| Records |
| Author |
Gastebois C, Viviant M, Guinet C, |
| Title |
Ontogeny of aquatic behaviours in Antarctic fur seal (Arctocephalus gazella) pups in relation to growth performances at Kerguelen Islands
|
Type |
Journal Article |
| Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal  |
Polar Biol. |
| Volume |
34 |
Issue |
7 |
Pages |
1097-1103 |
| Keywords |
Biomedical and Life Sciences, |
| Abstract |
In diving marine predators, such as pinnipeds, the development of diving and foraging skills prior to weaning might be critical to post-weaning survival. Here, we examined the effect of pup mass growth on the amount of time devoted to aquatic activities and the dive performance of Antarctic fur seal, Arctocephalus gazella , pups on Kerguelen Island. Maternal attendance and mass-specific growth rate were assessed for 85 pups. Two types of monitoring were applied: visual observations of behaviours for 60 pups and the deployment of time-depth recorders (TDRs) on 19 female pups. At approximately 2 months of age, pups demonstrated minimal diving behaviour, but displayed considerable aquatic activity. While mothers were foraging at sea, pups fasted on land (6.0 ± 1.3 d). As the mass-specific growth rate was different between sexes, only data on female pups were analysed ( n = 31). Mass-specific growth rate was related to maternal attendance patterns and impacted the amount of time allocated by pups to aquatic activities. The time spent in the water by pups was quadratically related to fasting progress. This study shows the importance of growth and fasting progress on the quantity of time pups devoted to aquatic activities. Our results suggest that greater post-weaning survival of heavier pups may be due not only to their greater body reserves, as reported in several studies, but also possibly to from their greater aquatic skills and physiological adaptations developed during the suckling period. |
| Programme |
109 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
| Publisher |
Springer Berlin / Heidelberg |
Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0722-4060 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
3256 |
| Permanent link to this record |
| |
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| |
| Author |
Angelier Frédéric, Weimerskirch Henri, Chastel Olivier, |
| Title |
Capture and blood sampling do not affect foraging behaviour, breeding success and return rate of a large seabird: the black-browed albatross |
Type |
Journal Article |
| Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
| Volume |
34 |
Issue |
3 |
Pages |
353-361 |
| Keywords |
Biomedical and Life Sciences, |
| Abstract |
During the last decades, eco-physiological studies have usually relied on the collection of blood from wild organisms in order to obtain relevant physiological measures. However, accurate estimates of the impact of capture and blood collection on performances of Polar seabird species have rarely been conducted. We investigated for the first time the effects of a blood sampling process on subsequent foraging behaviour, reproductive performance and return rate of black-browed albatrosses ( Thalassarche melanophris ) at Kerguelen Islands. We did not find any evidence that the blood sampling process as conducted in our study had detrimental effects on the breeding or foraging strategies or performance of black-browed albatrosses. Because blood collection can be performed in several different ways, we recommend that eco-physiologists conduct pilot studies to test whether their blood sampling process affects the performances of their study species. |
| Programme |
109 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Springer Berlin / Heidelberg |
Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0722-4060 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
3425 |
| Permanent link to this record |
| |
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| |
| Author |
Mosbech Anders, Johansen Kasper, Bech Nikolaj, Lyngs Peter, Harding Ann, Egevang Carsten, Phillips Richard, Fort Jerome, |
| Title |
Inter-breeding movements of little auks Alle alle reveal a key post-breeding staging area in the Greenland Sea
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Type |
Journal Article |
| Year |
2012 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
| Volume |
35 |
Issue |
2 |
Pages |
305-311 |
| Keywords |
Biomedical and Life Sciences, |
| Abstract |
