The northern Chukchi Shelf receives large inputs of organic matter from the highly productive shelf regions of the North Pacific and from local sources of primary production, including algae in the ice and sediment and phytoplankton in the water column. As a result, highly productive biological "hotspots" have been documented in the vicinity of Hanna Shoal. Because of the biological significance of this region and its importance for oil and gas exploration and development, the team is planning a multi-disciplinary investigation to examine the biological, chemical and physical properties that define this ecosystem.