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Author |
Gilles Durand, Mauro Dolci, Giuliano Nucciarelli, Lucia Sabbatini |
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Title |
Progress report : Coordination of IRAIT based activity for campaigns 2009/2012 Teramo 09&10 September 2009 |
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2006 |
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This reports the first coordination meeting of the IRAIT based experiments.
Goal : temptative view of the programs at 3 year distance, in order to coordinate the activities of Agencies and institutes.
Detailed activity and requirements for agencies for the two next summer campaigns.
The defrosting of telescopes were discussed including COCHISE and IRAIT
The Future astrophysic shelter was discussed
The cooling system and power requirements were discussed. |
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1040 |
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yes |
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6047 |
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Author |
Tremblin P, Schneider N, Minier V, Durand G Al, Urban J, |
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Title |
Worldwide site comparison for submillimetre astronomy
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Journal Article |
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Year |
2012 |
Publication |
A&A |
Abbreviated Journal |
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Volume |
548 |
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Keywords |
Astrophysics – Instrumentation and Methods for Astrophysics, |
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Abstract |
The most important limitation for ground-based submillimetre (submm) astronomy is the broad-band absorption of the total water vapour in the atmosphere above an observation site, often expressed as the Precipitable Water Vapour (PWV). A long-term statistic on the PWV is thus mandatory to characterize the quality of an existing or potential site for observational submm-astronomy. In this study we present a three-year statistic (2008-2010) of the PWV for ground-based telescope sites all around the world and for stratospheric altitudes relevant for SOFIA (Stratospheric Observatory for Far-infrared astronomy). The submm-transmission is calculated for typical PWVs using an atmospheric model. We present the absolute PWV values for each site sorted by year and time percentage. The PWV corresponding to the first decile (10%) and the quartiles (25%, 50%, 75%) are calculated and transmission curves between 150 {\mu}m and 3 mm for these values are shown. The Antarctic and South-American sites present very good conditions for submillimetre astronomy. The 350 {\mu}m and 450 {\mu}m atmospheric windows are open all year long whereas the 200 {\mu}m atmospheric window opens reasonably for 25 % of the time in Antarctica and the extremely high-altitude sites in Chile. Potential interesting new facilities are Macon in Argentinia and Summit in Greenland that show similar conditions as for example Mauna Kea (Hawaii). For SOFIA, we present in more detail transmission curves for different altitudes (11 to 14 km), PWV values, and higher frequencies (up to 5 THz). Though the atmosphere at these altitude is generally very transparent, the absorption at very high frequencies becomes more important, partly caused by minor species. In conclusion, the method presented in this paper could identify sites on Earth with a great potential for submillimetre astronomy, and guide future site testing campaigns in situ. |
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1040 |
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yes |
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4645 |
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Author |
Lecomte F., Beall G., and Gaudin P. |
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Title |
Bilan des introductions de salmonidés aux îles Kerguelen et état actuel des colonisations des rivières sur l’archipel. |
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2010 |
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L'ensemble de ces documents est pour le moment confidentiel, à disposition de l'IPEV, et fait actuellement l'objet d'un travail de publication qui sera vraisemblablement proposé à Polar Biology. |
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1041 |
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yes |
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2662 |
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Author |
Chat Joëlle, Manicki Aurélie, |
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Title |
A SNP-based assay in a non model species: evolutionary lineage assignment of brown trout ancient DNA
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Journal Article |
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Year |
2012 |
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Abbreviated Journal |
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Volume |
4 |
Issue |
1 |
Pages |
59-62- |
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Keywords |
Ancient DNA, Evolutionary lineage, Homoplasy, Mitochondrial DNA, Multiplex primer extension, SNaPshot, |
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1041 |
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Springer Netherlands |
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1877-7252 |
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yes |
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4655 |
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Author |
Hórreo Jose L, Ayllón Fernando, Perez Juliana, Beall Edward, Garcia-Vazquez Eva, |
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Title |
Interspecific Hybridization, a Matter of Pioneering? Insights from Atlantic Salmon and Brown Trout
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Journal Article |
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Year |
2011 |
Publication |
Journal of Heredity |
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Volume |
102 |
Issue |
2 |
Pages |
237 -242 |
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Programme |
1041 |
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yes |
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4617 |
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Author |
Jaffal A, Givaudan N, Betoulle S, Terreau A, Paris-Palacios S, Biagianti-Risbourg S, Beall E, Roche H, |
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Title |
Polychlorinated biphenyls in freshwater salmonids from the Kerguelen Islands in the Southern Ocean.
