Colloquium


Terms of reference

Oceanic primary production is a key component of the marine carbon, oxygen and nutrient cycles as well as the base of the marine food web. Over the past two decades, substantial efforts were deployed to evaluate oceanic primary production. These efforts include in situ measurements of uptake rates using isotopic trace techniques, satellite remote sensing, autonomous instrumentation for bio-optics, carbon or oxygen measurements, and the development of semi-empirical to complex biogeochemical models.

The 45th International Liege Colloquium on Ocean Dynamics will investigate new insights related to the evaluation of primary production and the study of the dynamics between physical forcing and ocean productivity responses at various physical and temporal scales. Particular attention will be focused on the variability at the synoptic to seasonal scales and how it complicates our ability to sample primary production and derive large-scale, climate-driven primary production budgets.

More specifically, the following topics will be covered:

  • Importance of physical factors, such as transport and mixing, controlling light limitation and nutrient supply
  • Primary production spatial variability: from the sub-mesoscale to the global scale
  • Primary production temporal variability: from season to century-scale
  • Progress in in-situ evaluation, resolution of in-situ data
  • Progress in primary production retrieval from space (e.g. algorithms dealing with Case II waters and PFT distribution)
  • Fate of primary produced material
  • Ocean PP variability: bottom up versus top down control (e.g. role of viruses, grazing, scavenging)
  • Progress in biogeochemical models in relation to phytoplankton physiology, the representation of variable stoichiometric ratios, the role of mixotrophy.
  • Biodiversity of primary producers as addressed by in-situ measurements, satellite data and biogeochemical models
  • interoperability of in-situ, satellite and modelling estimates of primary production
  • Primary production in polar regions and sea-ice, coastal versus deep ocean processes,
  • Impact of benthic Habitat (e.g. seagrass coral) on primary production and importance of benthic diagenetic processes on pelagic primary production.

Thematic sessions and Keynote talks

  • Opening Keynote talk by John Marra
  • Primary Production in the Arctic Ocean (convener: Marcel Babin, Keynote: Eddy Carmack)
  • Primary Production in the Antarctic Ocean (convener: Pedro Monteiro, Keynote: Mchael Bender)
  • Primary Production in sea-Ice (convener: David Thomas, Keynote CJ Mundy)
  • Phytoplankton Functional Types (convener: Shubha Sathyendranath, Keynote : Mike Follows)
  • Benthic- pelagic coupling (conveners: M. Vichi, P. Régnier: Keynote: Sandra Arndt)
  • Primary production variability and coastal-offshore export in upwelling regions (IMBER session, convener Javier Arístegui: Keynote: Francisco Chavez)
  • Impact of meso/submesoscale on Primary Production (convener: Marina Lévy, Keynote: Amala Mahadevan)
  • Modelling (convenor: Marilaure Grégoire)
  • Field estimates of Primary Production (convener, John Marra, Keynote: Emilio Marañòn)
  • Satellite (convenor: Gavin Tilstone)

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List of participants

The list of participants click here for a description

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Scientific Organizing Committee

  • Icarus Allen (UK)
  • Javier Arístegui (Spain)
  • Marcel Babin (Canada)
  • Michael Bender (USA)
  • Laurent Bopp(France)
  • Alberto Borges (Belgium)
  • Pierre Brasseur (France)
  • Peter Franks (USA)
  • Marion Gehlen (France)
  • Marilaure Grégoire (Belgium)
  • Nathalie Gypens (Belgium)
  • Pierre Lermusiaux (USA)
  • Julien LeSommer (France)
  • Marina Lévy (France)
  • John Marra (USA)
  • Adrian Martin (UK)
  • Richard Matear (Australia)
  • Pedro Monteiro (South Africa)
  • Pierre Régnier (Belgium)
  • Rui Santos (Portugal)
  • Vedula.V.S.S. Sarma (India)
  • Shubha Sathyendranath (UK)
  • Karline Soetaert (The Netherlands)
  • Frede Thingstad (Norway)
  • David Thomas (UK)
  • Gavin Tilstone (UK)
  • Marcello Vichi (Italy)
  • Sinjae Yoo (Korea)

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Program

Program 2013

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Abstracts

  • For poster presentation: Poster should fit within a vertical frame with 125 cm height and 92 cm width
  • For oral presentation: You will have 15 minutes of presentation and 5 minutes for questions
  • Abstracts 2013

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Online Presentations

Opening Talk: John Marra

Ocean Productivity: A Personal Perspective

Session 1 : Primary Production in the Arctic Ocean

Convener: M. Babin

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Keynote: E. Carmack

Processes Affecting Primary Productivity in the Arctic Ocean: an Overview and Perspective

Henson S., H. Cole, C. Beaulieu, A. YooL

The impact of global warming on seasonality of ocean primary production

Vancoppenolle M., Bopp L., Madec G., Dunne J., Ilyina T., Halloran P., Steiner N.

Future Arctic Primary Productivity from CMIP5 Simulations: Uncertain Outcome, but Consistent Mechanisms

Spitz Y. H., Ashjian C. J., Campbell R. G., Steele M., Zhang J.

Western Arctic Ocean Primary Productivity Changes over the Last Three Decades and in the Future: not a Simple Story

Stanley R. H. R., Sandwith Z. O., Williams W. J.

Rates of Summertime Biological Productivity in the Beaufort Gyre: A Comparison between the Record-Low Ice Conditions of August 2012 and Typical Conditions of August 2011

Juul-Pedersen T, K Engel Arendt, J Mortensen, M Blicher, S Rysgaard

A 6-year study of pelagic primary production in a freshwater influenced sub-Arctic fjord system – with a view to the past

Session 2 : Primary Production in the Antarctic Ocean

Convener: P. Monteiro

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Keynote: M. Bender

On the small range of net community production rates in the open ocean

Blain S.

What is the upper limit for primary production in the Southern Ocean?

Castro-Morales K., Cassar N., Kaiser J.

Biological production and the influence of vertical physical processes in the Bellingshausen Sea, Southern Ocean

Cavagna A.-J., Dehairs F., Jacquet S., Planchon F.

Primary production and potential for carbon export in naturally iron-fertilized waters in the Southern Ocean

Joubert W, Thomalla S, Swart S and Monteiro PMS

The Sensitivity of the Seasonal Cycle of Phytoplankton Productivity to sub-Seasonal Mixed Layer Dynamics in the Sub-Antarctic Region

Tagliabue A, J-B Sallée, A Bowie, P Boyd, M Lévy, S Swart

Towards Reconciling Iron Supply and Demand in the Southern Ocean

Sallée J-B, Llort J., Tagliabue A., Lesommer J., Lévy M.

Towards understanding the spatial variability of bloom onset in the Southern Ocean

Shadwick E. H., Cassar N., Tilbrook B., Trull T.

Influence of net community production and physical processes on surface oxygen and carbon distribution along a north-south section across the Australian Sector of the Southern Ocean

Swart S., Thomalla S. J., Monteiro P. M. S.

Resolving the seasonal cycle of mixed layer physics and phytoplankton biomass in the Sub-Antarctic Zone using high resolution glider data

Trull T., Weeding B., Davies D., Bray S., Jansen P.

Productivity estimates from hourly automated measurements at the Australian Southern Ocean Time Series site

Session 3 : Primary Production in sea-Ice

Convener: D. Thomas

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Keynote: C.J. Mundy

Arctic spring: key processes influencing timing of primary producers in ice-covered waters

Meiners K. M., M. Vancoppenolle, S. Thanassekos, Dieckmann G. S., D. N. Thomas , J.-L. Tison, K. R. Arrigo, D. L. Garrison, A. McMinn, D. Lannuzel, P. Van Der Merwe, K. M. Swadling, W. O. Smith JR., I. Melnikov, B. Raymond

Chlorophyll a in Antarctic sea ice from historical ice core data

Tedsco L., M. Vichi, H. Kaartokallio

Sea ice biogeochemistry: a guide for marine ecosystem modellers

Fernánde-Méndez M., I.Peeken, A.Boetius

New estimates of primary productivity and its limiting factors in the Central Arctic

