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Author P. E. Michael, R. Thomson, C. Barbraud, K. Delord, S. De Grissac, A. J. Hobday, P. G. Strutton, G. N. Tuck, H. Weimerskirch, C. Wilcox
Title Illegal fishing bycatch overshadows climate as a driver of albatross population decline Type Journal
Year 2017 Publication Marine Ecology Progress Series Abbreviated Journal
Volume 579 Issue Pages 185-199
Keywords and unregulated (IUU) fishing Black-browed albatross Demographics Illegal Integrated population model Kerguelen Island Thalassarche melanophris unreported
Abstract
Programme 109
Campaign
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0171-8630, 1616-1599 ISBN 0171-8630, 1616-1599 Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 7171
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Author
Title Intra- and inter-individual variation in the foraging ecology of a generalist subantarctic seabird, the gentoo penguin Type Journal
Year 2017 Publication Marine ecology progress series Abbreviated Journal
Volume 578 Issue Pages 227-242
Keywords Behavioural consistency Diving behaviour Feeding ecology Foraging behaviour Individual specialisations Pygoscelis papua Stable isotopes
Abstract
Programme 394
Campaign
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0171-8630, 1616-1599 ISBN 0171-8630, 1616-1599 Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 6584
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Author
Title Multi-colony tracking reveals spatio-temporal variation in carry-over effects between breeding success and winter movements in a pelagic seabird Type Journal
Year 2017 Publication Marine Ecology Progress Series Abbreviated Journal
Volume 578 Issue Pages 167-181
Keywords Black-legged kittiwake Geolocation Life-history strategies Migration North Atlantic Reproduction Rissa tridactyla Seasonal interactions
Abstract
Programme 333
Campaign
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0171-8630, 1616-1599 ISBN 0171-8630, 1616-1599 Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 6941
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Author
Title Dietary plasticity in the bivalve Astarte moerchi revealed by a multimarker study in two Arctic fjords Type Journal
Year 2017 Publication Marine Ecology Progress Series Abbreviated Journal
Volume 567 Issue Pages 157-172
Keywords Arctic benthos Climate change Compound-specific carbon stable isotopes Fatty acids Filter-feeding bivalves Pelagic-benthic coupling Trophic markers
Abstract Arctic coastal ecosystems are likely to be strongly affected by predicted environmental changes such as sea-ice decline and increase in freshwater input and turbidity. These changes are expected to impact primary production dynamics and consequently benthic consumers. The trophic relationship between primary producers and benthic primary consumers were compared in 2 Arctic fjords with different seasonal ice-cover: Young Sound (NE Greenland, a high-Arctic fjord) and Kongsfjorden (Svalbard Archipelago, a sub-Arctic fjord). For comparison, we selected the filter-feeding bivalve Astarte moerchi (belonging to the complex A. borealis), which has a broad geographical distribution in the Arctic. The bivalve digestive glands and food sources were characterized with fatty acids (FAs), bulk stable isotopes, and compound-specific stable isotopes of individual FAs. Our results suggest that diatoms of pelagic and/or benthic origin are the main contributors to the A. moerchi diet in Young Sound and make up a less important fraction of the diet in the Kongsfjorden population. A contribution by sympagic diatoms is clearly excluded in the sub-Arctic fjord and needs to be further assessed in the Arctic fjord. The A. moerchi diet in sub-Arctic Kongsfjorden is more diversified, varies with season, and has contributions from dinoflagellates and macroalgal detritus. These results, together with higher concentrations of total FAs in the Young Sound population, demonstrated and characterized the trophic plasticity of this bivalve species. Based on these results, we discuss potential effects of environmental factors (shifts in trophic resources, increase in turbidity) for A. moerchi populations in changing Arctic ecosystems.
Programme 1092
Campaign
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0171-8630, 1616-1599 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 8226
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Author
Title Feeding ecology, isotopic niche, and ingestion of fishery-related items of the wandering albatross Diomedea exulans at Kerguelen and Crozet Islands Type Journal
Year 2017 Publication Marine Ecology Progress Series Abbreviated Journal
Volume 565 Issue Pages 197-215
Keywords Cephalopod Diet Hook Satellite tracking Seabird Southern Ocean Stable isotopes
Abstract Feeding ecology and isotopic niche of the wandering albatross Diomedea exulans were investigated in the poorly studied population on the Kerguelen Islands and compared to that on the Crozet Islands. Fish (48% by mass) and cephalopods (46%) were similarly important in chick food at Kerguelen, while cephalopods (87%) dominated the diet at Crozet. Fish prey included mainly deep-sea species, with the Patagonian toothfish Dissostichus eleginoides being the main item. Cephalopod beaks were identified, most of which were from adult oceanic squids. Albatrosses preyed upon the same taxa at both localities, but in different proportions. Histioteuthis atlantica (30% by number), Galiteuthis glacialis (13%), and Kondakovia longimana (10%) were the main squid prey at Kerguelen, while K. longimana (35%) and H. eltaninae (23%) dominated at Crozet. Chick feather ?15N values were higher in wandering albatrosses than in other oceanic seabirds of the 2 communities, indicating that the wandering albatross is an apex consumer together with the sperm whale and sleeper shark that have similar ?15N values. Satellite-tracked wandering albatrosses foraged in local subantarctic waters and farther north, with some Crozet birds overlapping with those from the Kerguelen population in western Kerguelen waters. Anthropogenic items (e.g. plastic fragments, hooks) were found in half the food samples. All fishery-related items were from the local toothfish fishery. The high number of hooks from Crozet indicated the presence of a fairly large number of illegal longliners in the area during the Austral winter 1998. A review of the feeding habits of Diomedea spp. highlights the need for more dietary investigations to achieve effective conservation and management of this endangered group of charismatic seabirds.
Programme 109
Campaign
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0171-8630, 1616-1599 ISBN 0171-8630, 1616-1599 Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 6635
Permanent link to this record
 
