* To determine the processes that control the Georges Bank circulation and transport of biological, chemical, and geological materials in a strongly tidal and wind-driven system, and to determine how physical and biological processes control the population dynamics of the target organisms (early life stages of cod and haddock and the copepods Calanus finmarchicus and Pseudocalanus  spp.) in the Northwest Atlantic/Georges Bank area. * To embody this understanding in conceptual and quantitative models capable of elucidating  ecosystem dynamics and responses on a broad range of space and time scales. * To understand the effects of climate variability and climate change on the distribution, abundance and production of the target organisms.