Andriyashev largeheaded sculpin (Andriashevicottus megacephalus) fish species and information / pictures of Andriyashev largeheaded sculpin - Andriashevicottus megacephalus

Andriyashev largeheaded sculpin (Andriashevicottus megacephalus) fish species information

Scientific Name
Andriashevicottus megacephalus

Common Name
Andriyashev largeheaded sculpin

Biology
Dorsal spines (total): 9; Dorsal soft rays (total): 20; Anal soft rays: 13; Vertebrae: 40. Head large; subopercle spines 4, upper one is largest, bent upward, forked; no spines and crests on occiput; scales on the head in dorsal view stretch forward along the interorbital space to the anterior margin of the eye; in lateral view, scales drop to the level of the lower posterior margin of the eye, the suborbital support and upper preopercular spine; body scales below the base of dorsal spine in the form of a band with irregular diagonal rows, in a row along the lateral line and in a spot under the pectoral fin behind the upper margin of its base. 2 nostrils; branchiostegal membranes united and free of isthmus; well developed pseudobranch; a small opening behind the 4th gill arch (Ref. 41742).

Classification

Classified By
Fedorov, 1990
Class
Ray-finned fishes (Actinopterygii)
Order
Scorpionfishes and Flatheads (Scorpaeniformes)
Family
Sculpins (Cottidae)

Distribution

Region
Northwest Pacific
Distribution
Northwest Pacific: known only from the holotype taken from off Simushir Island, Kuril Islands.
Range
Unknown

Environment

Climate
Boreal
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
100 m
Depth To - meters
100 m
Zone
demersal
Environment
Marine; demersal; depth range 100 - 100 m (Ref. 41742)
Trophic Level
3.46 s.e. 0.48 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
23.6 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
Unknown
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