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💧 Freshwater Least Concern

Cox's gudgeon

Gobiomorphus coxii Krefft, 1864
Max Length
19 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
💧 Freshwater
Resilience
Medium
Vulnerability
31.00/100
Typical Length
15 cm
Depth Zone
demersal

📖 Overview

Populations appear more abundant in southern rivers, in flowing areas, including rapids . Adults are not found in lower reaches but individuals range upstream into areas of altitudes up to 700 m . Rarely found near to the sea . Individuals have been observed climbing dam walls using their pectorals, out of direct water flow . Adults feed on aquatic insects and mosquitofish. Juveniles generally found closer to the sea. During upstream migration these fish are capable of climbing waterfalls and steep dams. The female lays eggs on rocky surfaces and the male guards and fans the nest until hatching several days later .

Scientific Name
Gobiomorphus coxii
Authority
Krefft, 1864
Habitat
Freshwater
IUCN Status
LC
Max Length
19 cm
Trophic Level
3.4
Resilience
Medium
Vulnerability
31.00/100
Migration
Amphidromous
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Cox's gudgeon is currently being compiled.

🌀 Behaviour

Behavioural data for Cox's gudgeon is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal; amphidromous . High altitude southeast coast of Australia.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Amphidromous
Trophic Level
3.4±0.2
Food Items

aquatic insects and mosquitofish

📐 Morphometrics

Length–Weight Relationship: W = 0.00741 × L3.13 (TL)
Max TL
19cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
31.00/100
Low vulnerability
Trophic Level
3.4
Predator

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