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Common sawfish (Pristis pristis) fish species and information / pictures of Common sawfish - Pristis pristis

Common sawfish (Pristis pristis) fish species information

Scientific Name
Pristis pristis

Common Name
Common sawfish

Biology
A euryhaline species (Ref. 57533). Inhabits inshore coastal waters to moderate depth, also around off lying islands. Found also in estuaries, lagoons, river mouths, and even freshwater. Feeds on fishes and bottom-living animals. Ovoviviparous. Apparently can reproduce in freshwater (Ref. 57533). Freshwater populations occur to about 750 km up Amazon River; populations in Lake Nicaragua may be non-migratory (Ref. 7251).

Classification

Classified By
Linnaeus, 1758
Class
Sharks and Rays (Elasmobranchii)
Order
Sawfishes (Pristiformes)
Family
Sawfishes (Pristidae)

Distribution

Region
Western Pacific
Distribution
Western Pacific: northern Australia, from Western Australia to Queensland (Ref. 7300). Eastern Pacific: Gulf of California to Ecuador. Western Atlantic: Florida and Louisiana, USA to Brazil (Ref. 7251). Eastern Atlantic: Portugal to Angola, including the western Mediterranean.
Range
45°N - 17°S

Environment

Climate
Subtropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
demersal
Environment
Marine; freshwater; brackish; demersal; oceanodromous (Ref. 51243)
Trophic Level
3.97 s.e. 0.60 Based on food items.
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
750 cm
Common Length
250 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: minor commercial
Vulnerability
Very high vulnerability (75 of 100)
Resilience
Low, minimum population doubling time 4.5 - 14 years (tmax=30; Fec assumed to be
Threat To Humans
  Harmless
IUCN Red List Status
  Critically Endangered (CR) (A2abc+3cd)