Linking climate to population variability in marine ecosystems characterized by non-simple dynamics: Conceptual templates and schematic constructs GRISET Sara PASSUNI Giannina POUGET Lydie UE 227 « Fluctuations et perturbations, naturelles et anthropiques des écosystèmes marins » Andrew Bakun, (2010) Journal of Marine Systems 79 361–373 Master 1 Biologie et Ecologie marine 2011
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Linking climate to population variability in marine ecosystems characterized by non-simple dynamics: Conceptual templates and schematic constructs GRISET.
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Linking climate to population variability in marine ecosystems characterized by non-simple dynamics: Conceptual templates and schematic constructs
GRISET SaraPASSUNI GianninaPOUGET Lydie
UE 227 « Fluctuations et perturbations, naturelles et anthropiques des écosystèmes marins »
Andrew Bakun, (2010) Journal of Marine Systems 79 361–373
Concentrations de chlorophylle des eaux de surface au niveau des côtes chiliennes et péruviennes , estimées au SeaWIFS en Mars 2001
D’après Hormazabal et al., 2004. Gayana 68:291-296
2. Concepts2.4 Formation des tourbillons
Fortes concentrations de chlorophylle
Formation des tourbillons
10
THERMOCLINE
SURFACE OCEANIQUE
Forçage climatique: Formation des tourbillons cycloniques
D’après Bakun, 2010 Journal of marine systems 79:361-373
2. Concepts2.4 Formation des tourbillons
Transport d’Ekman
DIVERGENCE
11
THERMOCLINE
UPWELLING
SURFACE OCEANIQUE CYCLONIC EDDY
Forçage climatique: Formation des tourbillons cycloniques
D’après Bakun, 2010 Journal of marine systems 79:361-373
2. Concepts2.4 Formation des tourbillons
12
THERMOCLINE
SURFACE OCEANIQUE
Forçage climatique: Formation des tourbillons anticycloniques
D’après Bakun, 2010 Journal of marine systems 79:361-373
2. Concepts2.4 Formation des tourbillons
Transport d’Ekman
CONVERGENCE
13
SURFACE OCEANIQUE
UPWELLING UPWELLING
ANTICYCLONIC EDDY
THERMOCLINE
Forçage climatique: Formation des tourbillons anticycloniques
D’après Bakun, 2010 Journal of marine systems 79:361-373
2. Concepts2.4 Formation des tourbillons
14
THERMOCLINE
UPWELLING
SURFACE OCEANIQUE CYCLONIC EDDY
SURFACE OCEANIQUE
UPWELLING UPWELLING
ANTICYCLONIC EDDY
THERMOCLINE
Forçage climatique: Formation des tourbillons, « spinning up»
D’après Bakun, 2010 Journal of marine systems 79:361-373
2. Concepts2.4 Formation des tourbillons
15
THERMOCLINE
UPWELLING
SURFACE OCEANIQUE CYCLONIC EDDY
UPWELLING
Système libre: Disparition des tourbillons cycloniques
D’après Bakun, 2010 Journal of marine systems 79:361-373
2. Concepts2.4 Formation des tourbillons
16
THERMOCLINE
UPWELLING
SURFACE OCEANIQUE CYCLONIC EDDY
SURFACE OCEANIQUE
UPWELLING UPWELLING
ANTICYCLONIC EDDY
THERMOCLINE
Système libre: Disparition des tourbillons, « spinning down »
D’après Bakun, 2010 Journal of marine systems 79:361-373
2. Concepts2.4 Formation des tourbillons
17
SURFACE OCEANIQUE
ANTICYCLONIC EDDY
THERMOCLINE UPWELLING
Système libre: Disparition des tourbillons anticycloniques
D’après Bakun, 2010 Journal of marine systems 79:361-373
2. Concepts2.4 Formation des tourbillons
18
THERMOCLINE
UPWELLING
SURFACE OCEANIQUE CYCLONIC EDDY
UPWELLING
SURFACE OCEANIQUE
ANTICYCLONIC EDDY
THERMOCLINE UPWELLING
Système libre: Disparition des tourbillons, « spinning down »
D’après Bakun, 2010 Journal of marine systems 79:361-373
2. Concepts2.4 Formation des tourbillons
THERMOCLINE
UPWELLING
SURFACE OCEANIQUE CYCLONIC EDDY
SURFACE OCEANIQUE
UPWELLING UPWELLING
ANTICYCLONIC EDDY
THERMOCLINE
THERMOCLINE
UPWELLING
SURFACE OCEANIQUE CYCLONIC EDDY
UPWELLING
SURFACE OCEANIQUE ANTICYCLONIC EDDY
THERMOCLINE UPWELLING
2. Concepts2.4 Formation des tourbillons
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• Exposition de théories (réunion, confirmation et généralisation)
Concepts biologiques
Conceptsphysiques
3. Conclusion
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• Bakun, A., Cury, P., 1999. The “school trap”: a mechanism promoting large-amplitude out-of-phase population oscillations of small pelagic fish species. Ecol. Lett. 2, 349–351.
• Bakun A. 2010. Linking climate to population variability in marine ecosystems characterized by non-simple dynamics: Conceptual templates and schematic constructs. Journal of Marine Systems 79, 361–373.
• Durant, Joël M.; Hjermann, Dag Ø.; Ottersen, Geir & Stenseth, Nils Chr. (2007). Climate and the match or mismatch between predator requirements and resource availability . Climate Research (CR). ISSN 0936-577X. 33(3), s 271- 283.
• FAO, Fisheries technical paper 410. Climate Change and Long-Term Fluctuations of Commercial Catches - The Possibility of Forecasting. Prof. Leonid B. Klyashtorin. Federal Institute for Fisheries and Oceanography Moscow. Rome, 2001. Cap 10. Peculiarities of the catch dynamics of Peruvian and Japanese anchovy and sardine.
• Hormazabal S, Núñez S, Arcos ,D., Espindola ,F., Yuras, G. 2004. Mesoscale eddies and pelagic fishery off central Chile (33-40°S). Gayana 68(2) supl. t.I. Proc. : 291-296.