IMIS - Marine Onderzoeksgroepen

The core of the data in this database is brand re-sightings from a rigorous annual census of Grey Seals on Sable Island (Eastern Scotian Shelf, NW Atlantic) between late December and early February, and opportunistic sightings in areas where branded seals have temporarily or permanently migrated, including the Gulf of St. Lawrence, Western Scotian Shelf, Bay of Fundy and Gulf of Maine. Harbour Seal brand re-sight data and ecology data from the active research program from the late 80's to early 90's also included. Monitoring Utility & Uniqueness: This unique database includes 40 years of sightings data from permanently marked individuals of a large, long-lived marine mammal. This data allows for monitoring population size, estimating vital rates, and research on foraging ecology and life history theory. Understanding of the predator-prey interactions of this top marine predator is important for ecosystem based management. The re-sightings data and other individual life history data are used to monitor population size, estimate vital rates, and support research on foraging ecology and life history of Grey Seals. Study animal information including lengths, weights and other measurements for various projects on life history and foraging ecology.