Session 4 : Phytoplankton Functional Types

Convener: S. Sathyendranath

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Keynote: M. Follows

Traits and trade-offs that shape diverse phytoplankton populations

Anabalón V., J. Arístegui, C.E. Morales, I. Andrade, M. BenavIdes, M. Correa-ramírez, M. Espino, O. Ettahiri, S. Hormazabal, A. MakaoIu, M.F. Montero, A. OrbI

The structure of planktonic communities under variable coastal upwelling conditions off Cape Ghir (31ºN), in the Canary Current System (NW Africa)

Bouman H. A., S. Sathyendranath, T. Platt

Environmental Controls on Phytoplankton Photophysiology and Community Structure in Temperate Coastal and ShelfWaters

Bretherton L. M. J., T. Lawson, C. M. Moore, A. Poulton, R. J. Geider, D. J. Suggett

Light availability affects the ocean acidification response in coccolithophores

Bruggeman J., K.W. Wirtz

Phytoplankton plasticity controls long-term variability: lessons from a lake

Dufosse F., V. Gentilhomme, F. Goulard, E. Breton, N. Degros, S. Lefebvre

Impact of nutrient limitation on the productivity of three functional groups of marine phytoplankton: experimental approach

Huete-Ortega M., P. Cermeño, A. Fernández, B. Fernández-Castro, N. González, D. López-Sandoval, B. Mouriño-Carballid, C. Sobrino, E. Marañòn

Environmental control on phytoplankton size-fractionated primary production in the tropical and subtropical Atlantic, Indian and Pacific oceans

Lew S., A. Martin, T. Anderson, M. Zubkov

Multiple use of light energy by open ocean keystone cyanobacteria: A modelling study

Nicholson D., S. Doney, R. Stanley, I. Lima

Dissolved gas tracers of gross primary production and net community production: perspectives from a global ecosystem and biogeochemistry model.

Palacz A.P., M.A. St. John, R.J.W. Brewin, T. Hirata

Distribution of phytoplankton functional types in high-nitrate low-chlorophyll waters in a new diagnostic ecological indicator model

Sathyendranath S., V. Stuart, H. Bouman, T. PLatt

Field measurements of bio-optical properties of phytoplankton types for use in primary production models

Hickman AE, S Dutkiewicz, O Jahn, WW Gregg, MJ Follows

The role of light for phytoplankton distributions and productivity

Borchard, C., Wurst, M. and Engel, A.

Particulate and size-fractionated dissolved primary production derived from Emiliania huxleyi

Terseleer N., J. Bruggeman, C. Lancelot, N. Gypens

Trait-based representation of diatom diversity in a Plankton Functional Type model

Session 5: Benthic- pelagic coupling

Convener: M. Vichi & P. Regnier

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Keynote: S. Arndt

An integrative view of the biological carbon pump: from the surface ocean to the deep sediment

Borges AV, Champenois W

Seasonal and inter-annual variations of gross primary production, community respiration, and net community production of a i seagrass meadow

Closset I., D. Cardinal, F. Thil, S. Bray, T. Trull

Seasonal variation, origin and fate of settling diatoms in the Southern Ocean tracked by silicon isotope record in deep sediment traps

Martini E, Desmit X, Lacroix G, Kerckhof F, Degraer S

Assessing bivalve‘s distribution as a response to phytoplankton/inorganic suspended particles ratio in the Belgian Coastal zone: a trait based model.

J. Harlay, L. Chou, K. Sabbe, N. Van Oostende, A. Engel, J. Piontek and A. Borges

Coccolithophore blooms in the Bay of Biscay: Results from the PEACE project

Stegert C., L. Memery, T. Gorgues, J. Deshayes

Up or down – Modeling the fates and rates of phytoplankton carbon in the North Atlantic Ocean

Capet A., M. Grégoire, J.-M. Beckers, F. Meysman, K. Soetart

Introducing dynamic benthic fluxes in 3D biogeochemical model : an application on the Black Sea North-Western shelf

Pena A., D. Masson

The role of physical factors in determining the variability and fate of primary production in the Strait of Georgia: A biophysical model study

Session 6: Primary production variability and coastal-offshore export in upwelling regions (IMBER Session)

Convener: J. Arístegui

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Keynote: F. Chavez

Climate driven variations in the source and fate of primary production in coastal upwelling systems

Arístegui J., X.A. Álvarez-Salgado, F. Alonso-Pérez, V. Anabalón, F. Baltar, M. Benavides, M. Espino, F.G. Figueiras, M. Froján, R. Graña, M.F. Montero, X.A. Padí N, F.F. Pérez, T. Reinthaler, A.F. Ríos, G. Rosó N, P. Sangrá, I.G. Texeira, C. Troupin, E.D. Barton

Variability in primary production, carbon stocks and fluxes, plankton community structure and metabolic balance, along the Cape Guir filament (NW Africa): A lagrangian approach

Castro C.G., B. Arbones, X.A. Alvarez-Salgado, F. Alonso-Pérez, M. Frojáan, D. Zúñiga, I.G. Teixeira, F.G. Figueiras

Net ecosystem metabolism in the NW Iberian Upwelling System on an annual cycle

Figueiras F.G., O. Espinoza-González, B. Arbones, I.G. Teixeira, C.G. Castro

Estimating phytoplankton size-fractionated primary production in the NW Iberian margin: is mixotrophy relevant in pigmented nanoplankton?

García-García L. M., M. Ruiz-Villarreal, P. Otero

Modeling the spring bloom in North and North West Iberia by means of a N2PZD2 model

Greenwood J., R. Matear, C. Sun, J. McLaughlin

Impact of submesocale upwelling on phytoplankton production along an oligotrophic boundary current

Hosegood, P. J., Torres, R. J.

Nutrient pumping by submesoscale instabilities in the Mauritanian upwelling system

Messié M., F. P. Chavez

Regulation of seasonal primary production in eastern boundary upwelling systems

Morales C.E., S. Hormazabal, I. Andrade, M. Correa-Ramirez

High resolution time-space variability of satellite chlorophyll-a in the coastal and coastal transition zones off central-southern Chile (33-42ºS)

Session 7 : Impact of meso/submesoscale on Primary Production

Convener: M. Lévy

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Keynote: A. Mahadevan

Impact of meso- and submeso-scale dynamics on primary production

Ayata S.-D., O. Bernard, O. Aumont, A. Tagliabue, A. Sciandra, M. Lévy

Effects of photo-acclimation and variable stoichiometry of phytoplankton on production estimates from 1D and 3D marine ecosystem modelling

DOvidio F

The structuring role of horizontal stirring on primary production

Gaube P., D. Chelton, D. McGillicuddy

Regional Variability of the Observed Influence of Mesoscale Ocean Eddies on Near-Surface Chlorophyll

Hardman-Mountford N, C Robinson, R Torres, T Smyth, I Brown, V Kitidis, P Serret, P Nightingale

Quantifying competing carbon pathways in mesoscale upwelling filaments off NW Africa

Jonsson B, J Salisbury, A Mahadevan

Episodicity in Phytoplankton Dynamics on Regional and Global Scales

Martin A.P., R.E.M. Pidcock, J.T. Allen, S.C. Painter, M.A. Srokosz

Quantifying the mesoscale influence on primary production in the field

Matear R

Climate change projection of phytoplankton concentrations and primary production using an eddy-resolving ocean model

McKiver W. J., M. Vichi, T. Lovato, A. Storto, S. Masina

Enhancement of primary production at greater resolved scales: results from the GreenSeas project

Session 8 : Modelling

Convener: M. Grégoire

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Arteaga L., M. Pahlow, A. Oschilies

Estimating global-ocean primary production, and nutrient-light colimitation by combining remote-sensing data with an optimality-based phytoplankton model

Daewel U, C Schrum, D Pushpadas

Processes relevant for multi-decadal changes in primary production in the North Sea and Baltic Sea: hindcast and scenario modelling

Grosse F, J O. Backhaus, J Pätsch, B Walter

Parameterising primary production and convection in a 3D model

Lévy M. and Martin A. P.

