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💧 Freshwater Endangered 🌡️ Tropical

Red-wing fish

Distoechodon macrophthalmus Zhao, Kullander, Kullander & Zhang, 2009
Max Length
20 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
33.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Before the 1990s, this species was a very important component of the local fishery. Its population is shrinking quickly. No adult specimen was found during the 2004 field survey. The primary threat might be the introduction of icefishes (Family Salangidae) based on survey conducted .

Scientific Name
Distoechodon macrophthalmus
Authority
Zhao, Kullander, Kullander & Zhang, 2009
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
EN
Max Length
20 cm
Trophic Level
3.2
Resilience
Medium
Vulnerability
33.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 10; Anal soft rays: 12. Differs from all its congeners in having the highest number of lateral line scales (78-85, mostly 82), more pre-dorsal scales (34-39, mostly 36), and relatively bigger eye, being 7.97% vs. 6.37-6.98% in SL. Similar to Distoechodon multispinnis in having higher lateral line and predorsal scale counts, but can be easily distinguished by having larger eyes at the same body size . : elongated.

🌀 Behaviour

Behavioural data for Red-wing fish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical known only from the Chenhai Lake, Chang Jiang basin in Yunnan Province, China.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00631 × L3.07 (TL)
Max TL
20cm
Dorsal Rays
10
Anal Rays
12

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2022

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
33.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Zhao, Kullander, Kullander & Zhang, 2009

🦠 Common Diseases

The following diseases are known to affect Red-wing fish.

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