Directory entires that have specified Canada as the primary or lead country for the project/activity and are included in the AMAP, ENVINET, SAON and SEARCH directories. To see the full list of countries, see the countries list. The specified country may not be the geographic region where the activity is taking place - to select a geographic region, see the list of regions.
It is also possible to browse and query the full list of projects.
To edit or add records to any of the catalogs, log in or create an account.
In September 1997, the CCGS Des Groseillers was frozen into the permanent ice-pack and started a year-long science program drifting across the southern Canada Basin. This program provided a unique opportunity to carry out a "vertical" food-chain study in a seasonal context to learn how the physical and biological systems couple to produce contaminant entry into the food web (Figure 1). "Vertical" components included the water and ice, particles, algae, zooplankton (sorted by trophic level), fish and seal.. The interpretation of contaminant data collected during SHEBA will provide information about the relationship between seasonal ice formation and melt, seasonal atmospheric transport and water column organochlorine concentrations in the Canada Basin. In addition our contaminant sampling program was integrated within a larger science plan where other SHEBA researchers studied the physical and biological properties of the water column. This means that contaminant distributions can be interpreted and modeled within the full context of physical, chemical and biological processes, and of atmospheric and oceanic transport mechanisms.