Bony-eared assfish (Acanthonus armatus) fish species and information / pictures of Bony-eared assfish - Acanthonus armatus

Bony-eared assfish (Acanthonus armatus) fish species information

Scientific Name
Acanthonus armatus

Common Name
Bony-eared assfish

Biology
Head large and body tapering. Snout with prominent, bifid spine. Opercular spine long and slender extending well beyond rear margin of head. Well developed spines at lower angle of preopercle. Eye small. Anterior gill arch with 16-22 developed rakers. Precaudal vertebrae 9-10.

Classification

Classified By
G?nther, 1878
Class
Ray-finned fishes (Actinopterygii)
Order
Cusk eels (Ophidiiformes)
Family
Cusk-eels (Ophidiidae)

Distribution

Region
In deep waters off tropical and subtropical areas of all oceans. Especially abundant in the tropical western Atlantic (Ref. 3686). Reported from Carlsberg Ridge (6?22'N 60?12'E) and New Guinea (Ref. 33390). Known from Gulf of Mexico, Caribbean Sea, southern India, Philippines, Gulf of Panama and tropical west Africa (Ref. 44076).
Distribution
In deep waters off tropical and subtropical areas of all oceans. Especially abundant in the tropical western Atlantic (Ref. 3686). Reported from Carlsberg Ridge (6?22'N 60?12'E) and New Guinea (Ref. 33390). Known from Gulf of Mexico, Caribbean Sea, southern India, Philippines, Gulf of Panama and tropical west Africa (Ref. 44076).
Range
36°N - 23°S, 81°W - 154°E

Environment

Climate
Deep-water
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
1171 m
Depth To - meters
4415 m
Zone
bathyalpelagic
Environment
Marine; bathypelagic; depth range 1171 - 4415 m (Ref. 75877)
Trophic Level
3.62 s.e. 0.60 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
37.5 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: of no interest
Vulnerability
Moderate vulnerability (42 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated