unlike that of persistent organic pollutants (POPs), as
pyrethroid concentrations were not correlated to the maturity stage of
the specimens. Concentrations slightly increased from calves to
juveniles, whereas juveniles presented similar concentrations to adults.
Metabolization of pyrethroids after achieving sexual maturity might
account for this pattern.
Article available at:
http://www.sciencedirect.com/science/article/pii/S0269749117300945