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🌊 Marine Least Concern 🌡️ Deep-water

White-headed hagfish

Myxine ios Fernholm, 1981
Max Length
57 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
614–1625 m
Climate
Deep-water
Resilience
Low
Vulnerability
48.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Scavengers which are found on muddy bottoms; feed largely on dead or disabled fish by boring into its skin. Eggs are few and large (20-30 mm).

Scientific Name
Myxine ios
Authority
Fernholm, 1981
Habitat
Marine
Climate
Deep-water
IUCN Status
LC
Max Length
57 cm
Depth Range
614–1625 m
Trophic Level
3.3
Resilience
Low
Vulnerability
48.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

: eel-like.

🌀 Behaviour

Behavioural data for White-headed hagfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

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

Copulatory organ absent. The gonads of hagfishes are situated in the peritoneal cavity. The ovary is found in the anterior portion of the gonad, and the testis is found in the posterior part. The animal becomes female if the cranial part of the gonad develops or male if the caudal part undergoes differentiation. If none develops, then the animal becomes sterile. If both anterior and posterior parts develop, then the animal becomes a functional hermaphrodite. However, hermaphroditism being characterised as functional needs to be validated by more reproduction studies .

🌍 Habitat & Distribution

Marine; bathydemersal; non-migratory; depth range 614 - 1625 m . Deep-water; 67°N - 21°N southwest off Ireland and Iceland, off Western Sahara.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Migration
Non-migratory
Trophic Level
3.3±0.56

📐 Morphometrics

Length–Weight Relationship: W = 0.00115 × L3.03 (TL)
Max TL
57cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
48.00/100
Moderate-High vulnerability
Trophic Level
3.3
Predator
Climate Zone
Deep-water
Described By
Fernholm, 1981

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 8 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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