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💧 Freshwater Data Deficient 🌡️ Temperate

Blackfin cisco

Coregonus nigripinnis Milner, 1874
Max Length
41.5 cm
Max Weight
-
Lifespan
14 yrs
Trophic Level
3.3
Depth
2–160 m
Climate
Temperate
Resilience
Low
Vulnerability
58.00/100
Typical Length
33 cm
Depth Zone
demersal

📖 Overview

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.

Scientific Name
Coregonus nigripinnis
Authority
Milner, 1874
Habitat
Freshwater
Climate
Temperate
Body Shape
Fusiform / normal
IUCN Status
DD
Max Length
41.5 cm
Lifespan
14 years
Depth Range
2–160 m
Trophic Level
3.3
Resilience
Low
Vulnerability
58.00/100
Migration
Non-migratory
Salinity
0–0.5 ppt

🐟 Physical Description

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.: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Blackfin cisco is currently being reviewed.

🦐 Diet

Diet information for Blackfin cisco is currently being compiled.

🥚 Reproduction

Reproduction data for Blackfin cisco is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal; non-migratory ; depth range 2 - 160 m. Temperate; 51°N - 41°N North America: restricted to Great Lakes (Lake Huron in Canada-USA and Lake Michigan in USA) and Lake Nipigon in Canada.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.3±0.45

📐 Morphometrics

Length–Weight Relationship: W = 0.00537 × L3.23 (TL)
Max TL
41.5cm
Dorsal Rays
10
Anal Rays
12
Vertebrae
58

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2016

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
58.00/100
High vulnerability
Trophic Level
3.3
Predator
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Milner, 1874

🌐 Names & Taxonomy

Language Common Names
🇬🇧English blackfin cisco
🇫🇷French cisco à nageoires noires

Scientific Synonyms

Scientific Name Author Year Status
Argyrosomus nigripinnis Milner 1874 Synonym
Argyrosomus prognathus Smith 1895 Synonym
Coregonus nigripinnis Gill 1872 Synonym
Coregonus nigripinnis nigripinnis Milner 1874 Synonym
Coregonus nigripinnis regalis Koelz 1929 Synonym
Coregonus prognathus Smith 1895 Synonym
Leucichthys nigripinnis - - Synonym
Leucichthys nigripinnis regalis Koelz 1929 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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