PMID- 27884466 OWN - NLM STAT- MEDLINE DCOM- 20170313 LR - 20181202 IS - 1873-6424 (Electronic) IS - 0269-7491 (Linking) VI - 220 IP - Pt B DP - 2017 Jan TI - Linking pollutant exposure of humpback whales breeding in the Indian Ocean to their feeding habits and feeding areas off Antarctica. PG - 1090-1099 LID - S0269-7491(16)32178-9 [pii] LID - 10.1016/j.envpol.2016.11.032 [doi] AB - Humpback whales, Megaptera novaeangliae, breeding off la Reunion Island (Indian Ocean) undergo large-scale seasonal migrations between summer feeding grounds near Antarctica and their reproductive winter grounds in the Indian Ocean. The main scope of the current study was to investigate chemical exposure of humpback whales breeding in the Indian Ocean by providing the first published data on this breeding stock concerning persistent organic pollutants (POPs), namely polychlorinated biphenyls (PCBs), hexachlorobenzene (HCB), hexachlorocyclohexanes (HCHs), DDT and its metabolites (DDTs), chlordane compounds (CHLs), polybrominated diphenyl ethers (PBDEs), and methoxylated PBDEs (MeO-PBDEs). Analyses of stable isotopes delta(13)C and delta(15)N in skin resulted in further insight in their feeding ecology, which was in agreement with a diet focused mainly on low trophic level prey species, such as krill from Antarctica. POPs were measured in all humpback whales in the order of HCB > DDTs > CHLs > HCHs > PCBs > PBDEs > MeO-BDEs. HCB (median: 24 ng g(-1) lw) and DDTs (median: 7.7 ng g(-1) lw) were the predominant compounds in all whale biopsies. Among DDT compounds, p,p'-DDE was the major organohalogenated pollutant, reflecting its long-term accumulation in humpback whales. Significantly lower concentrations of HCB and DDTs were found in females than in males (p < 0.001). Other compounds were similar between the two genders (p > 0.05). Differences in the HCB and DDTs suggested gender-specific transfer of some compounds to the offspring. POP concentrations were lower than previously reported results for humpback whales sampled near the Antarctic Peninsula, suggesting potential influence of their nutritional status and may indicate different exposures of the whales according to their feeding zones. Further investigations are required to assess exposure of southern humpback whales throughout their feeding zones. CI - Copyright A(c) 2016 Elsevier Ltd. All rights reserved. FAU - Das, Krishna AU - Das K AD - Laboratory of Oceanology-MARE, University of Liege, 4000 Liege, Belgium. Electronic address: krishna.das@ulg.ac.be. FAU - Malarvannan, Govindan AU - Malarvannan G AD - Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium. FAU - Dirtu, Alin AU - Dirtu A AD - Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium; Department of Chemistry, "Al. I. Cuza" University of Iasi, 700506 Iasi, Romania. FAU - Dulau, Violaine AU - Dulau V AD - Groupe Local d'Observation et d'Identification des Cetaces (GLOBICE), 30 Chemin Parc Cabris, Grand Bois, 97 410 Saint Pierre, Reunion. FAU - Dumont, Magali AU - Dumont M AD - Laboratory of Oceanology-MARE, University of Liege, 4000 Liege, Belgium. FAU - Lepoint, Gilles AU - Lepoint G AD - Laboratory of Oceanology-MARE, University of Liege, 4000 Liege, Belgium. FAU - Mongin, Philippe AU - Mongin P AD - BNOI-ONCFS, Parc de la Providence, 97400 Saint-Denis, Reunion. FAU - Covaci, Adrian AU - Covaci A AD - Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium. LA - eng PT - Journal Article DEP - 20161122 PL - England TA - Environ Pollut JT - Environmental pollution (Barking, Essex : 1987) JID - 8804476 RN - 0 (Water Pollutants, Chemical) SB - IM MH - Animal Migration/*physiology MH - Animals MH - Antarctic Regions MH - *Feeding Behavior MH - Female MH - *Humpback Whale MH - Indian Ocean MH - Male MH - Reproduction MH - Water Pollutants, Chemical/chemistry/metabolism/*toxicity OTO - NOTNLM OT - Baleen whale OT - Indian Ocean OT - Persistent organic pollutants OT - Reunion Island OT - Stable isotopes EDAT- 2016/11/26 06:00 MHDA- 2017/03/14 06:00 CRDT- 2016/11/26 06:00 PHST- 2016/07/30 00:00 [received] PHST- 2016/11/10 00:00 [revised] PHST- 2016/11/10 00:00 [accepted] PHST- 2016/11/26 06:00 [pubmed] PHST- 2017/03/14 06:00 [medline] PHST- 2016/11/26 06:00 [entrez] AID - S0269-7491(16)32178-9 [pii] AID - 10.1016/j.envpol.2016.11.032 [doi] PST - ppublish SO - Environ Pollut. 2017 Jan;220(Pt B):1090-1099. doi: 10.1016/j.envpol.2016.11.032. Epub 2016 Nov 22.