 
Author
Title Feeding ecology, isotopic niche, and ingestion of fishery-related items of the wandering albatross Diomedea exulans at Kerguelen and Crozet Islands Type Journal
Year 2017 Publication Marine Ecology Progress Series Abbreviated Journal
Volume 565 Issue Pages 197-215
Keywords Cephalopod Diet Hook Satellite tracking Seabird Southern Ocean Stable isotopes
Abstract Feeding ecology and isotopic niche of the wandering albatross Diomedea exulans were investigated in the poorly studied population on the Kerguelen Islands and compared to that on the Crozet Islands. Fish (48% by mass) and cephalopods (46%) were similarly important in chick food at Kerguelen, while cephalopods (87%) dominated the diet at Crozet. Fish prey included mainly deep-sea species, with the Patagonian toothfish Dissostichus eleginoides being the main item. Cephalopod beaks were identified, most of which were from adult oceanic squids. Albatrosses preyed upon the same taxa at both localities, but in different proportions. Histioteuthis atlantica (30% by number), Galiteuthis glacialis (13%), and Kondakovia longimana (10%) were the main squid prey at Kerguelen, while K. longimana (35%) and H. eltaninae (23%) dominated at Crozet. Chick feather ?15N values were higher in wandering albatrosses than in other oceanic seabirds of the 2 communities, indicating that the wandering albatross is an apex consumer together with the sperm whale and sleeper shark that have similar ?15N values. Satellite-tracked wandering albatrosses foraged in local subantarctic waters and farther north, with some Crozet birds overlapping with those from the Kerguelen population in western Kerguelen waters. Anthropogenic items (e.g. plastic fragments, hooks) were found in half the food samples. All fishery-related items were from the local toothfish fishery. The high number of hooks from Crozet indicated the presence of a fairly large number of illegal longliners in the area during the Austral winter 1998. A review of the feeding habits of Diomedea spp. highlights the need for more dietary investigations to achieve effective conservation and management of this endangered group of charismatic seabirds.
Programme 109
Campaign
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0171-8630, 1616-1599 ISBN 0171-8630, 1616-1599 Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 7153
Permanent link to this record
 
 
Author Vacquié-Garcia Jade, Guinet Christophe, Dragon Anne-Cécile, Viviant Morgane, El Ksabi Nory, Bailleul Frédéric
Title Predicting prey capture rates of southern elephant seals from track and dive parameters Type Journal Article
Year 2015 Publication Marine Ecology Progress Series Abbreviated Journal Mar. Ecol. Prog. Ser.
Volume 541 Issue Pages
Keywords
Abstract In the marine environment, track and dive parameter data (obtained using Argos or GPS tags and time?depth recorders) are commonly used to provide proxies for foraging behaviour of marine predators. However, their accuracy is rarely assessed. Recently, the addition of head-mounted accelerometers has allowed for detection of prey capture attempts (PCAs) at sea, allowing for more accurate estimations of foraging behaviour. Despite increased numbers of such devices being deployed, their use is still marginal compared with other tools which measure track and dive parameters. The objectives of our study were (1) to identify the most relevant combination of tracking and diving metrics in predicting the frequency of PCAs in female southern elephant seals <i>Mirounga leonina</i> from the Kerguelen Islands, and (2) to apply it to a broader range of individuals for which only tracking and diving data were available. The results of our models were consistent with the optimal foraging theory as well as the optimal diving theory. The model with the best predictive performance was the one that combined both tracking and diving information. However, most of the variability in the number of PCAs could be solely explained by changes in the diving behaviour of seals. Finally, we used the best predictive model on 20 individuals, which had not been fitted with accelerometers, to determine their main foraging zones. The behavioural indicators established in this study constitute a useful ecological tool for population monitoring and conservation purposes.
Programme 109
Campaign
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0171-8630 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 6310
Permanent link to this record
 
 
Author
Title Predicting prey capture rates of southern elephant seals from track and dive parameters Type Journal
Year 2017 Publication Marine Ecology Progress Series Abbreviated Journal
Volume 541 Issue Pages 265-277
Keywords Biologging Dive parameters Foraging Marine predator Prey capture events Southern elephant seals Track parameters
Abstract
Programme 109
Campaign
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0171-8630, 1616-1599 ISBN 0171-8630, 1616-1599 Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 6665
Permanent link to this record
 
 
Author Weimerskirch H, Tarroux A, Chastel O, Delord K, Cherel Y, Descamps S,
Title Population-specific wintering distributions of adult south polar skuas over three oceans Type Journal Article
Year 2015 Publication Mar Ecol Prog Ser Abbreviated Journal
Volume 538 Issue Pages 229-237
Keywords
Abstract
Programme 109
Campaign
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0171-8630 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 6173
Permanent link to this record
 
 
Author Guerreiro M, Phillips RA, Cherel Y, Ceia FR, Alvito P, Rosa R, Xavier JC,
Title Habitat and trophic ecology of Southern Ocean cephalopods from stable isotope analyses Type Journal Article
Year 2015 Publication Mar Ecol Prog Ser Abbreviated Journal Mar. Ecol. Prog. Ser.
Volume 530 Issue Pages 119-134
Keywords
Abstract
Programme 109
Campaign
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0171-8630 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 6168
Permanent link to this record