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Workshop 2

Large-scale regional comparisons of marine biogeochemical and ecosystem processes: Research approaches and results

Workshop 2 presentations

Day 1 - Monday Oct. 11, 2010

8:45-9:15 Opening Session / Welcome  Julie Hall
9:15-10:00 Plenary 1: Stoichiometry, trophic dynamics, and all that jazz Kevin Flynn
10:00-10:45 Plenary 2: Food web sensitivity to enhanced stratification Paul Wassmann
10:45-11:15 Coffee Break

Plenary 3: Controls on ecosystem structure: The need for an integrated fisheries to biogeochemistry approach
 Part I: Controls on ecosystem structure: the need for an integrated fisheries to biogeochemistry approach

 Part II: A biogeochemical perspective

Ken Frank
 Chris Sabine
12:45-13:45 Lunch
13:45-14:00 Introduction and plans for regional comparisons workshop Raleigh Hood /
 Ken Drinkwater
14:00-14:20 Session 1 "Comparative methodology" Ken Drinkwater
14:00-14:20 Large-scale regional comaprisons of ecosystem processes: methods and approaches Louis Legendre
14:20-15:30 Session 2 "Integrating biogeochemistry and food webs" Raleigh Hood
14:20-14:40 Geochemistry and ecology of the Namibian upwelling system Kay Emeis
14:40-15:00 Comparisons of end-to-end models of shelf ecosystems John Steele
15:00-15:20 East-west comparison of the Subarctic Pacific ecosystems: influences of physical processes on the dynamics of iron, phytoplankton and zooplankton Hiroaki Saito
15:20-15:30 Discussion  
15:30-16:00 Coffee Break
16:00-18:00  Session 2 "Integrating biogeochemistry and food webs" (continued)  
 16:00-16:20 Can we conduct global ecosystem comaprisons using a single model structure and parameterization? Olivier Maury
16:20-16:40 Regional ecosystem responses to global change Raghu Murtuggude
16:40-17:00 Modelling approaches to investigate geographical variation of fish responses to climate forcing Shin-ichi Ito
17:00-18:00 Discussion: How do we improve integration of biogeochemistry and food web research? Ken Franck and
Chris Sabine
18:00 Ice breaker

Day 2 - Tuesday Oct. 12, 2010

9:00-10:30  Session 3 "Regional comparisons – High latitudes" Ken Drinkwater

Spring bloom dynamics in the polar ocean shelf regions analyzed using satellite sensed surface chlorophyll concentrations

Yngve Børsheim

The Barents and Chukchi Seas Compared - Why is the Barents so much more productive?

George Hunt
9:40-10:00 Synthesis of Southern Ocean food webs Eileen Hofmann

Biochemical characterization of sediments and benthic macrofauna from the Eastern Antarctic Peninsula and the South Eastern Weddell Sea

Elisabet Sane
10:20-10:50 Coffee Break
10:50-12:30 Session 4 "Regional comparisons – From estuarine to basin scale" Raleigh Hood
10:50-11:10 A steady-state comparative simulation of dissolved organic matter cycling in idealized oceanic, coastal and estuarine surface waters: the role of the planktonic community structure David Keller

Structure and function of food webs at contrasting sites in the central and southern North Sea

Suzanne Painting

Comparison of coastal versus mid-basin Black Sea ecosystem processes

Baris Salihoglu

Link between atmospheric deposition and downward flux of metals and carbon in seawater: Cases of Eastern Mediterranean and Black Sea

Nikoalos Mihalopoulos

Modification of dynamical and biogeochemical processes by the Indian Ocean Dipole: contrasting the Arabian Sea and Bay of Bengal

Jerry Wiggert
12:30-13:30 Lunch
13:30-15:00  Session 4 "Regional comparisons – From estuarine to basin scale" (continued)  

Rich biodiversity of copepods in Bay of Bengal compared to Arabian Sea: Synthesis of data for the past 50 years; effect of biogeochemical features

Rosamma Stephens

Coastal upwelling systems under changing climate: A comparative study of the California and the Canary Current systems

Zouhair Lachkar

Particle distributions, vertical fluxes from the euphotic zone, and the potential role of flux feeders as gatekeepers

Dave Checkley
14:30-15:00 Discussion: How should comparative studies be conducted? S. Painting, B. Salihoglu, G. Hunt
15:00-15:30 Coffee Break
15:30-16:30 Discussion: How should comparative studies be conducted? (continued)  
16:30-19:00 Joint Poster Session

Day 3 - Wednesday Oct. 13, 2010

9:00-10:30  Session 5 "Intra- and Interbasin Comparisons" Raleigh Hood
9:00-9:20 Regional comparisons across the North Atlantic subtropical gyre: Differences in nutrient supply and the biological carbon pump Susanne Neuer
9:20-9:40 Temporal variability in organic matter inventories in the oligotrophic North Pacific Ocean and the Sargasso Sea: a HOT and BATS comparisons Matthew Church
9:40-10:00 BATS and HOT: Comparative analysis of similar yet different marine ecosystems Michael Lomas
10:00-10:20 Spatial and temporal variations in carbon fluxes in the tropical oceans: comparisons of Pacific and Atlantic Oceans Wendy Wang
10:20-10:30 Discussion  
10:30-11:00 Coffee Break
11:00-12:30 Breakout sessions: discussion of issues that cross-cut all three workshops  
12:30-13:30 Lunch Buffet
13:30-15:00 Breakout sessions: discussion of issues that cross-cut all three workshops  
15:00-15:30 Coffee Break
15:30-17:30  Session 6 "Global comparisons" Ken Drinkwater
15:30-15:50 Large-scale regional comparisons of marine biogeochemistry and ecosystem processes: application of production models as a tool to identify key factors within and between ocean basins Jason Link
15:50-16:10 Inter-ocean comparisons of oceanic food webs: can latitudinal differences in prey composition be used to understand impacts of ocean warming?  Frédéric Ménard
16:10-16:30 A comparison of the biological pump in different ocean regions Ken Buesseler
16:30-16:50 A comparison between a 3D ecosystem model and satellite observations of phytoplankton community structure in the global oceans Taka Hirata
16:50-17:10 A global comparison of marine ecosystem response to fishing using a suite of ecological indicators Jason Link
for Alida Bundy
17:10-17:30 Discussion  
19:30 Conference Dinner

Day 4 - Thursday Oct. 14, 2010

9:00-10:00 Discussion: What have we learned from comparative studies? John Steele,
Susanne Neuer
10:30-11:00 Coffee Break
11:00-12:30 Discussion: Where do we go from here? Raleigh Hood,
 Ken Drinkwater
12:30-13:30 Lunch
  Workshop 1 Final Report Dan Repeta
  Workshop 2 Final Report Raleigh Hood
  Workshop 3 Final Report Mickael Landry
  Best young scientist Award - Closing IMBIZO Julie Hall