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💧 Freshwater Least Concern 🌡️ Temperate

Scaleless killifish

Kosswigichthys asquamatus Sözer, 1942
Max Length
4 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Temperate
Resilience
High
Vulnerability
19.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Scaleless killifish (Kosswigichthys asquamatus), first described by Sözer, 1942 is a tiny fish. Adults typically reach 4.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Temperate waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Kosswigichthys asquamatus
Authority
Sözer, 1942
Habitat
Freshwater
Climate
Temperate
IUCN Status
LC
Max Length
4 cm
Trophic Level
3
Resilience
High
Vulnerability
19.00/100
Migration
Non-migratory
Water Temp
10–25 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Kosswigichthys
Kosswigichthys
Species
Scaleless killifish
Kosswigichthys asquamatus

🐟 Physical Description

This species with three rows of conical teeth; a slightly upturned lower jaw; male without black or dark-brown bars in the caudal fin; no head canals; presence of a dermal sheath at the anal-fin base in the nuptial female; body naked .Cross section: oval.

🌀 Behaviour

Behavioural data for Scaleless killifish 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; non-migratory. Temperate; 10°C - 25°C ; 38°N - 37°N endemic to Lake Hazar).

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Non-migratory
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00832 × L3.31 (TL)
Max TL
4cm

🌡️ Water Parameters & Tolerance

Temperature Range
10–25°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2013

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
19.00/100
Low vulnerability
Trophic Level
3
Predator
Climate Zone
Temperate
Described By
Sözer, 1942

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