King penguins as indicators of climatic impact on Southern Indian ocean food websEntry ID: 394_0_IPEV_FR
Abstract: The objective is to study how some diving predators (penguins) may be used to assess the effects of the climatic variability at short and long term, on the pelagic food webs of the Southern Indian Ocean. The study is based on the deployment of data loggers (depth, sea water temperature, Argos transmitters or GPS) on breeding King penguins leaving the colony to forage at-sea. The database concerns ... 2 localities of the South Indian Ocean: Crozet and Kerguelen. The data have been obtained since 1992 at Crozet (17 years of quasi-continuous monitoring, except 1995 and 1999) and at Kerguelen since 1998, (11 years of data, continuous monitoring). Bio-logging data of at-sea trajectories, diving records, and in situ temperature profiles acquired each year on penguins are analysed along with remote-sensing data of sea surface temperature, sea-surface height anomalies, and primary production.
We have demonstrated a close link between the inter-year change in mesoscale frontal structure of the Indian Ocean (the Polar Front) and the King penguins foraging range and preferential depth. Our aim now is to determine what are the foraging responses in different modelized foraging habitats in relation to long-term climate changes.
Start Date: 1992-12-20Stop Date: 2009-03-20
Latitude Resolution: 10km
Longitude Resolution: 10 km
Horizontal Resolution Range: 10 km - < 50 km or approximately .09 degree - < .5 degree
Vertical Resolution: 4m
Vertical Resolution Range: 1 meter - < 10 meters
Temporal Resolution: semaine
Temporal Resolution Range: 1 second - < 1 minute
AGRICULTURE > ANIMAL SCIENCE > ANIMAL ECOLOGY AND BEHAVIOR
OCEANS > MARINE ENVIRONMENT MONITORING
BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS > PENGUINS
BIOSPHERE > AQUATIC ECOSYSTEMS > PELAGIC HABITAT
BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > USE/FEEDING HABITATS
Access Constraints Please contact investigator(s).
Use Constraints The whole database cannot be used before its publication in scientific journals.
Role: DIF AUTHOR
Role: TECHNICAL CONTACT
Email: bost at cebc.cnrs.fr
City: Villiers en Bois
Postal Code: 79360
Role: TECHNICAL CONTACT
Email: charrassin at mnhn.fr
Departement Milieux et Peuplements Aquatiques MNHN 55 rue Cuvier
Postal Code: 75005
Charrassin J.B., Park, Y.H., Le Maho , Y., Bost, C.A. (2004). Fine resolution 3-D temperature fields off Kerguelen from instrumented penguins. Deep Sea Research I 51 : 2091-2103.
Charrassin, J.B., Park, Y.H., Le Maho, Y. & Bost, C.A. (2002) Penguins as oceanographers unravel hidden mechanisms of marine productivity. Ecology Letter 5: 1-13.
Creation and Review Dates
DIF Creation Date: 2009-11-11
Last DIF Revision Date: 2012-01-25