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💧 Freshwater 🌡️ Temperate

Kosogol grayling

Thymallus nigrescens Dorogostaisky, 1923
Max Length
48.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
47.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Kosogol grayling (Thymallus nigrescens), first described by Dorogostaisky, 1923 is a large fish in the family Salmonidae (order Salmoniformes). Adults typically reach 48.40 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Temperate waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.

Scientific Name
Thymallus nigrescens
Authority
Dorogostaisky, 1923
Habitat
Freshwater
Climate
Temperate
Max Length
48.4 cm
Trophic Level
3.4
Resilience
Medium
Vulnerability
47.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Kosogol grayling is currently being compiled.

🌀 Behaviour

Behavioural data for Kosogol grayling is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

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

🌍 Habitat & Distribution

Freshwater; benthopelagic. Temperate endemic to Lake Khuvsgul, Mongolia.

🌿 Ecology

Zone Preferences
💧 Freshwater
Feeding Mode
Omnivore
Trophic Level
3.4±0.45

📐 Morphometrics

Length–Weight Relationship: W = 0.00468 × L3.12 (TL)
Max TL
48.4cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
47.00/100
Moderate-High vulnerability
Trophic Level
3.4
Predator
Climate Zone
Temperate
Described By
Dorogostaisky, 1923

👥 Community & Contribute

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