Seabirds are important components in marine ecosystems. However, knowledge of their ecology and spatial distribution during the non-breeding season is poor. More investigations during this critical period are required urgently, as marine environments are expected to be profoundly affected by climate change and human activities, with both direct and indirect consequences for marine top predators. Here, we studied the distribution of little auks ( Alle alle ), one of the most abundant seabird species worldwide. We found that after the breeding season, birds from East Greenland quickly travelled north-east to stay for several weeks within a restricted area in the Greenland Sea. Activity patterns indicated that flying behaviour was much reduced during this period, suggesting that this is the primary moulting region for little auks. Birds then performed a southerly migration to overwinter off Newfoundland. These preliminary results provide important information for the conservation of this species and emphasise the need for further studies at a larger spatial scale. |
| Programme |
388 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
| Publisher |
Springer Berlin / Heidelberg |
Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0722-4060 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
3513 |
| Permanent link to this record |
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| |
| Author |
Eléaume Marc, Hemery Lenaïg, Bowden David, Roux Michel, |
| Title |
A large new species of the genus Ptilocrinus (Echinodermata, Crinoidea, Hyocrinidae) from Antarctic seamounts
|
Type |
Journal Article |
| Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
| Volume |
34 |
Issue |
9 |
Pages |
1385-1397 |
| Keywords |
Biomedical and Life Sciences, |
| Abstract |
Ptilocrinus amezianeae n. sp. is a new species of stalked crinoid attributed to the family Hyocrinidae. Forty-five specimens were collected from seamounts north of the Ross Sea, and one specimen from the Kerguelen Plateau at depths ranging from 450 to 1,680 m. The collection from Admiralty and Scott seamounts constitutes the first example of a hyocrinid population known both from in situ photographs and from numerous collected specimens ranging from small juvenile to large adult. Variation in theca and stalk articulation characters throughout ontogeny is congruent with the molecular data and indicates that all the specimens examined belong to a single species. Tegmen and pinnule architecture, brachial arrangement, and stalk articular facets indicate that Ptilocrinus amezianeae n. sp. has close affinities with P. clarki and P. pinnatus from the northeastern Pacific and displays the most derived characters among these three species. Two cases of true arm division into two unequal branches suggest that Ptilocrinus and Calamocrinus are closely related. The picture and video transects on Admiralty seamount show a patchy distribution of living specimens with patches of mean density ca. 2.6 individuals m-2. In situ photographs also document predation by a sea urchin and a sea star on tegmen and proximal arms. The COI gene sequences analyzed in 25 specimens from Admiralty and Scott seamounts display low pairwise distances, low nucleotidic diversity, and intermediate haplotype diversity. These results, together with disarticulated ossicles and attachment disks observed on in situ photographs, indicate that the population investigated here is in decline. |
| Programme |
1124 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Springer Berlin / Heidelberg |
Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0722-4060 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
|
Serial |
3719 |
| Permanent link to this record |
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| |
| Author |
Lecointre Guillaume, Gallut Cyril, Bonillo Céline, Couloux Arnaud, Ozouf-Costaz Catherine, Dettaï Agnès, |
| Title |
The Antarctic fish genus Artedidraco is paraphyletic (Teleostei, Notothenioidei, Artedidraconidae)
|
Type |
Journal Article |
| Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
| Volume |
34 |
Issue |
8 |
Pages |
1135-1145 |
| Keywords |
Biomedical and Life Sciences, |
| Abstract |
Artedidraconids (Plunderfishes) are small benthic notothenioid fishes of the Antarctic and South Georgia shelf and slope. The family Artedidraconidae is monophyletic; however, the relationships within the family have remained poorly explored until now, and based on a small sample of the genus Artedidraco . The present study focuses on the interrelationships among the artedidraconid genera and the phylogeny of the genus Artedidraco . 2,353 base pairs from 77 specimens were sequenced from the partial mitochondrial cytochrome oxidase I gene and cytochrome b gene, the partial mitochondrial control region and the partial nuclear rhodopsin retrogene. The genus Artedidraco is not monophyletic, confirming the preliminary relationships found by Derome et al. (Mol Phylogenet Evol 24:139152, 2002 ): Pogonophryne , Dolloidraco and Histiodraco are well embedded within the genus Artedidraco . From Artedidraco skottsbergi and A. loennbergi to A. orianae and A. mirus , the tree shows that there is an increasing number of upper lateral line tubular scales and decreasing number of disc-shaped scales. There is also a trend toward a decrease in the number of epipleural ribs and an increase in number of pleural ribs along the tree. |
| Programme |
1124 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Springer Berlin / Heidelberg |
Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0722-4060 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
|
Serial |
1323 |
| Permanent link to this record |
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| Author |
Ledoux J-B, Tarnowska K, Gérard K, Lhuillier E, Jacquemin B, Weydmann A, Féral J-P, Chenuil A, |
| Title |
Fine-scale spatial genetic structure in the brooding sea urchin Abatus cordatus suggests vulnerability of the Southern Ocean marine invertebrates facing global change
|
Type |
Journal Article |
| Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
| Volume |
|
Issue |
|
Pages |
1-13 |
| Keywords |
Biomedical and Life Sciences, |
| Abstract |
The Southern Ocean benthic communities are characterized by their levels of endemism and their diversity of invertebrate brooding species. Overall, biological processes acting within these species remain poorly understood despite their importance to understand impacts of ongoing global change. We take part in filling this gap by studying the genetic structure over different spatial scales (from centimeters to tens of kilometers) in Abatus cordatus , an endemic and brooding sea urchin from the Kerguelen Islands. We developed three microsatellites and two exon-primed intron crossing markers and conducted a two-scale sampling scheme (from individuals to patches) within two dense localities of Abatus cordatus . Between patches, all pairwise comparisons, covering distances from few meters (between patches within locality) to 25 km (between localities), revealed significant genetic differentiation, a higher proportion of the molecular variance being explained by the comparisons between localities than within localities, in agreement with an isolation by distance model. Within patches, we found no significant correlation between individual pairwise spatial and genetic distances, except for the most polymorphic locus in the patch where the largest range of geographical distances had been analyzed. This study provides an estimation of the dispersal capacities of Abatus cordatus and highlights its low recolonization ability. Similar low recolonization capacities are thus expected in other Antarctic and Subantarctic brooding invertebrate species and suggest a high vulnerability of these species facing global change. |
| Programme |
1124 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Springer Berlin / Heidelberg |
Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0722-4060 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
3727 |
| Permanent link to this record |
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| Author |
Fonteneau Frédéric, Geiger Sylvie, Marion Loïc, Le Maho Yvon, Robin Jean-Patrice, Kinsella John, |
| Title |
Gastrointestinal helminths of King penguins (Aptenodytes patagonicus) at Crozet Archipelago
|
Type |
Journal Article |
| Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
| Volume |
34 |
Issue |
8 |
Pages |
1249-1252 |
| Keywords |
Biomedical and Life Sciences, |
| Abstract |
Communities of helminths are known to be related to feeding behaviors of hosts. While climate change and overfishing can impact food availability for Antarctic piscivorous predators, knowledge about infectious and parasitic diseases among Antarctic species is scarce or fragmentary. We studied the helminth community of King penguins ( Aptenodytes patagonicus ) from the Crozet Archipelago, the main breeding area of the species. Based on a sample of 41 individuals found freshly dead from predation or starvation, the gastrointestinal helminth community in King penguins was composed of 1 species of cestode ( Tetrabothrius wrighti ) and 2 species of nematodes ( Tetrameres wetzeli and Contracaecum heardi ). Cestodes formed the core of the helminth community (97.5% of worms collected) with a prevalence of infestation of 100% and a mean intensity of 178.6 worms per host. Sources of infestation and pathologies caused by these worms are also discussed. |
| Programme |
119 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Springer Berlin / Heidelberg |
Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0722-4060 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
3803 |
| Permanent link to this record |
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| Author |
Eric Tavernier, Patrick Mayzaud, Marc Boutoute, Carole Vallet, Philippe Koubbi, |
| Title |
Lipid characterization of Pleuragramma antarcticum (Nothoteniidae) larvae off East Antarctica (139°E145.10°E) during summer
|
Type |
Journal Article |
| Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
| Volume |
35 |
Issue |
|
Pages |
829-840 |
| Keywords |
|
| Abstract |
