Spectacled grenadier (Nezumia orbitalis) fish species and information / pictures of Spectacled grenadier - Nezumia orbitalis

Spectacled grenadier (Nezumia orbitalis) fish species information

Scientific Name
Nezumia orbitalis

Common Name
Spectacled grenadier

Biology
Dorsal spines (total): 2; Anal spines: 0. Snout short, conical, with small, stout terminal scute; ventral surface of the snout and suborbital region mostly bare; mandibular rami with loose scales along the midline of each ramus; cephalic pores of the lateralis system indistinct. Pyloric caeca 17 to 23. Body scales fairly large with conical to narrowly lanceolate spinules in as many as 15 convergent rows. Overall color is reddish brown, abdominal region bluish black; orbit ringed black; oral and branchial cavities blackish; fins light, first dorsal fin black distally.

Classification

Classified By
Garman, 1899
Class
Ray-finned fishes (Actinopterygii)
Order
Cods (Gadiformes)
Family
Grenadiers or rattails (Macrouridae)

Distribution

Region
Eastern Pacific
Distribution
Eastern Pacific: Gulf of Panama to northern Peru, including the Galapagos Islands.
Range
8°N - 10°S, 90°W - 78°W

Environment

Climate
Deep-water
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
523 m
Depth To - meters
800 m
Zone
bathydemersal
Environment
Marine; bathydemersal; non-migratory; depth range 523 - 800 m (Ref. 1371)
Trophic Level
3.27 s.e. 0.43 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
20.0 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
Low to moderate vulnerability (28 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