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@article{1788338,
author = {GarciaandCegarra, Ana M. and Jung, JeanandLuc and Orrego, Rodrigo and Padilha, Janeide de A. and Malm, Olaf and FerreiraandBraz, Bernardo and Santelli, Ricardo E. and Pozo, Karla Andrea and Přibylová, Petra and AlvaradoandRybak, Mario and Azat, Claudio and Kidd, Karen A. and Espejo, Winfred and Chiang, Gustavo and Bahamonde, Paulina},
article_location = {Amsterdam},
article_number = {May 2021},
doi = {http://dx.doi.org/10.1016/j.scitotenv.2021.145259},
keywords = {Globicephala melas; Persistent organic pollutants; Trace elements; Mass stranding; Chilean Patagonia},
language = {eng},
issn = {0048-9697},
journal = {Science of the Total Environment},
title = {Persistence, bioaccumulation and vertical transfer of pollutants in long-finned pilot whales stranded in Chilean Patagonia},
url = {https://www.sciencedirect.com/science/article/pii/S0048969721003259?via%3Dihub},
volume = {770},
year = {2021}
}
TY - JOUR
ID - 1788338
AU - Garcia-Cegarra, Ana M. - Jung, Jean-Luc - Orrego, Rodrigo - Padilha, Janeide de A. - Malm, Olaf - Ferreira-Braz, Bernardo - Santelli, Ricardo E. - Pozo, Karla Andrea - Přibylová, Petra - Alvarado-Rybak, Mario - Azat, Claudio - Kidd, Karen A. - Espejo, Winfred - Chiang, Gustavo - Bahamonde, Paulina
PY - 2021
TI - Persistence, bioaccumulation and vertical transfer of pollutants in long-finned pilot whales stranded in Chilean Patagonia
JF - Science of the Total Environment
VL - 770
IS - May 2021
SP - 1-12
EP - 1-12
PB - Elsevier Science
SN - 00489697
KW - Globicephala melas
KW - Persistent organic pollutants
KW - Trace elements
KW - Mass stranding
KW - Chilean Patagonia
UR - https://www.sciencedirect.com/science/article/pii/S0048969721003259?via%3Dihub
N2 - Long-finned pilot whales (LFPW) are cetaceans with strong social groups often involved in mass strandings worldwide. However, these beachings occur for reasons that are not fully understood. In 2016, 124 LFPW were stranded on the Chilean Patagonian islands, offering a unique opportunity to obtain crucial information on the ecology, biology, and genetics of this population. In addition, we examined whether persistent organic pollutants (POPs) and trace elements (TEs) were responsible for this mass mortality. Stable isotopes (δ13C & δ15N) and genetic analyses were used to reconstruct the trophic ecology, social structure, and kinship of LFPW and compared to POPs and TEs levels found in LFPW. Mitochondrial DNA analyses on 71 individuals identified four maternal lineages within the stranded LFPW. Of these animals, 32 individuals were analyzed for a suite of POPs, TEs, and lipid content in blubber. The highest levels were found for ΣDDXs (6 isomers) (542.46 ± 433.46 ng/g, lw) and for total Hg (2.79 ± 1.91 mg/kg, dw). However, concentrations found in these LFPW were lower than toxicity thresholds and those reported for LFPW stranded in other regions. Evidence was found of ΣDDX, Σ7PCBs, and Cd bioaccumulation and maternal transfer of POPs in mother/offspring groups. Nevertheless, no clear relationship between contaminant concentrations and LFPW mortality was established. Further research is still needed to assess LFPW populations including conservations status and exposure to chemicals in remote areas such as Patagonia.
ER -
GARCIA-CEGARRA, Ana M., Jean-Luc JUNG, Rodrigo ORREGO, Janeide de A. PADILHA, Olaf MALM, Bernardo FERREIRA-BRAZ, Ricardo E. SANTELLI, Karla Andrea POZO, Petra PŘIBYLOVÁ, Mario ALVARADO-RYBAK, Claudio AZAT, Karen A. KIDD, Winfred ESPEJO, Gustavo CHIANG and Paulina BAHAMONDE. Persistence, bioaccumulation and vertical transfer of pollutants in long-finned pilot whales stranded in Chilean Patagonia. \textit{Science of the Total Environment}. Amsterdam: Elsevier Science, 2021, vol.~770, May 2021, p.~1-12. ISSN~0048-9697. Available from: https://dx.doi.org/10.1016/j.scitotenv.2021.145259.
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