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Dwarf sawfish (Pristis clavata) fish species and information / pictures of Dwarf sawfish - Pristis clavata

Dwarf sawfish (Pristis clavata) fish species information

Scientific Name
Pristis clavata

Common Name
Dwarf sawfish

Biology
Greenish brown, rarely yellowish; white ventrally; fins paler. Body shark-like, pectoral fins distinct; head flattened, with a blade-like snout bearing 18-22 pairs of lateral teeth; blade broad, not tapering distally. Nostrils broad with large nasal flaps. Rostral teeth slender, with a groove along posterior margins; teeth reaching basal quarter of blade. Skin with denticles.

Classification

Classified By
Garman, 1906
Class
Sharks and Rays (Elasmobranchii)
Order
Sawfishes (Pristiformes)
Family
Sawfishes (Pristidae)

Distribution

Region
Indo-West Pacific
Distribution
Indo-West Pacific: tropical Australia, possibly more widely distributed. A nominal record from the Canary Islands may not be this species, but the sketchily known Pristis pristis from the eastern Atlantic is similar and needs comparison to determine if the two species are distinct.
Range
10°S - 22°S, 125°E - 149°E

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
0 m
Depth To - meters
Unknown m
Zone
demersal
Environment
Marine; brackish; demersal; depth range 0 - ? m
Trophic Level
3.7 s.e. 0.55 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
False
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
140 cm
Common Length
Unknown 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
Unknown
Vulnerability
Moderate to high vulnerability (50 of 100)
Resilience
Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be
Threat To Humans
  Harmless
IUCN Red List Status
  Critically Endangered (CR) (A2bcd+3cd+4bcd)