Filetail catshark (Parmaturus xaniurus) fish species and information / pictures of Filetail catshark - Parmaturus xaniurus

Filetail catshark (Parmaturus xaniurus) fish species information

Scientific Name
Parmaturus xaniurus

Common Name
Filetail catshark

Biology
Found on the outer continental shelf and upper slope. Feeds on a variety of small fish (e.g. lanternfish) and invertebrates. Oviparous. Possesses an enlarged gill region which is an adaptation to areas with low dissolved oxygen levels. Has a high concentration of squalene in its liver which affords it neutral buoyancy. Regularly caught by bottom trawlers but not utilized at all.

Classification

Classified By

Gilbert, 1892

Class

Sharks and Rays (Elasmobranchii)

Order

Ground sharks (Carcharhiniformes)

Family

Cat sharks (Scyliorhinidae)

Distribution

Region

Eastern Central Pacific

Distribution

Eastern Central Pacific: central California, USA to the Gulf of California.

Range

39°N - 20°N

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

91 m

Depth To - meters

1251 m

Zone

demersal

Environment

Marine; demersal; depth range 91 - 1251 m

Trophic Level

3.78 s.e. 0.59 Based on diet studies.

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

45.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5020 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

Low to moderate vulnerability (32 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be

Threat To Humans

Harmless

IUCN Red List Status

Data deficient (DD)