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CONTINENTAL MARGINS – LINKING ECOSYSTEMS

CONTINENTAL MARGINS – LINKING ECOSYSTEMS. Jack Middleburg Nancy Rabalais KK Liu Burke Hales Helmuth Thomas Kai Wirtz Katja Fennel Paul Wassmann Isabelle Niang Diop Jing Zhang. OUTLINE I. Introduction II. Objectives III. Commonalities of IMBER, LOICZ and SOLAS

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CONTINENTAL MARGINS – LINKING ECOSYSTEMS

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  1. CONTINENTAL MARGINS – LINKING ECOSYSTEMS Jack Middleburg Nancy Rabalais KK Liu Burke Hales Helmuth Thomas Kai Wirtz Katja Fennel Paul Wassmann Isabelle Niang Diop Jing Zhang

  2. OUTLINE I. Introduction II. Objectives III. Commonalities of IMBER, LOICZ and SOLAS IV. Rationale V. Development of Plan VI. Study Topics VII. Cross Cutting Methodologies for Continental Margin Studies VIII. Integration of the Human Dimension IX. Approach for Success X. References

  3. Fig. 1. Important physical processes in continental margins (Liu et al., 2009)

  4. The objectives of the Continental Margins Implementation Plan are to • provide an understanding of the linkedbiogeochemical, physical and human dimensions of continental marginsystems • developaccuratepredictivecapacity for continental marginresponses to environmental and anthropogenic drivers, includingaccelerating global change and the consequenteffects on the earth system and human society • provideknowledge, understanding and predictionneeded to allowcoastalcommunities to assess, anticipate and respond to the interaction of global change and local pressures whichdeterminescoastal change • integrate the programs of IMBER (Integrated Marine Biogeochemistry and EcosystemResearch) and LOICZ (Land-Ocean Interactions in the Coastal Zone) across an important ecosystem

  5. Fig. 2. Domain of the Continental Margin Implementation plan in relation to IMBER and LOICZ.

  6. Fig. 3. Generalized model of shelf processes related to discharge of a large river efflux and the intensity of benthic fluxes related to faunal community, distribution in the sediments and level of bioturbation (from work on the Chanjiang continental shelf, Rhoads et al., 1985)

  7. Topic 1 Continental Margins as Sources or Sinks of CO2 Topic 2 Coupling of Multi-Element Cycles across Boundaries Topic 3 Interaction of Biology and Biogeochemical Cycles Topic 4 Potential Shifts in Continental Margin Systems with Increasing Atmospheric CO2 and Ocean Acidification Topic 5 End-to-End Food Webs Topic 6 Regime Shifts Topic 7 Ocean Shelf Exchange as a Gateway of the Earth System

  8. Cross Cutting Methodologies for Continental Margin Studies • Integration of Existing Tools and Analysis of their Applicability • Continental Shelf Ecosystem Comparisons • Integrated Ocean Observing Capabilities • Conceptual and numerical models

  9. Fig. 4. Delineation of large marine ecosystems and marginal seas (adapted from Sherman and Hempel 2009).

  10. Integration of the Human Dimension • This topic continues to surface and is critical for the incorporation of continental margin research, understanding and prediction as they related to societal needs. This is a both a LOICZ and IMBER theme but a strong component of LOICZ and as yet to be initiated theme of IMBER. This aspect of the Continental Margin IP was not discussed at the Open Science Meeting • IX. Approach for Success • WE DID NOT DISCUSS IN ANY DETAIL IN SHANGHAI, THIS SEEMS TO BE SOMETHING TO WORK OUT AMONG THE TWO IPOs AND THE TWO SSCs.

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