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💧 Freshwater Critically Endangered 🌡️ Temperate

Bear Island charr

Salvelinus salvelinoinsularis Lönnberg, 1900
Max Length
37.5 cm
Max Weight
-
Lifespan
16 yrs
Trophic Level
3.8
Depth
-
Climate
Temperate
Resilience
Low
Vulnerability
48.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Bear Island charr (Salvelinus salvelinoinsularis) is a ray-finned fish of the family Salmonidae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 37.5 cm. With a trophic level of 3.8, it is a mid-level predator. It is assessed as Critically Endangered on the IUCN Red List.

Scientific Name
Salvelinus salvelinoinsularis
Authority
Lönnberg, 1900
Habitat
Freshwater
Climate
Temperate
Body Shape
Fusiform / normal
IUCN Status
CR
Max Length
37.5 cm
Lifespan
16 years
Trophic Level
3.8
Resilience
Low
Vulnerability
48.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Differs from the sympatric, non-anadromous Salvelinus salvelinus population by having the following unique characters: maximum size 17 cm SL; spawns for the first time at 11.0 cm SL (vs. 28 cm SL); and mature individuals with belly drab bronze greyish (vs. bright yellow to carmine). Can be further diagnosed by having 30-42 pyloric caeca (vs. 39-52); 22-26 gill rakers (vs. 24-27);and mature individuals often with parr marks (vs. absence) .: fusiform / normal.

🌀 Behaviour

Behavioural data for Bear Island charr is currently being reviewed.

🦐 Diet

Diet information for Bear Island charr is currently being compiled.

🥚 Reproduction

Reproduction data for Bear Island charr is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal. Temperate

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.8±0.5
Food Items

benthic invertebrates (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00977 × L3.04 (TL)
Max TL
37.5cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
48.00/100
Moderate-High vulnerability
Trophic Level
3.8
Predator
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Lönnberg, 1900

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