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🌊 Marine Least Concern 🌡️ Deep-water

Hawaiian halosaurid fish

Aldrovandia phalacra Vaillant, 1888
Max Length
50 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
500–2300 m
Climate
Deep-water
Resilience
Low
Vulnerability
41.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Found between 530-2321 m, associated with islands and continental slopes . Found at bathyal to abyssal depths. Feeds on amphipods, mysids, copepods and polychaetes. Sexually dimorphic, maturing males have enlarged nostrils, anterior nostrils are black and tubular. Females outnumber males 4:1 in western North Atlantic.

Scientific Name
Aldrovandia phalacra
Authority
Vaillant, 1888
Habitat
Marine
Climate
Deep-water
IUCN Status
LC
Max Length
50 cm
Depth Range
500–2300 m
Trophic Level
3.2
Resilience
Low
Vulnerability
41.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 1; Dorsal soft rays (total): 9 - 11. Body light grey in color; head silvery blue on top and sides, darker below and on gill covers . Lack of scales on the dorsal surface of the head and short maxillary spine .: eel-like.

🌀 Behaviour

Behavioural data for Hawaiian halosaurid fish is currently being reviewed.

🦐 Diet

Diet information for Hawaiian halosaurid fish is currently being compiled.

🥚 Reproduction

Reproduction data for Hawaiian halosaurid fish is currently being compiled.

🌍 Habitat & Distribution

Marine; benthopelagic; depth range 500 - 2300 m . Deep-water South Africa.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.2±0.34
Food Items

amphipods, mysids, copepods and polychaetes

📐 Morphometrics

Length–Weight Relationship: W = 0.00087 × L3.07 (TL)
Max TL
50cm
Dorsal Spines
1
Dorsal Rays
10

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
41.00/100
Moderate vulnerability
Trophic Level
3.2
Predator
Climate Zone
Deep-water
Described By
Vaillant, 1888

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Aldrovandia kauaiensis Gilbert 1905 Synonym
Halosaurichthys nigerrimus Alcock 1898 Synonym
Halosauropsis kauaiensis Gilbert 1905 Synonym
Halosauropsis verticalis Gilbert 1905 Synonym
Halosaurus phalacrus Vaillant 1888 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 20 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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