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💧 Freshwater Endangered 🌡️ Temperate

Golden Galaxias

Galaxias auratus Johnston, 1883
Max Length
24 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
30.00/100
Typical Length
15 cm
Depth Zone
-

📖 Overview

Facultative air-breathing in the genus ; Lives in rocky areas and vegetated margins of lakes and streams , primarily in lakes preferring still or gently flowing waters . Adults prefer the shelter provided by complex habitats such as rocky lake shores and also in-lake macrophytes beds and marsh habitats . Juveniles occur in the water column until 4-5 months of age (40 mm in length) and then move inshore seeking shelter and larger prey items . Shoaling in open water when young . Feeds on insects, insect larvae and crustaceans and mollusks with cannibalism of eggs and juvenile fish being common . Breeds in early spring among rocks in the shallows . Most fish live for 3-4 years with some reaching over 6 years of age .

Scientific Name
Galaxias auratus
Authority
Johnston, 1883
Habitat
Freshwater
Climate
Temperate
IUCN Status
EN
Max Length
24 cm
Trophic Level
3.3
Resilience
Medium
Vulnerability
30.00/100
Water Temp
10–28 °C
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Golden Galaxias is currently being compiled.

🌀 Behaviour

Behavioural data for Golden Galaxias 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; 10°C - 28°C Central Plateau of Tasmania in Lake Sorell, Lake Crescent, a tributary of Lake Crescent at Interlaken, and Clyde River, which is the outflow of Lake Crescent.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.3±0.44
Food Items

insects, insect larvae and crustaceans (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.0049 × L3.12 (TL)
Max TL
24cm

🌡️ Water Parameters & Tolerance

Temperature Range
10–28°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
30.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Temperate
Described By
Johnston, 1883

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