| Full text | |
| Author(s): Show less - |
da Silva, Josilene
;
Taniguchi, Satie
;
Colabuono, Fernanda Imperatrice
;
Leonel, Juliana
;
Dalla Rosa, Luciano
;
Secchi, Eduardo Resende
;
Borges, Joao Carlos Gomes
;
Siciliano, Salvatore
;
Acevedo, Jorge
;
Aguayo-Lobo, Anelio
;
Baldassin, Paula
;
Montone, Rosalinda Carmela
;
Lourenco, Rafael Andre
Total Authors: 13
|
| Document type: | Journal article |
| Source: | Marine Pollution Bulletin; v. 194, p. 8-pg., 2023-09-01. |
| Abstract | |
Southern Hemisphere Megaptera novaeangliae undertake the longest migration, which reflect their exposure to lipophilic contaminants. To assess these changes, persistent organic pollutants were analyzed in blubber samples of humpback whales from three regions: the Antarctic Peninsula (n = 46), the Strait of Magellan, Chile (n = 22), and the Brazilian coast (n = 38). The similarity in PCB and HCB levels between individuals from feeding grounds and breeding grounds suggests contamination during feeding. The whales around the Antarctic Peninsula exhibited a predominance of tetrachlorobiphenyl PCBs. Whales feeding in the Strait of Magellan showed a slight prevalence of 5Cl biphenyls, likely due to their consumption of subantarctic krill species as well as small fishes potentially contaminated by industrial activities in Chile. The dominance of 5-6Cl congeners in whales in Brazil, may be attributed to the extreme physiological changes during fasting when whales utilize blubber reserves and metabolize lighter congeners, or transfer them to their calves. (AU) | |
| FAPESP's process: | 16/18348-1 - Multi-User Equipment approved in grant 2015/17763-2: triple quadrupole gas chromatograph-mass spectrometer (GC/MS/MS) |
| Grantee: | Márcia Caruso Bícego |
| Support Opportunities: | Multi-user Equipment Program |
| FAPESP's process: | 20/15305-5 - Mobilization of persistent organic pollutants in blubber of humpback whales (Megaptera novaeangliae) sampled in the feeding areas (Southern Ocean and southern Chilean Coast) and during migration to breeding and calving grounds off the coast of Brazil |
| Grantee: | Rafael Andre Lourenço |
| Support Opportunities: | Regular Research Grants |