Three Canadian "Species at Risk":
Wolffish (Anarhichas spp.)
There are three species of Wolffish in the Northern part of the
Atlantic Ocean, the Atlantic or
Striped wolffish (Anarhichas lupus)
[top], Spotted Wolffish (A. minor)
[middle], and the Northern or
Broadhead Wolffish (A. denticulatus)
[bottom]. They are sedentary and slow growing fish, found in deep
waters on the Continental Shelf.
Wolffish are first
Canadian marine "Species
at Risk." Under the Canadian Species
at Risk Act (SARA), the Committee
on the Status of Endangered Wildlife in Canada (COSEWIC) in 2000 designated the Striped
Wolffish as a species of Special Concern
("... particularly sensitive to human
activities or natural events...."),
and in 2001 designated the Spotted and Northern Wolffish as Threatened
species ("...likely to become
endangered if limiting factors are not reversed.").
Wolffish
populations have declined by over 90%
since the 1970's. They are caught as by-catch in
directed fisheries, and commercial fishing gear destroys their habitat
by moving the rocks
and boulders under which the wolffish live, spawn, and nest.
Figures © Department of
Fisheries and Oceans; text after K. A. Johnstone; all
material © 2005
by
Steven M. Carr