California grenadier (Nezumia stelgidolepis) fish species and information / pictures of California grenadier - Nezumia stelgidolepis

California grenadier (Nezumia stelgidolepis) fish species information

Scientific Name
Nezumia stelgidolepis

Common Name
California grenadier

Biology
Dorsal spines (total): 2; Anal spines: 0. Snout short, narrow, bluntly pointed; terminal snout scute developed but not conspicuously; suborbital ridge low; underside of snout, most of the suborbital region, and anterior half of mandible without scales; cephalic pores of the lateralis system prominent. Pyloric caeca 24 to 58. Body scales densely covered with conical to narrowly lanceolate spinules in short, slightly convergent rows. Overall color is swarthy, blackish ventrally, with bluish tinge on abdominal region; oral and branchial cavities generally pale with some blackish areas; fins dusky to blackish, first dorsal fin slightly paler basally.

Classification

Classified By
Gilbert, 1890
Class
Ray-finned fishes (Actinopterygii)
Order
Cods (Gadiformes)
Family
Grenadiers or rattails (Macrouridae)

Distribution

Region
Eastern Pacific
Distribution
Eastern Pacific: off Vancouver Island, Canada to southern Peru.
Range
49°N - 16°S, 130°W - 76°W

Environment

Climate
Deep-water
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
277 m
Depth To - meters
909 m
Zone
bathydemersal
Environment
Marine; bathydemersal; non-migratory; depth range 277 - 909 m (Ref. 1371)
Trophic Level
4.4 s.e. 0.80 Based on food items.
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
45.0 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 (48 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.20)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated