US interests , submitted proposals & potential submissions

Meng Zhou, Peter Wiebe, Ken Buesseler, Jon Hare

General topics: 3 spatial scalesTransatlantic field work, retrospective studies, and

modeling will focus on gyres, fronts, and mixing; nutrients and trace metals; productivity and export of organic materials; plankton and fish population connectivity trophic dynamics, and community structure

US northeast regional field and model studies will focus on shelf and slope currents and eddies, nutrient dynamics, plankton and fish populations and biodiversity

Meso- and submeso-scale process studies will focus on spatial and temporal variation of coupled physical-biogeochemical-biological processes

The white lines and ellipses represent EU funded transatlantic cruises, regional study areas and meso- and submeso-scale studies; the red circled areas and lines represent CAN ongoing regional programs; the yellow ellipse and lines represent US envisioned transatlantic cruises, regional study areas and meso- and submeso-scale study sites; and light blue lines represent proposed US Overturning in the Subpolar North Atlantic Program.

Envisioned and funded field BASIN study sites in the North Atlantic Ocean:

Submitted proposals (Submitted on Aug 15 2011)Bucklin, et al.: Transcriptomic Responses to Climate-Related Stressors in Calanus finmarchicusZhou, et al.: North Atlantic Bloom ans Iron Study (NABIS)

Potential proposals (Feb and Aug 2012)Transatlantic cruises: Spatial gradients of nutrient, trace metals and plankton community structures and seasonal variability across the subpolar gyre and shelf seasClosing the Subpolar Gyre - to instrument the Icelandic freighters to monitor currents and fluxes Modeling of 60 years of the basin-scale Arctic-Atlantic hydro-biogeochemical stateVariability of growth, reproduction and life cycles of ecologically and commercially important zooplankton-fish species

Potential proposals (Continued)Mesoscale physical processes leading to cross-shelf slope exchange of nutrients, biomass and populationsSpatial/Temporal Variability in the Slope Sea: long-term moorings (upper 300m at 1500- 1000 meter off Hudson Canyon, the Pioneer Array and Browns Bank)Foodweb dynamics at shelf break and slope – coupling with physical and lower-higher trophic levelsWarming vs Freshening: Pattern and pathways of climate impacts on Northwest Atlantic shelf phytoplankton dynamics

Transatlantic cruises: Spatial gradients of nutrient, trace metals and plankton community structures and seasonal variability across the subpolar gyre and shelf seas

Potential participation in EU cruises:Physical processes: Meng Zhou

Biogeochemistry: Chris Measures (trace metals), Matt Charette (isotopes)

Phytoplankton: (Southampton group is covering us!)

Microbes: Karen Selph, Meng Zhou (size spectra),

Mesozoop/micronekton: Gareth Lawson/Peter Wiebe

Midwater fish: Tracey Sutton

Genetics: Ann Bucklin