Grey grenadier (Trachyrincus villegai) fish species and information / pictures of Grey grenadier - Trachyrincus villegai

Grey grenadier (Trachyrincus villegai) fish species information

Scientific Name
Trachyrincus villegai

Common Name
Grey grenadier

Biology
Dorsal spines (total): 0; Anal spines: 0. Snout long, sharply pointed, broad in juveniles becoming narrower and relatively long in adults. Scute-like scales bluntly pointed and denticulate; scales deeply embedded and covered with thick skin, the margins obscure. Row of enlarged scute-like scales along the base of the anal fin does not extend forward of anus. Overall color is grayish.

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

5°S - 30°S, 85°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

980 m

Zone

bathydemersal

Environment

Marine; bathydemersal; non-migratory; depth range 250 - 980 m (Ref. 1371)

Trophic Level

3.46 s.e. 0.50 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

44.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5156 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 (47 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