Twelve-rayed grenadier (Nezumia duodecim) fish species and information / pictures of Twelve-rayed grenadier - Nezumia duodecim

Twelve-rayed grenadier (Nezumia duodecim) fish species information

Scientific Name
Nezumia duodecim

Common Name
Twelve-rayed grenadier

Biology
Dorsal spines (total): 2; Anal spines: 0. Ventral leading edge of snout and narrow ventromedian strip on underside naked, head otherwise completely scaled. Scales deciduous, with small, short, conical spinules in 6 to 9 parallel rows. Overall color is brownish to bluish; trunk bluish to blackish; fins blackish; mouth dusky; gill cavities blackish.

Classification

Classified By

Iwamoto, 1970

Class

Ray-finned fishes (Actinopterygii)

Order

Cods (Gadiformes)

Family

Grenadiers or rattails (Macrouridae)

Distribution

Region

Southeast Atlantic

Distribution

Southeast Atlantic: southernly into the Gulf of Guinea to Angola.

Range

25°N - 18°S, 22°W - 13°E

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

329 m

Depth To - meters

1261 m

Zone

bathydemersal

Environment

Marine; bathydemersal; non-migratory; depth range 329 - 1261 m (Ref. 1371), usually 400 - 500 m (Ref. 1371)

Trophic Level

3.47 s.e. 0.45 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

25.0 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

Low to moderate vulnerability (32 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