Mercury in Ten Storm-Petrel Populations from the Antarctic to the Subtropics
The oceans become increasingly contaminated as a result of global industrial production and consumer behaviour, and this affects wildlife in areas far removed from sources of pollution. Migratory seabirds such as storm-petrels may forage in areas with different contaminant levels throughout the annu...
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ftubgiessen:oai:jlupub.ub.uni-giessen.de:jlupub/18980 2024-05-12T07:54:55+00:00 Mercury in Ten Storm-Petrel Populations from the Antarctic to the Subtropics Quillfeldt, Petra Bedolla-Guzmán, Yuliana Libertelli, Marcela M. Cherel, Yves Massaro, Melanie Bustamante, Paco 2024-02-07T11:05:32Z application/pdf https://jlupub.ub.uni-giessen.de//handle/jlupub/18980 https://doi.org/10.22029/jlupub-18341 en eng https://jlupub.ub.uni-giessen.de//handle/jlupub/18980 http://dx.doi.org/10.22029/jlupub-18341 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ ddc:570 ddc:590 article 2024 ftubgiessen https://doi.org/10.22029/jlupub-18341 2024-04-17T09:59:53Z The oceans become increasingly contaminated as a result of global industrial production and consumer behaviour, and this affects wildlife in areas far removed from sources of pollution. Migratory seabirds such as storm-petrels may forage in areas with different contaminant levels throughout the annual cycle and may show a carry-over of mercury from the winter quarters to the breeding sites. In this study, we compared mercury levels among seven species of storm-petrels breeding on the Antarctic South Shetlands and subantarctic Kerguelen Islands, in temperate waters of the Chatham Islands, New Zealand, and in temperate waters of the Pacific off Mexico. We tested for differences in the level of contamination associated with breeding and inter-breeding distribution and trophic position. We collected inert body feathers and metabolically active blood samples in ten colonies, reflecting long-term (feathers) and short-term (blood) exposures during different periods ranging from early non-breeding (moult) to late breeding. Feathers represent mercury accumulated over the annual cycle between two successive moults. Mercury concentrations in feathers ranged over more than an order of magnitude among species, being lowest in subantarctic Grey-backed Storm-petrels (0.5 μg g−1 dw) and highest in subtropical Leach’s Storm-petrels (7.6 μg g−1 dw, i.e. posing a moderate toxicological risk). Among Antarctic Storm-petrels, Black-bellied Storm-petrels had threefold higher values than Wilson’s Storm-petrels, and in both species, birds from the South Shetlands (Antarctica) had threefold higher values than birds from Kerguelen (subantarctic Indian Ocean). Blood represents mercury taken up over several weeks, and showed similar trends, being lowest in Grey-backed Storm-petrels from Kerguelen (0.5 μg g−1 dw) and highest in Leach’s Storm-petrels (3.6 μg g−1 dw). Among Antarctic storm-petrels, species differences in the blood samples were similar to those in feathers, but site differences were less consistent. Over the breeding season, ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Kerguelen Islands Publication Server of the Justus-Liebig-University of Giessen Antarctic The Antarctic Kerguelen Kerguelen Islands Pacific Indian New Zealand |
institution |
Open Polar |
collection |
Publication Server of the Justus-Liebig-University of Giessen |
op_collection_id |
ftubgiessen |
language |
English |
topic |
ddc:570 ddc:590 |
spellingShingle |
ddc:570 ddc:590 Quillfeldt, Petra Bedolla-Guzmán, Yuliana Libertelli, Marcela M. Cherel, Yves Massaro, Melanie Bustamante, Paco Mercury in Ten Storm-Petrel Populations from the Antarctic to the Subtropics |
topic_facet |
ddc:570 ddc:590 |
description |
The oceans become increasingly contaminated as a result of global industrial production and consumer behaviour, and this affects wildlife in areas far removed from sources of pollution. Migratory seabirds such as storm-petrels may forage in areas with different contaminant levels throughout the annual cycle and may show a carry-over of mercury from the winter quarters to the breeding sites. In this study, we compared mercury levels among seven species of storm-petrels breeding on the Antarctic South Shetlands and subantarctic Kerguelen Islands, in temperate waters of the Chatham Islands, New Zealand, and in temperate waters of the Pacific off Mexico. We tested for differences in the level of contamination associated with breeding and inter-breeding distribution and trophic position. We collected inert body feathers and metabolically active blood samples in ten colonies, reflecting long-term (feathers) and short-term (blood) exposures during different periods ranging from early non-breeding (moult) to late breeding. Feathers represent mercury accumulated over the annual cycle between two successive moults. Mercury concentrations in feathers ranged over more than an order of magnitude among species, being lowest in subantarctic Grey-backed Storm-petrels (0.5 μg g−1 dw) and highest in subtropical Leach’s Storm-petrels (7.6 μg g−1 dw, i.e. posing a moderate toxicological risk). Among Antarctic Storm-petrels, Black-bellied Storm-petrels had threefold higher values than Wilson’s Storm-petrels, and in both species, birds from the South Shetlands (Antarctica) had threefold higher values than birds from Kerguelen (subantarctic Indian Ocean). Blood represents mercury taken up over several weeks, and showed similar trends, being lowest in Grey-backed Storm-petrels from Kerguelen (0.5 μg g−1 dw) and highest in Leach’s Storm-petrels (3.6 μg g−1 dw). Among Antarctic storm-petrels, species differences in the blood samples were similar to those in feathers, but site differences were less consistent. Over the breeding season, ... |
format |
Article in Journal/Newspaper |
author |
Quillfeldt, Petra Bedolla-Guzmán, Yuliana Libertelli, Marcela M. Cherel, Yves Massaro, Melanie Bustamante, Paco |
author_facet |
Quillfeldt, Petra Bedolla-Guzmán, Yuliana Libertelli, Marcela M. Cherel, Yves Massaro, Melanie Bustamante, Paco |
author_sort |
Quillfeldt, Petra |
title |
Mercury in Ten Storm-Petrel Populations from the Antarctic to the Subtropics |
title_short |
Mercury in Ten Storm-Petrel Populations from the Antarctic to the Subtropics |
title_full |
Mercury in Ten Storm-Petrel Populations from the Antarctic to the Subtropics |
title_fullStr |
Mercury in Ten Storm-Petrel Populations from the Antarctic to the Subtropics |
title_full_unstemmed |
Mercury in Ten Storm-Petrel Populations from the Antarctic to the Subtropics |
title_sort |
mercury in ten storm-petrel populations from the antarctic to the subtropics |
publishDate |
2024 |
url |
https://jlupub.ub.uni-giessen.de//handle/jlupub/18980 https://doi.org/10.22029/jlupub-18341 |
geographic |
Antarctic The Antarctic Kerguelen Kerguelen Islands Pacific Indian New Zealand |
geographic_facet |
Antarctic The Antarctic Kerguelen Kerguelen Islands Pacific Indian New Zealand |
genre |
Antarc* Antarctic Antarctica Kerguelen Islands |
genre_facet |
Antarc* Antarctic Antarctica Kerguelen Islands |
op_relation |
https://jlupub.ub.uni-giessen.de//handle/jlupub/18980 http://dx.doi.org/10.22029/jlupub-18341 |
op_rights |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.22029/jlupub-18341 |
_version_ |
1798853402778664960 |