Coregonus nigripinnis, Blackfin cisco

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Coregonus nigripinnis (Milner, 1874)

Blackfin cisco
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Coregonus nigripinnis
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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: Lm ?  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 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.

Biology     Glossary (e.g. epibenthic)

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 Maturity | Reproduction | Spawning | Eggs | Fecundity | 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

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
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Ecology
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Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
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Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
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Larvae
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Otoliths
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

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.
Generation time: 7.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
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).