Largenose grenadier (Coryphaenoides nasutus) fish species and information / pictures of Largenose grenadier - Coryphaenoides nasutus

Largenose grenadier (Coryphaenoides nasutus) fish species information

Scientific Name
Coryphaenoides nasutus

Common Name
Largenose grenadier

Biology
Dorsal spines (total): 2; Anal spines: 0. Head almost completely scaled except for underside of snout. Snout short, pointed, with a large conical tubular scale at its tip and smaller tubercles at its lateral angles; suborbital ridge prominent; mouth small, its rictus restricted posteriorly by lip folds. Body scales with long, appressed spinules in convergent rows, except those on nape and chest, which are arranged in divergent rows. Pyloric caeca 8 to 12. Ground color somewhat tawny; oral cavity grayish; branchial cavity blackish; orbital rims blackish; fins dusky, darker distally.

Classification

Classified By
G?nther, 1877
Class
Ray-finned fishes (Actinopterygii)
Order
Cods (Gadiformes)
Family
Grenadiers or rattails (Macrouridae)

Distribution

Region
Northwest Pacific
Distribution
Northwest Pacific: northern Japan to East China Sea.
Range
48°N - 24°N, 120°E - 155°E

Environment

Climate
Deep-water
Water Temperature From
2 °C
Water Temperature To
5 °C
Depth From - meters
625 m
Depth To - meters
1180 m
Zone
bathydemersal
Environment
Marine; bathydemersal; non-migratory; depth range 625 - 1180 m (Ref. 1371)
Trophic Level
3.56 s.e. 0.46 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
47.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: minor commercial
Vulnerability
Moderate to high vulnerability (50 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
  Least Concern (LC)