Smalleye cusk (Didymothallus mizolepis) fish species and information / pictures of Smalleye cusk - Didymothallus mizolepis

Smalleye cusk (Didymothallus mizolepis) fish species information

Scientific Name
Didymothallus mizolepis

Common Name
Smalleye cusk

Biology
Dorsal soft rays (total): 78-97; Anal soft rays: 57 - 73; Vertebrae: 40 - 45. This species is distinguished by the following characters: D 78-97; A 57-73, V in D 2.2-2.6; vertebrae 12-13+28-32=40-45; one (outer) pseudoclasper wing-shaped with 2 slender, straight supporters, the posterior one is slightly longer and thicker than anterior one; straight penis; 4-6 rows of scales on upper part of cheek, 0-2 rows on lower part; anterior tip of otolith rounded, otolith with undivided long sulcus, its centre anterior of centre of otolith, not inclined, otolith length to height, 2.2-2.3, otolith length to sulcus length, 1.9-2.1 (Ref. 76869).

Classification

Classified By
G?nther, 1867
Class
Ray-finned fishes (Actinopterygii)
Order
Cusk eels (Ophidiiformes)
Family
Viviparous brotulas (Bythitidae)

Distribution

Region
Indo-West Pacific
Distribution
Indo-West Pacific: Australia.
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
reef-associated
Environment
Marine; reef-associated
Trophic Level
3.23 s.e. 0.52 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
True
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
5.1 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.6250 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
Low vulnerability (13 of 100)
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated