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🌊 Marine Data Deficient 🌡️ Temperate

Nemamyxine Elongata

Nemamyxine elongata Richardson, 1958
Max Length
61.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Temperate
Resilience
Low
Vulnerability
50.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Nemamyxine Elongata (Nemamyxine elongata), first described by Richardson, 1958 is a large fish in the family Myxinidae (order Myxiniformes). Adults typically reach 61.40 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Temperate waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Data Deficient.

Scientific Name
Nemamyxine elongata
Authority
Richardson, 1958
Habitat
Marine
Climate
Temperate
IUCN Status
DD
Max Length
61.4 cm
Trophic Level
3.4
Resilience
Low
Vulnerability
50.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🐟 Physical Description

: eel-like.

🌀 Behaviour

Behavioural data for Nemamyxine Elongata 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; demersal; non-migratory. Temperate Southwest Pacific: New Zealand.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.4±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.00115 × L3.03 (TL)
Max TL
61.4cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
50.00/100
Moderate-High vulnerability
Trophic Level
3.4
Predator
Climate Zone
Temperate
Described By
Richardson, 1958

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