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Diadromous Critically Endangered 🌡️ Subtropical

Common sawfish

Pristis pristis Linnaeus, 1758
Max Length
750 cm
Max Weight
-
Lifespan
30 yrs
Trophic Level
4
Depth
-
Climate
Subtropical
Resilience
Low
Vulnerability
79.00/100
Typical Length
250 cm
Depth Zone
demersal

📖 Overview

A euryhaline species . 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 . Freshwater populations occur to about 750 km up Amazon River; populations in Lake Nicaragua may be non-migratory . Reaches sexual maturity at 8-10 years and females have litters of approximately 1-13 pups. Young spend much of their early life in rivers up to 400 km from the sea .

Scientific Name
Pristis pristis
Authority
Linnaeus, 1758
Habitat
Diadromous
Climate
Subtropical
Body Shape
Elongated
IUCN Status
CR
Max Length
750 cm
Lifespan
30 years
Latitude
40°S – 35°N
Trophic Level
4
Resilience
Low
Vulnerability
79.00/100
Migration
Oceanodromous
Salinity
30–40 ppt

🐟 Physical Description

Diagnosis: Rostral blade with 20 or fewer pairs of rostral spines . : elongated.

🌀 Behaviour

Behavioural data for Common sawfish is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Ovoviviparous
Size at Maturity
300cm TL

Ovoviviparous, embryos feed solely on yolk .

🌍 Habitat & Distribution

Marine; freshwater; brackish; demersal; oceanodromous ; depth range 25 - ? m . Subtropical; 35°N - 40°S, 120°W - 160°E West Africa (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish ⬇️ Benthic
Migration
Oceanodromous
Trophic Level
4±0.6
Food Items

fishes and bottom-living animals

📐 Morphometrics

Length–Weight Relationship: W = 0.00501 × L3.05 (TL)
Max TL
750cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2022

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
79.00/100
Very High vulnerability
Trophic Level
4
Apex / Top predator
Body Shape
Elongated
Climate Zone
Subtropical
Latitude Range
35°N – 40°S
Described By
Linnaeus, 1758

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Pristis antiquorum Latham 1794 Synonym
Pristis canaliculata Bloch & Schneider 1801 Synonym
Pristis caniculata Bloch & Schneider 1801 Synonym
Pristis mississippiensis Rafinesque 1820 Heterotypic
Pristis perotteti Valenciennes 1841 Synonym
Pristis typica Poey 1861 Synonym
Pristis woermanni Fischer 1884 Synonym
Squalus pristis Linnaeus 1758 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 16 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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