Armourhead grenadier (Trachyrincus helolepis) fish species and information / pictures of Armourhead grenadier - Trachyrincus helolepis

Armourhead grenadier (Trachyrincus helolepis) fish species information

Scientific Name
Trachyrincus helolepis

Common Name
Armourhead grenadier

Biology
Dorsal spines (total): 0; Anal spines: 0. Snout narrow and long. Scute-like scales along the dorsal and anal fins usually with a single, sharply pointed keel. Row of enlarged scute-like scales along the base of the anal fin not reaching anus. Scales moderately embedded. Overall color is medium brown.

Classification

Classified By

Gilbert, 1892

Class

Ray-finned fishes (Actinopterygii)

Order

Cods (Gadiformes)

Family

Grenadiers or rattails (Macrouridae)

Distribution

Region

Southeast Pacific

Distribution

Southeast Pacific: Galapagos Islands and Chile.

Range

3°N - 34°S, 95°W - 72°W

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

580 m

Depth To - meters

960 m

Zone

bathydemersal

Environment

Marine; bathydemersal; non-migratory; depth range 580 - 960 m (Ref. 1371)

Trophic Level

3.47 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

46.0 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: of no interest

Vulnerability

Moderate to high vulnerability (48 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