Thumb grenadier (Nezumia pulchella) fish species and information / pictures of Thumb grenadier - Nezumia pulchella

Thumb grenadier (Nezumia pulchella) fish species information

Scientific Name
Nezumia pulchella

Common Name
Thumb grenadier

Biology
Dorsal spines (total): 2; Anal spines: 0. Snout rather narrow, bluntly pointed; terminal scute well-developed; ventral surface of the upper leading margin of the snout, underside of suborbital, mandible, lower edge of the preopercle and gill membranes without scales. Pyloric caeca 23 to 31. Body scales densely covered with conical spinules arranged in parallel to slightly converging rows. Overall color swarthy to medium brown, blackish ventrally, with bluish tinge over the abdomen; oral and gill cavities generally pale but blackish around margin of latter; fins dusky to blackish, first dorsal fin darker distally.

Classification

Classified By
Peque?o, 1971
Class
Ray-finned fishes (Actinopterygii)
Order
Cods (Gadiformes)
Family
Grenadiers or rattails (Macrouridae)

Distribution

Region
Southeast Pacific
Distribution
Southeast Pacific: northern Peru to central Chile.
Range
7°S - 34°S, 83°W - 70°W

Environment

Climate
Deep-water
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
250 m
Depth To - meters
960 m
Zone
bathydemersal
Environment
Marine; bathydemersal; non-migratory; depth range 250 - 960 m (Ref. 1371)
Trophic Level
3.32 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
30.0 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 vulnerability (36 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