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Journal Article |
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Year |
2011 |
Publication |
Environmental pollution (Barking, Essex : 1987) |
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Volume |
159 |
Issue |
5 |
Pages |
1381-9 |
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Keywords |
Animals, Biometry, Environmental Monitoring, Female, Indian Ocean Islands, Lipid Metabolism, Male, Muscle, Skeletal, Muscle, Skeletal: chemistry, Polychlorinated Biphenyls, Polychlorinated Biphenyls: analysis, Sex Factors, Species Specificity, Trout, Trout: metabolism, Water Pollutants, Chemical, Water Pollutants, Chemical: analysis, |
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Abstract |
The Subantarctic Kerguelen Islands (49°S, 70°E) contain freshwater ecosystems among the most isolated in the world. Concentrations of polychlorinated biphenyls (PCBs) were assessed in the muscle of 48 brook trout and 38 brown trout caught during summer and spring 2006 in the rivers, lakes and ponds of Kerguelen. The sum of 29 PCBs averaged 404 and 358 ng g(-1) lipid, and dioxin-like PCB was 19 and 69 ng g(-1) lipid, in brook and brown trout, respectively. The values showed a high variability and some fish accumulated PCBs at levels similar to those of fish from impacted areas. While inter-sex differences were limited, the season and the morphotype appeared to have the most influence. Fish captured in summer had muscle PCB concentrations about three times higher than those caught in spring and the 'river' morphotype of brook trout showed the highest PCB levels.
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1041 |
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yes |
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Serial |
4621 |
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Author |
Labonne Jacques, Vignon Matthias, Prévost Etienne, Lecomte Frédéric, Dodson Julian J, Kaeuffer Renaud, Aymes Jean-Christophe, Jarry Marc, Gaudin Philippe, Davaine Patrick, Beall Edward, |
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Title |
Invasion Dynamics of a Fish-Free Landscape by Brown Trout (Salmo trutta) |
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Journal |
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2013 |
Publication |
PLoS ONE |
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Volume |
8 |
Issue |
8 |
Pages |
e71052- |
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Abstract |
Metapopulation dynamics over the course of an invasion are usually difficult to grasp because they require large and reliable data collection, often unavailable. The invasion of the fish-free freshwater ecosystems of the remote sub-Antarctic Kerguelen Islands following man-made introductions of brown trout (Salmo trutta) in the 1950's is an exception to this rule. Benefiting from a full long term environmental research monitoring of the invasion, we built a Bayesian dynamic metapopulation model to analyze the invasion dynamics of 85 river systems over 51 years. The model accounted for patch size (river length and connections to lakes), alternative dispersal pathways between rivers, temporal trends in dynamics, and uncertainty in colonization date. The results show that the model correctly represents the observed pattern of invasion, especially if we assume a coastal dispersal pathway between patches. Landscape attributes such as patch size influenced the colonization function, but had no effect on propagule pressure. Independently from patch size and distance between patches, propagule pressure and colonization function were not constant through time. Propagule pressure increased over the course of colonization, whereas the colonization function decreased, conditional on propagule pressure. The resulting pattern of this antagonistic interplay is an initial rapid invasion phase followed by a strong decrease in the invasion rate. These temporal trends may be due to either adaptive processes or environmental gradients encountered along the colonization front. It was not possible to distinguish these two hypotheses. Because invasibility of Kerguelen Is. freshwater ecosystems is very high due to the lack of a pre-existing fish fauna and minimal human interference, our estimates of invasion dynamics represent a blueprint for the potential of brown trout invasiveness in pristine environments. Our conclusions shed light on the future of polar regions where, because of climate change, fish-free ecosystems become increasingly accessible to invasion by fish species. |
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Programme |
1041 |
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Thesis |
Bachelor's thesis |
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Publisher |
Public Library of Science |
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1932-6203 |
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yes |
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4781 |
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Author |
