PMID- 27113024 OWN - NLM STAT- MEDLINE DCOM- 20170515 LR - 20191210 IS - 1879-3363 (Electronic) IS - 0025-326X (Linking) VI - 107 IP - 1 DP - 2016 Jun 15 TI - Validating the use of biopsy sampling in contamination assessment studies of small cetaceans. PG - 364-369 LID - S0025-326X(16)30222-3 [pii] LID - 10.1016/j.marpolbul.2016.04.021 [doi] AB - Remote biopsy sampling is the most common technique for acquiring samples from free-ranging marine mammals. However, such techniques may result in variable sampling being sometimes superficial skin and blubber biopsies. For decades, blubber has been used to monitor the exposure of marine mammals to persistent organic pollutants (POPs), but little is known regarding the variability of POPs as a function of blubber depth in small cetaceans and the available literature offers variable results. Thus, the aim of the present study was to validate biopsy sampling for monitoring contaminant concentrations in small, free-ranging cetaceans. Samples from the dorsal blubber of 10 incidentally captured Atlantic spotted dolphins (Stenella frontalis) were separated into two different layers (outer and inner) to investigate the influence of sampling depth on POP concentrations. POP concentrations were compared to those of the full blubber layer. The results revealed no significant differences in lipid content between males and females or among the inner, outer and full blubber layers (p>0.05). Moreover, the wet and lipid weight concentrations of all POP classes analysed [i.e. polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethanes (DDTs), polybrominated diphenyl ethers (PBDEs), hexachlorobenzene (HCB), hexachlorocyclohexanes (HCHs), chlordanes (CHLs) and mirex] did not differ significantly with blubber depth (p>0.05). POP classes followed the same decreasing order of wet weight concentrations in blubber layers and full blubber: PCBs>DDTs>PBDEs>mirex>HCB>HCHs>CHLs. Moreover, there was a low degree of differentiation in the accumulation of POP congeners. The present findings indicated that the distribution of contaminants was homogenous with blubber depth, which validates the use of biopsy sampling for the assessment of contaminants in small cetaceans. CI - Copyright (c) 2016 Elsevier Ltd. All rights reserved. FAU - Mendez-Fernandez, Paula AU - Mendez-Fernandez P AD - Laboratorio de Quimica Organica Marinha, Instituto Oceanografico, Universidade de Sao Paulo, Sao Paulo, SP 05508-120, Brazil. Electronic address: paula.mendez_fernandez@outlook.com. FAU - Galluzzi Polesi, Paola AU - Galluzzi Polesi P AD - Laboratorio de Quimica Organica Marinha, Instituto Oceanografico, Universidade de Sao Paulo, Sao Paulo, SP 05508-120, Brazil. FAU - Taniguchi, Satie AU - Taniguchi S AD - Laboratorio de Quimica Organica Marinha, Instituto Oceanografico, Universidade de Sao Paulo, Sao Paulo, SP 05508-120, Brazil. FAU - de O Santos, Marcos C AU - de O Santos MC AD - Laboratorio de Biologia da Conservacao de Mamiferos Aquaticos, Instituto Oceanografico, Universidade de Sao Paulo, Sao Paulo, SP 05508-120, Brazil. FAU - Montone, Rosalinda C AU - Montone RC AD - Laboratorio de Quimica Organica Marinha, Instituto Oceanografico, Universidade de Sao Paulo, Sao Paulo, SP 05508-120, Brazil. LA - eng PT - Journal Article PT - Validation Study DEP - 20160423 PL - England TA - Mar Pollut Bull JT - Marine pollution bulletin JID - 0260231 RN - 0 (Halogenated Diphenyl Ethers) RN - 0 (Water Pollutants, Chemical) RN - 12789-03-6 (Chlordan) RN - 4Z87H0LKUY (Hexachlorobenzene) RN - CIW5S16655 (DDT) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Adipose Tissue/*chemistry MH - Animals MH - Biopsy MH - Chlordan/analysis MH - DDT/analysis MH - Environmental Monitoring MH - Female MH - Halogenated Diphenyl Ethers/*analysis MH - Hexachlorobenzene/analysis MH - Male MH - Polychlorinated Biphenyls/*analysis MH - *Stenella MH - Water Pollutants, Chemical/*analysis OTO - NOTNLM OT - Blubber OT - Contamination assessment OT - Persistent organic pollutants OT - Stenella frontalis EDAT- 2016/04/27 06:00 MHDA- 2017/05/16 06:00 CRDT- 2016/04/27 06:00 PHST- 2016/01/23 00:00 [received] PHST- 2016/04/07 00:00 [revised] PHST- 2016/04/10 00:00 [accepted] PHST- 2016/04/27 06:00 [entrez] PHST- 2016/04/27 06:00 [pubmed] PHST- 2017/05/16 06:00 [medline] AID - S0025-326X(16)30222-3 [pii] AID - 10.1016/j.marpolbul.2016.04.021 [doi] PST - ppublish SO - Mar Pollut Bull. 2016 Jun 15;107(1):364-369. doi: 10.1016/j.marpolbul.2016.04.021. Epub 2016 Apr 23.