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💧 Freshwater Least Concern 🌡️ Tropical

Magela hardyhead

Craterocephalus marianae Ivantsoff, Crowley & Allen, 1987
Max Length
7.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Inhabits fast-flowing, shallow creeks with sand or gravel bottoms. Forms large shoals. Feeds from the substrate on algae, microcrustaceans, aquatic insects and detritus Breeding is opportunistic, with peak activity early in the wet season .

Scientific Name
Craterocephalus marianae
Authority
Ivantsoff, Crowley & Allen, 1987
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
7.5 cm
Trophic Level
3
Resilience
High
Vulnerability
25.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Magela hardyhead is currently being compiled.

🌀 Behaviour

Behavioural data for Magela hardyhead 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. Tropical; 12°S - 14°S

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
7.5cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
3
Predator
Climate Zone
Tropical
Described By
Ivantsoff, Crowley & Allen, 1987

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Magela Hardyhead · Mariana's Hardyhead
🌍CES gavún Marianin

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 5 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Magela hardyhead ↗
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