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💧 Freshwater Near Threatened 🌡️ Temperate

Cottus Metae

Cottus metae Freyhof, Kottelat & Nolte, 2005
Max Length
9.7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
33.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Inhabits small streams to medium-sized rivers. Attains first sexual maturity at 2-4 years. Spawns in March-April .

Scientific Name
Cottus metae
Authority
Freyhof, Kottelat & Nolte, 2005
Habitat
Freshwater
Climate
Temperate
IUCN Status
NT
Max Length
9.7 cm
Trophic Level
3.3
Resilience
Medium
Vulnerability
33.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Anal soft rays: 12 - 13. Can be distinguished from other species of Cottus in the Adriatic basin and Danube drainage by the combination of the following characters; no distinct transverse bands on pelvic fin; prickling on body under pectoral fin, very rarely present shortly behind pectoral fin; depth of caudal peduncle 25-31% HL, 1.0-1.7 times in its length; body depth at origin of second dorsal fin 17-23% SL; interorbital distance 0.7-1.4 times in eye diameter; 15-16 1/2 rays in second dorsal fin; 12-13 1/2 anal-fin rays; last anal-fin ray connected to body by a membrane along 1/3-1/2 of its length; no membrane attaching pelvic-fin base to body; membrane of first dorsal fin usually not reaching origin of second dorsal fin in females; dorsal head length 21-25% SL; predorsal length 35-40% SL; distance from tip to snout to origin of second dorsal fin 54-59% SL .

🌀 Behaviour

Behavioural data for Cottus Metae 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. Temperate

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00832 × L3.16 (TL)
Max TL
9.7cm
Anal Rays
13

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
33.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Temperate
Described By
Freyhof, Kottelat & Nolte, 2005

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