Doublethread grenadier (Gadomus arcuatus) fish species and information / pictures of Doublethread grenadier - Gadomus arcuatus

Doublethread grenadier (Gadomus arcuatus) fish species information

Scientific Name
Gadomus arcuatus

Common Name
Doublethread grenadier

Biology
Head bones and integument are relatively tough; eyes are of moderate size; chin barbels are long and prominent; adults over 30 cm have a pronounced hump-back appearance; caudal fin is absent; the first fin rays of the dorsal pectoral and pelvic fins are very elongated; body color is generally brownish; the fin membranes, mouth and gill chamber blackish (Ref. 1371). This species does not have light organs (Ref. 6187).

Classification

Classified By

Goode & Bean, 1886

Class

Ray-finned fishes (Actinopterygii)

Order

Cods (Gadiformes)

Family

Grenadiers or rattails (Macrouridae)

Distribution

Region

Central Atlantic

Distribution

Central Atlantic: Western Central Atlantic: Gulf of Mexico, Caribbean, and northeastern coast of South America. Eastern Atlantic: Morocco, Canary Islands, Azores and Portugal (Ref. 3587).

Range

37°N - 35°S, 98°W - 6°W

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

610 m

Depth To - meters

1370 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; non-migratory; depth range 610 - 1370 m (Ref. 3587)

Trophic Level

3.11 s.e. 0.14 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

58.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5001 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

High vulnerability (55 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated