Longcomb sawfish (Pristis zijsron) fish species and Longcomb sawfish information

Scientific Name
Pristis zijsron

Common Name
Longcomb sawfish

Biology
Inshore and intertidal species known to enter freshwater in some areas (Ref. 9859). Found in shallow bays, estuaries, and lagoons (Ref. 11228). Often on the bottom with its saw elevated at an angle to the body axis (Ref. 9859). Feeds on fishes and shellfishes (Ref. 58784). Ovoviviparous (Ref. 50449). Flesh considered tasty (Ref. 11228).

Classification

Classified By

Bleeker, 1851

Class

Sharks and Rays (Elasmobranchii)

Order

Sawfishes (Pristiformes)

Family

Sawfishes (Pristidae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: Red Sea and East Africa to Papua New Guinea, north to southern China, south to New South Wales, Australia.

Range

30°N - 37°S, 25°E - 155°E

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

5 m

Zone

demersal

Environment

Marine; freshwater; brackish; demersal; depth range 0 - 5 m (Ref. 9859)

Trophic Level

3.97 s.e. 0.59 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

730 cm

Common Length

550 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; gamefish: yes

Vulnerability

Very high vulnerability (86 of 100)

Resilience

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

Threat To Humans

Traumatogenic (Ref. 9859)

IUCN Red List Status

Critically Endangered (CR) (A2bcd+3cd+4bcd)

Longcomb sawfish (Pristis zijsron) fish species and information / pictures of Longcomb sawfish - Pristis zijsron

Longcomb sawfish (Pristis zijsron) fish species information

Classification

Distribution

Environment

Physical Size and Genetics

Human Uses and Population