On the magnitude of Primary Production Reynolds effects in the open ocean

Cossarini G. Lazzari P. and Solidoro C.

Primary production and the carbonate system in the Mediterranean Sea

Muacho S., J.C.B. Da Silva, V. Brotas, P.B. Oliveira

Internal tidal waves effects on near-surface chlorophyll concentration and primary production around Nazaré Canyon (western Portugal) and in the central region of the Bay of Biscay

Prowe AEF, Andersen KH, T Kiorboe, AW Visser

Zooplankton feeding traits and community composition in a global ecosystem model

Völker C., Holtz L., Hauck J., Wang T., Wolf-Gladrow D.

Ground-truthing variable-stoichiometry models

Session 9 : Field estimates of Primary Production

Convener: J. Marra

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Keynote: E. Marañòn

Patterns in phytoplankton size structure: abundance, biomass and production in coastal and open-ocean waters

Ferrari R. , G. Flierl, A. Mignot

Biological and physical triggers of the North Atlantic Spring Bloom

Jacox M. G., C.A. Edwards, M. Kahru, D. L. Rudnick and R. M. Kudela

Potential for Improving Primary Productivity Estimates through Subsurface Chlorophyll and Irradiance Measurement

Kromkamp J C., G Silsbe, J Waanders, J Peene

Automated FRRF measurements provide an alternative means to obtain seasonal and annual primary producton estimates in the Eastern andWestern Scheldt Estuaries.

Li Z, N Cassar

Estimation of Large-scale Net Community Production Patterns based on in-situ O2/Ar Measurements and Remotely Sensed Properties

Mantikci M., S. Markager, J.L.S. Hansen

The ratio of dark respiration to maximum photosynthesis and seasonal variability in two marine coastal waters

Napoléon C., P. Claquin

Estimation of primary production at high frequency using multi-parametric relationships between PAM measurements and carbon incorporation.

Peters F., E. Romero, R. Gallisai, O. Guadyol

The seasonal variability of chlorophyll with special emphasis in the Mediterranean

Tilstone G, T Smyth, A Rees

Spatial and temporal variability in satellite estimates of primary production over the Atlantic basin

Briggs N., M.J. Perry, E. Dásaro, K Gudmundsson, I. Cetiníc, E. Rehm, C. Lee

Using diel cycles in O2 and particulate organic carbon to estimate primary productivity from a Lagrangian mixed-layer float during the North Atlantic bloom

Ayers J. M. , P. G. Strutton

Low latitude export production and its high latitude nutrient sources: interannual variability

Session 10 : Satellite

Convener: G. Tilstone

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Zhongping Lee

Sensing primary production from ocean color: Puzzle pieces and their status

Thomas H, S E Craig, B J. W. Greenan, W J. Burt, G J. Herndl, S Higginson, L Salt, E H. Shadwick, J Urrego-Blanco

Understanding controls of diel patterns of biological CO2 fixation in the North Atlantic Ocean

Craig S E., H Thomas, C T. Jones, B J. W. Greenan, W K. W. LI, J Sheng, E Shadwick, W Burt

The effect of seasonality in phytoplankton community composition on carbon uptake on the Scotian Shelf, northwest Atlantic

Cole H. S., S. A. Henson, A. P. Martin, A. Yool

Physical drivers of interannual variability in phytoplankton phenology

Kahru M, M G. Jacox, R M. Kudela, Z Lee, B. G Mitchell

Optimized multi-satellite merger to create time series of primary production estimates in the California Current

Lavigne H., F. Dórtenzio, M. Ribera Dálcalà, H. Claustre

Mixed layer depth variability and phytoplankton phenology in the Mediterranean Sea

Soccodato A, F Dóvidio, S De Monte

Biodiversity hotspots of primary producers at the global scale

Organelli E., A. Bricaud, D. Antoine, J. Uitz

Retrieval of phytoplankton size classes from light absorption spectra using a multivariate approach

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Announcement

Colloquium announcement 2013

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