| Full text | |
| Author(s): |
Dias, Patrick S.
[1]
;
Cipro, Caio V. Z.
[1]
;
Colabuono, I, Fernanda
;
Taniguchi, Satie
[2]
;
Montone, Rosalinda C.
[2]
Total Authors: 5
|
| Affiliation: | [1] Univ Sao Paulo, Inst Oceanog, Lab Quim Organ Marinha, BR-05508120 Sao Paulo, SP - Brazil
[2] Colabuono, Fernanda, I, Univ Sao Paulo, Inst Oceanog, Lab Quim Organ Marinha, BR-05508120 Sao Paulo, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | MARINE ORNITHOLOGY; v. 46, n. 2, p. 139-148, OCT 2018. |
| Web of Science Citations: | 1 |
| Abstract | |
Pollution is a key factor in efforts to conserve seabirds and their habitats. The Marine Biological Reserve of Rocas Atoll hosts the largest population of seabirds (similar to 23 000 individuals) breeding in Brazilian waters. In the present study at Rocas Atoll, liver samples were collected from dead individuals of five species (adults and nestlings): Masked Booby Sula dactylatra, Brown Booby Sula leucogaster, Brown Noddy Anous stolidus, Black Noddy Anous minutus, and Sooty Tern Onychoprion fuscatus. They were analyzed for three persistent organic pollutants (POPs): polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), and polybrominated diphenyl ethers. Carbon and nitrogen stable isotopes (delta C-13 and delta N-15) were also analyzed to assess feeding and foraging habits. PCBs (3.37-189 ng(.)g(-1)), OCPs (DDTs, 0.5-23.1 ng(.)g(-1)), and hexachlorobenzene (0.31-12.3 ng(.)g(-1)) were predominant overall, and results were generally consistent with previous studies. Despite the low levels of contaminants, intraspecific stratification was found, with lower concentrations in nestlings compared to adults, as expected. Stable isotopes revealed that differences in POP levels and PCB profiles were associated with diet and foraging patterns. Low levels of POPs at Rocas Atoll were consistent with patterns observed in studies of other low-latitude and high-latitude seabirds. (AU) | |
| FAPESP's process: | 10/05055-0 - Contamination of Atol das Rocas Marine Biological Reserve by solid residues and organic pollutants |
| Grantee: | Rosalinda Carmela Montone |
| Support Opportunities: | Regular Research Grants |