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Diadromous Critically Endangered 🌡️ Temperate

Atlantic whitefish

Coregonus huntsmani Scott, 1987
Max Length
40 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
43.00/100
Typical Length
27.5 cm
Depth Zone
pelagic

📖 Overview

Adults occur in near-shore coastal waters, open water of lakes and small to large rivers, and often in current in rivers. This species belongs to C. clupeaformis complex . Anadromous .

Scientific Name
Coregonus huntsmani
Authority
Scott, 1987
Habitat
Diadromous
Climate
Temperate
Body Shape
Elongated
IUCN Status
CR
Max Length
40 cm
Trophic Level
3.5
Resilience
Medium
Vulnerability
43.00/100
Migration
Anadromous
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 10 - 12; Anal spines: 0; Anal soft rays: 9 - 12; Vertebrae: 63 - 64. Body elongate and tapering, compressed laterally but less so than lake whitefish, greatest body depth at front of dorsal fin. Head relatively short, never observed with nuchal hump; eye small, adipose eyelid distinct; snout length always greater than eye diameter; upper jaw or snout projecting slightly in large males: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Atlantic whitefish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner 🪺 Nest Builder 🛡️ Egg Guarder
Spawning Season
spring
Spawn Location
Nest
Fertilization
External

🌍 Habitat & Distribution

Marine; freshwater; brackish; pelagic-neritic; anadromous . Temperate; 44°N - 43°N known only from Yarmouth Harbor, Tusket River drainage, and Leipsigate Lake in southern Nova Scotia, Canada.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish 🐟 Pelagic
Migration
Anadromous
Trophic Level
3.5±0.45

📐 Morphometrics

Length–Weight Relationship: W = 0.00457 × L3.13 (TL)
Max TL
40cm
Dorsal Rays
11
Anal Rays
11
Vertebrae
64

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2015

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
43.00/100
Moderate vulnerability
Trophic Level
3.5
Predator
Body Shape
Elongated
Climate Zone
Temperate
Described By
Scott, 1987

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