Pleuragramma antarcticum (Antarctic silverfish) larvae are a key component of the neritic assemblages in the Antarctic coastal waters and can be considered as an indicator of the future changes that may occur in this area. Lipid class and fatty acid composition was studied to assess the nutritional status and evaluate the type of dominant trophic interactions of P. antarcticum larvae collected between Terre Adélie and the Mertz Glacier Tongue (139°E145.10°E) during summer 2007. P. antarcticum larvae exhibit moderate lipid levels (11.915.0% dry weight). Lipid class analyses showed a similar pattern over the study area consisting mainly of polar lipids (6175% of total lipids). During their first summer, larvae started to accumulate small amount of lipid reserves in the form of triacylglycerols (1016% of total lipids). Polar lipids were dominated by phosphatidylcholine (5559%) followed by phosphatidylethanolamine (1921%). Fatty acid signature of triacylglycerols indicates (1) a dominance of copepod of the Oithona type in the trophic pattern of P. antarcticum larvae and (2) a significant contribution of phytoplankton. In the same way, the analysis of gut content shows that 70% of larvae fed on various assemblages of phytoplankton and zooplankton (mainly copepods) and 30% of larvae fed exclusively on phytoplankton. Although a carnivorous diet is commonly described, our results suggest that P. antarcticum larvae showed an opportunistic feeding strategy (i.e. high degree of omnivory) and that dietary energy seems to be mainly directed towards fast growth rather than energy storage for periods of starvation. |
| Programme |
1142 |
| Campaign |
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| Address |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0722-4060 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
3134 |
| Permanent link to this record |
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| Author |
Smith PJ, Steinke D, Dettai A, McMillan P, Welsford D, Stewart A, Ward RD, |
| Title |
DNA barcodes and species identifications in Ross Sea and Southern Ocean fishes
|
Type |
Journal Article |
| Year |
2012 |
Publication |
POLAR BIOLOGY |
Abbreviated Journal |
Polar Biol. |
| Volume |
35 |
Issue |
9 |
Pages |
1297-1310- |
| Keywords |
DNA barcode, Southern Ocean, Fishes, Species identification, |
| Abstract |
The Southern Ocean occupies about 10 % of the world’s oceans but has low species richness with only ~1.5 % of the marine fishes. Within the Southern Ocean, the Ross Sea region is one of the least exploited sea areas in the world, but is subject to commercial fishing. The fauna are not well known, and preliminary IPY molecular studies have indicated that species diversity has been underestimated in this region. DNA barcodes of fishes from the Ross Sea region were compared with barcodes of fishes from the Atlantic and Indian Ocean sectors of the Southern Ocean. Barcoding resolved 87.5 % of 112 species that typically exhibited high inter-specific divergences. Intra-specific divergence was usually low with shared haplotypes among regions. The Zoarcid Ophthalmolycus amberensis showed shallow divergences (0.1 %) within the Ross Sea and Australian Antarctic Territory but high inter-region divergence (2 %), indicative of cryptic species. Other potential cryptic species with high intra-specific divergences were found in Notolepis coatsi and Gymnoscopelus bolini. In contrast, several taxa showed low inter-specific divergences and shared haplotypes among morphological species. COI provided limited phylogenetic resolution of the genera Pogonophryne and Bathydraco. Trematomus loennbergii and T. lepidorhinus shared COI haplotypes, as previously noted in other regions, as did Cryodraco antarcticus and C. atkinsoni. There was a marked lack of congruence between morphological descriptions and COI divergences among the Ross Sea liparids with shallow or zero divergences among recently described species. Barcodes for the Ross Sea fishes highlighted several initial misidentifications that were corrected when specimens were re-examined. |
| Programme |
1124 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Springer-Verlag |
Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0722-4060 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
4023 |
| Permanent link to this record |
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| Author |
Morata Nathalie, Michaud Emma, |
| Title |
Impact of early food input on the Arctic benthos activities during the polar night
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Type |
Journal Article |
| Year |
2013 |
Publication |
POLAR BIOLOGY |
Abbreviated Journal |
Polar Biol. |
| Volume |
|
Issue |
|
Pages |
1-16 |
| Keywords |
Biogeochemical fluxes, Bioturbation, Ecology, Ecosystem functioning, Feeding experiment, Microbiology, Oceanography, Plant Sciences, Svalbard, Zoology, |
| Abstract |
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| Programme |
1092 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
| Publisher |
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Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0722-4060 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
|
Serial |
4368 |
| Permanent link to this record |
