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Title |
Performance of modern tide gauges: towards mm-level accuracyJF
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Journal Article |
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Year |
2012 |
Publication |
Scientia Marina |
Abbreviated Journal |
Sci. Mar. |
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Keywords |
radar; pressure gauges; sea level changes; sea level measurement; tide gauges; Kerguelen Islands; GPS buoy, |
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Abstract |
Considerable efforts are being made worldwide to upgrade tide gauge networks using new technologies. Because of the unique location of the Kerguelen Islands, the measurement of sea level there has received particular attention, with up to four systems equipped with modern sensors functioning simultaneously (two pressure tide gauges, a radar tide gauge, and a GPS-equipped buoy). We analysed and compared the sea level data obtained with these systems from 2003 to 2010, together with a time series of tide pole observations. This is the first time that a multi-comparison study with tide gauges has been undertaken over such a long time span and that the stability of modern radar tide gauges has been examined. The multi-comparison enabled us to evaluate the performance of the tide gauges in several frequency ranges, identify errors and estimate their magnitude. The drift of the pressure sensors (up to 8.0 mm/yr) was found to be one of the most relevant sources of systematic error. Other sources of difference such as clock drift, scale error and different locations of the instruments were also detected. After correcting the time series of sea level for these errors we estimated an upper bound for the radar instrumental error in field condition at ~0.3 cm.
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688 |
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Bachelor's thesis |
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0214-8358 |
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yes |
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1845 |
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Author |
Lecointre G. |
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Title |
Testing the occurrence of marine benthic species flocks of the Antarctic shelf: a research summary of the French research program ANTFLOCKS. World Conference on Marine Biology, Aberdeen, UK, 26-30 septembre. |
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Conference - International - Communication |
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2011 |
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1124 |
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Bachelor's thesis |
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yes |
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1887 |
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Author |
Authier M. |
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2011 |
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109 |
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Bachelor's thesis |
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yes |
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1893 |
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Author |
Thiebot J.B. |
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2011 |
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109 |
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Bachelor's thesis |
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yes |
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1934 |
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Author |
Peron C. |
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Thesis |
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2011 |
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109 |
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Bachelor's thesis |
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yes |
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1923 |
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Title |
Research priorities for seabirds: improving conservation and management in the 21st century. |
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Journal Article |
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Year |
2012 |
Publication |
ENDANGERED SPECIES RESEARCH |
Abbreviated Journal |
1613-4796 |
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17 |
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Abstract |
Seabirds are facing a growing number of threats in both terrestrial and marine habitats, and many populations have experienced dramatic changes over past decades. Years of seabird research have improved our understanding of seabird populations and provided a broader understanding of marine ecological processes. In an effort to encourage future research and guide seabird conservation science, seabird researchers from 9 nations identified the 20 highest priority research questions and organized these into 6 general categories: (1) population dynamics, (2) spatial ecology, (3) tropho-dynamics, (4) fisheries interactions, (5) response to global change, and (6) management of anthropogenic impacts (focusing on invasive species, contaminants and protected areas). For each category, we provide an assessment of the current approaches, challenges and future directions. While this is not an exhaustive list of all research needed to address the myriad conservation challenges seabirds face, the results of this effort represent an important synthesis of current expert opinion across sub-disciplines within seabird ecology. As this synthesis highlights, research, in conjunction with direct management, education, and community engagement, can play an important role in facilitating the conservation and management of seabird populations and of the ocean ecosystems on which they and we depend. |
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333;388 |
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Bachelor's thesis |
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ISSN |
1613-4796 |
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Approved |
yes |
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Call Number |
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Serial |
2648 |
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Title |
Thermal acclimation capacity for four Arctic marine benthic species
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Type |
Journal Article |
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Year |
2012 |
Publication |
Journal of Experimental Marine Biology and Ecology |
Abbreviated Journal |
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Volume |
424425 |
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Pages |
38-43 |
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Keywords |
Climate change, CTmax, Limit, Polar, Temperature, Warming, |
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Abstract |
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Programme |
1090 |
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Thesis |
Bachelor's thesis |
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ISSN |
0022-0981 |
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Approved |
yes |
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Call Number |
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Serial |
2903 |
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Author |
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Title |
Specific pathways for the incorporation of dissolved barium and molybdenum into the bivalve shell: An isotopic tracer approach in the juvenile Great Scallop (Pecten maximus)
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Type |
Journal Article |
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Year |
2012 |
Publication |
Marine Environmental Research |
Abbreviated Journal |
Mar. Environ. Res. |
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Volume |
78 |
Issue |
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Pages |
15-25 |
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Keywords |
Isotopes, Femtosecond laser ablation, Scallop shell, Barium, Molybdenum, Pecten maximus, Tracers, Biogeochemical cycle, |
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Abstract |
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Programme |
1090 |
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Thesis |
Bachelor's thesis |
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Edition |
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ISSN |
0141-1136 |
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Approved |
yes |
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Call Number |
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Serial |
3020 |
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Author |
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Title |
Comparative phylogeography of three trematomid fishes reveals contrasting genetic structure patterns in benthic and pelagic species
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Type |
Journal Article |
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Year |
2012 |
Publication |
Marine Genomics |
Abbreviated Journal |
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Volume |
8 |
Issue |
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Pages |
23-34 |
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Keywords |
Microsatellite markers, Mitochondrial, Larval duration, Glaciations, Notothenioidei, Life history, |
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Abstract |
Population genetics patterns of marine fish in general and of Southern Ocean fish in particular range from virtual panmixia over ocean-wide scale to deeply fragmented populations. However the causes underlying these different patterns are not properly understood. In this paper, we tested the hypotheses that population connectivity is positively related to a combination of life history traits, namely duration of pelagic larval period and the tendency towards pelagic life style in the adulthood. To do so, we analysed the variability of six microsatellite and one mitochondrial marker (cytochrome b) in three Southern Ocean fish species (Trematomus newnesi, Trematomus hansoni and Trematomus bernacchii). They share a recent common ancestor but notably differ in their duration of pelagic larval period as well as pelagic versus benthic lifestyle. We sampled over a range of more than 5000 km for all three species and used a number of population genetics tools to investigate past and contemporary levels of connectivity. All species experienced population fluctuations, but coalescent simulations suggested that contemporary populations are in migration-drift equilibrium. Although global FST values were rather low, a significant population structure separated the High-Antarctic from the Peninsular regions in all species. The level of genetic differentiation was much lower in the pelagic versus benthic species. Present data suggest that past and present genetic structuring in the Southern Ocean are indeed related with the ecological traits of Antarctic fish, however the relative importance of individual factors remains unclear. |
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Programme |
1142 |
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Bachelor's thesis |
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ISSN |
1874-7787 |
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Approved |
yes |
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Call Number |
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Serial |
3167 |
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Author |
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Title |
Measurement of the 17O-excess (17O) of tropospheric ozone using a nitrite-coated filter
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Type |
Journal Article |
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Year |
2012 |
Publication |
Rapid Communications in Mass Spectrometry |
Abbreviated Journal |
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Volume |
26 |
Issue |
10 |
Pages |
1219-1231 |
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Keywords |
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Abstract |
RATIONALE |
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Programme |
1011 |
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Bachelor's thesis |
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Publisher |
John Wiley & Sons, Ltd |
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Edition |
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ISSN |
1097-0231 |
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yes |
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Call Number |
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Serial |
3613 |
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