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🌊 Marine 🌡️ Tropical

Spotted hardyhead

Craterocephalus mugiloides McCulloch, 1912
Max Length
7 cm
Max Weight
-
Lifespan
-
Trophic Level
2.8
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
19.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Mainly coastal and estuarine, often schooling with C. capreoli, Atherinomorus endrachtensis and A. ogilbyi. Diet includes crustaceans and diatoms. Breeds from December to March throughout the southern hemisphere. Appears to have a one year life span. May be food fish for larger commercially important fishes.

Scientific Name
Craterocephalus mugiloides
Authority
McCulloch, 1912
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
Max Length
7 cm
Trophic Level
2.8
Resilience
High
Vulnerability
19.00/100
Salinity
30–40 ppt

🐟 Physical Description

Anal spines: 1. Labial ligament inserting adjacent to symphysis of dentary. Lateral process of premaxilla pungent. Gill rakers on first lower gill arch, 13-17. Body scales on large specimens usually crenulated, midlateral scales 33-37. Black spot often present at base of pectoral fin.: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Spotted hardyhead is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; brackish; pelagic-neritic. Tropical; 11°S - 21°S Central Pacific: northern Australia, from Western Australia to Fraser Island, around the islands of the Gulf of Carpentaria, and northeast Queensland.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🐟 Pelagic
Trophic Level
2.8±0.36
🐠 Schooling

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
7cm
Anal Spines
1

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
19.00/100
Low vulnerability
Trophic Level
2.8
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Described By
McCulloch, 1912

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