Canada country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: scarce (very unlikely) | Ref: Page, L.M. and B.M. Burr, 1991
Importance: minor commercial | Ref: Coker, G.A., C.B. Portt and C.K. Minns, 2001
Aquaculture: | Ref:
Regulations: protected | Ref: Page, L.M. and B.M. Burr, 1991
Uses: no uses
Comments: Existing only in Lake Nipigon, Ontario (Ref. 5723). Protected as a threatened species (Ref. 5723). Status of threat : Coregonus nigripinnis nigripinnis: possibly extinct; status same as 1989. Criteria: 2,4; Coregonus nigripinnis regalis: threatened. Criteria: 2,4 (http://fisc.er.usgs.gov/afs/) (Ref. 81264).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ca.html
National Fisheries Authority: http://www.ncr.dfo.ca/home_e.htm
Occurrences: Occurrences Point map
Main Ref: Coker, G.A., C.B. Portt and C.K. Minns, 2001
National Database:

Common names from other countries

黑鳍白鲑, Sortfinnet helt, 黑鰭白鮭, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Salmoniformes (Salmons) > Salmonidae (Salmonids) > Coregoninae
Etymology: Coregonus: Greek, kore = pupils of the eye + Greek, gonia = angle (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal; depth range 2 - 160 m. Temperate; 51°N - 41°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

North America: restricted to Great Lakes (Lake Huron in Canada-USA and Lake Michigan in USA) and Lake Nipigon in Canada.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 39.0 cm TL male/unsexed; (Ref. 5723); common length : 33.0 cm TL male/unsexed; (Ref. 1998); max. reported age: 14 years (Ref. 12193)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 9 - 11; Anal spines: 0; Anal soft rays: 10 - 13; Vertebrae: 56 - 59. This species is usually characterized by darkly pigmented fins and deep body. Body elongate, distinctly laterally compressed, and deep, the greatest body depth in front of the dorsal fin. Head triangular; eye large; snout blunt, its length usually greater than eye diameter; mouth terminal, lower jaw usually projecting beyond upper, sometimes equal to upper jaw, maxillary pigmented , and extending posteriorly to below the anterior edge of the pupil. Overall coloration dark silvery, with pink or purple iridescence on sides, back dark green to black and silvery below. Maxillary and mandible whitish but heavily pigmented. All fish typically black, particularly on outer half.

Formerly found in deep waters (90-160 m) of Lakes Michigan and Huron, and in 2-100 m in Lake Nipigon. Belongs to C. artedi complex.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p. (Ref. 3814)

IUCN Red List Status (Ref. 130435)

Extinct (EX) ; Date assessed: 01 August 1996

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00537 (0.00262 - 0.01101), b=3.22 (3.06 - 3.38), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.45 se; based on food items.

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (tmax=14).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (54 of 100).

Coregonus nigripinnis (Milner, 1874)