Lecomte Frédéric, Beall Edward, Chat Joëlle, Davaine Patrick, Gaudin Philippe, |
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Title |
The complete history of salmonid introductions in the Kerguelen Islands, Southern Ocean
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Journal Article |
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2013 |
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36 |
Issue |
4 |
Pages |
457-475- |
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Keywords |
Introductions, Colonization, Salmo, Oncorhynchus, Salvelinus, Kerguelen Islands, |
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1041 |
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Springer-Verlag |
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0722-4060 |
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yes |
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4782 |
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Labonne J., Aymes J.C., Beall E., Chat J., Dopico-Rodriguez E.D., Garcia-Vazquez E., Gaudin P., Guéraud F., Hendry A.P., Horreo-Escandon J.L., Huteau D., Jarry M., Kaeuffer R., Lecomte F., Manicki A., Rives J., Roussel J.M., Tremblay J., Vignon M., Zhou M. |
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Title |
Ecologie évolutive de la colonisation des Iles Kerguelen par les salmonidés. Rapport de fin de programme IPEV SALMEVOL-1041, 77p. + annexes. |
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Report |
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Year |
2013 |
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Abbreviated Journal |
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1041 |
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yes |
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4787 |
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Author |
Aymes JC, Vignon M, Beall E, Guéraud F, Gaudin P, |
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Title |
Age validation of the Kerguelen Islands brown trout, Salmo trutta L., and selection of the otolith optimal zone for investigating chronological data series
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Journal Article |
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Year |
2016 |
Publication |
Fisheries Research |
Abbreviated Journal |
J. Fish Biol. |
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Volume |
176 |
Issue |
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Pages |
22-29 |
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Keywords |
Age estimation, Annuli, Chronological series, Index, Marking, Salmonidae, |
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Abstract |
The selection of an otolith optimal zone where to obtain interpretable chronological data (e.g. chemical transect, increment width) and valid age estimation is fundamental if otoliths are to be used as an effective tool for investigating life history traits or environments experienced by fish. In the remote sub-Antarctic Kerguelen Islands (49° S, 70° E), introduced brown trout populations are invading the archipelago since the 50's and life histories information is of great interest to understand the invasion dynamics. Unfortunately, few studies have used otolith as a tool to estimate brown trout age at these extreme latitudes and little is known about otolith growth and annulus formation in these sub-polar conditions. Furthermore, no formal procedure exists at the population level to select an otolith optimal zone where to concomitantly extract chronological data aiming at investigating life history traits and growth chronologies. In this context, the aims of this study were (1) to validate the otolith age estimation method by the determination of the position of the first annulus and the annual formation of subsequent annuli; (2) to define an optimal zone where chronological data could be coupled to age estimates. A brown trout population located near the Port-au-Français station was studied and sampled repeatedly using mark-recapture method and Alizarin Red S marking. After to 2 years of recaptures 53 sagittae were analysed. A composite index was created to select an optimal zone where chronological data transects have the maximum probabilities to cross readable annuli. Results showed that brown trout forms annuli at the end of September, starting with the first winter after the December hatching. Annulus formation up to 2 years after marking was validated. The area between 80° and 120° perpendicular to the rostrum/core axis was optimal for the positioning of data transect. The proposed formal approach allows distinguishing the zone that identifies the best compromise between spatial resolution and precise annulus positioning along otolith chronological series.
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0022-1112 |
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yes |
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Call Number |
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5710 |
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