Australian tusk (Dannevigia tusca) fish species and information / pictures of Australian tusk - Dannevigia tusca

Australian tusk (Dannevigia tusca) fish species information

Scientific Name
Dannevigia tusca

Common Name
Australian tusk

Biology
Body robust, deepest over pectoral fins; several short, weak, concealed spines at lower angle of preopercle; spine on opercle barely if at all reaching beyond rear margin of head; eyes well developed; adults with no dark spots on body or fins; pelvic fin bases close together, inserting under rear margin of eye. Small specimens with 4 rather diffuse broad vertical brown bands on body; adults uniformly brown (Ref. 34024).

Classification

Classified By

Whitley, 1941

Class

Ray-finned fishes (Actinopterygii)

Order

Cusk eels (Ophidiiformes)

Family

Cusk-eels (Ophidiidae)

Distribution

Region

Eastern Indian Ocean

Distribution

Eastern Indian Ocean: Great Australian Bight, straying to Bass Straits (Australia).

Range

Unknown

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

115 m

Depth To - meters

400 m

Zone

benthopelagic

Environment

Marine; benthopelagic; depth range 115 - 400 m (Ref. 9563)

Trophic Level

3.66 s.e. 0.60 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

56.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 1.0000 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 (46 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