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🌊 Marine Least Concern 🌡️ Deep-water

Abyssal halosaur

Halosauropsis macrochir Günther, 1878
Max Length
90 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
1100–3300 m
Climate
Deep-water
Resilience
Low
Vulnerability
41.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Found on the lower slope, continental rise and upper abyss, primarily between 4° and 2°C isotherms. Feeds on polychaetes, crustaceans, echinoderms and echiurids. Hovers above or rests on bottom. Long slender pectorals are commonly held erect pointing upward and forward, these may serve a sensory function .

Scientific Name
Halosauropsis macrochir
Authority
Günther, 1878
Habitat
Marine
Climate
Deep-water
IUCN Status
LC
Max Length
90 cm
Depth Range
1100–3300 m
Latitude
47°S – 50°N
Trophic Level
3.3
Resilience
Low
Vulnerability
41.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 11 - 13. Body greyish-black to bluish black in color; top of head, gill isthmus and branchiostegal membranes black . Deeply pigmented sheath of lateral line. Absence of scales on the top of the head and presence of scales on the opercular bone .: eel-like.

🌀 Behaviour

Behavioural data for Abyssal halosaur 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; bathydemersal; depth range 1100 - 3300 m . Deep-water; 50°N - 47°S South Africa.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.3±0.36
Food Items

polychaetes, crustaceans, echinoderms and echiurids

📐 Morphometrics

Length–Weight Relationship: W = 0.00087 × L3.07 (TL)
Max TL
90cm
Dorsal Rays
12

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2013

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
41.00/100
Moderate vulnerability
Trophic Level
3.3
Predator
Climate Zone
Deep-water
Latitude Range
50°N – 47°S
Described By
Günther, 1878

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Aldrovandia macrochir Günther 1878 Synonym
Halosauropsis macrochira Günther 1878 Synonym
Halosaurus goodei Gill 1883 Synonym
Halosaurus macrochir Günther 1878 Synonym
Halosaurus niger Gilchrist 1906 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 22 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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