💧 Freshwater
🌡️ Temperate
Thymallus Yaluensis
Thymallus yaluensis Mori, 1928
📖 Overview
Inhabits very cold and clean rivers. It has the most beautiful form and fins of a freshwater fish. .
Scientific Name
Thymallus yaluensis
Authority
Mori, 1928
Habitat
Freshwater
Climate
Temperate
Body Shape
Fusiform / normal
Max Length
20 cm
Trophic Level
3.2
Resilience
High
Vulnerability
27.00/100
Salinity
0–0.5 ppt
🔬 Taxonomy
Class
Ray-finned fishes
Actinopterygii
Order
Salmons and trouts
Salmoniformes
Family
Salmons, trouts, chars, and whitefish
Salmonidae
Genus
Thymallus
Thymallus
Species
Thymallus Yaluensis
Thymallus yaluensis
🐟 Physical Description
Dorsal spines (total): 0; Dorsal soft rays (total): 21 - 22; Anal spines: 0; Anal soft rays: 12 - 13. : fusiform / normal.
🌀 Behaviour
Behavioural data for Thymallus Yaluensis 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 the upper reaches of Yalu River, Korea.
🌿 Ecology
Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.4
📐 Morphometrics
Length–Weight Relationship:
W = 0.00832 × L3.07
(TL)
Max TL
20cm
Dorsal Rays
22
Anal Rays
13
🌡️ Water Parameters & Tolerance
Salinity Range
0–0.5ppt
📊 Population Risk & Fisheries
Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Mori, 1928
🔍 Similar Species
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