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Longnose sawshark (Pristiophorus cirratus) fish species and information / pictures of Longnose sawshark - Pristiophorus cirratus

Longnose sawshark (Pristiophorus cirratus) fish species information

Scientific Name
Pristiophorus cirratus

Common Name
Longnose sawshark

Biology
Found on the continental shelf and upper slope. Forms schools. Feeds on small fishes, including cornet fishes (Fistularia), and crustaceans. Ovoviviparous, with 3-22 young in a litter (48360). Size at birth about 31-34 cm. May live for more than 15 years. Utilized fresh and frozen; meat of excellent quality.

Classification

Classified By

Latham, 1794

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Billfishes (Istiophoridae)

Distribution

Region

Eastern Indian Ocean

Distribution

Eastern Indian Ocean: southern Australia (Ref. 6871). Does not occur in the Western Central Pacific (Ref. 31368).

Range

20°S - 41°S, 112°E - 150°E

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

37 m

Depth To - meters

310 m

Zone

demersal

Environment

Marine; demersal; depth range 37 - 310 m (Ref. 6871), usually 37 - 146 m (Ref. 54709)

Trophic Level

4.17 s.e. 0.71 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

137 cm

Common Length

125 cm

Phylogenetic Diversity Index

PD50 = 0.5312 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial

Vulnerability

High vulnerability (60 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (Fec=3)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)