Bering wolffish COSEWIC assessment and status report: chapter 14
Technical Summary
Anarhichas orientalis
Only known Canadian population occurs in Bathurst Inlet, Nunavut (Arctic Ocean)
Extent and Area Information
Extent of occurrence (EO)(km2)
Unknown
specify trend (decline, stable, increasing, unknown)
Unknown
are there extreme fluctuations in EO (> 1 order of magnitude)?
Unknown
area of occupancy (AO)(km2)
Unknown
specify trend (decline, stable, increasing, unknown)
Unknown
are there extreme fluctuations in AO (> 1 order magnitude)?
Unknown
number of extant locations
Bathurst Inlet
specify trend in # locations (decline, stable, increasing, unknown)
Unknown
are there extreme fluctuations in # locations (>1 order of magnitude)?
Unknown
habitat trend: specify declining, stable, increasing or unknown trend in area, extent or quality of habitat
Unknown
Population Information
generation time (average age of parents in the population) (indicate years, months, days, etc.)
Unknown
number of mature individuals (capable of reproduction) in the Canadian population (or, specify a range of plausible values)
Unknown
total population trend: specify declining, stable, increasing or unknown trend in number of mature individuals
Unknown
if decline, % decline over the last/next 10 years or 3 generations, whichever is greater (or specify if for shorter time period)
N/A
are there extreme fluctuations in number of mature individuals (> 1 order of magnitude)?
Unknown
is the total population severely fragmented (most individuals found within small and relatively isolated (geographically or otherwise) populations between which there is little exchange, i.e., ≤ 1 successful migrant / year)?
Very likely
list each population and the number of mature individuals in each
Bathurst Inlet: population size unknown
specify trend in number of populations (decline, stable, increasing, unknown)
Unknown
are there extreme fluctuations in number of populations (>1 order of magnitude)?
Unknown
Threats (actual or imminent threats to populations or habitats)
- Habitat damage by commercial bottom trawling activities
- By-catch in commercial fishery in North Pacific
- Future oil and gas exploration and development activities along inshore areas of the Western Arctic.
Rescue Effect (immigration from an outside source): Low
does species exist elsewhere (in Canada or outside)?
Yes
status of the outside population(s)?
No protection
is immigration known or possible?
Not known
would immigrants be adapted to survive here?
Most likely
is there sufficient habitat for immigrants here?
Unknown
Quantitative Analysis
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