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Diadromous Vulnerable 🌡️ Tropical

Speartooth shark

Glyphis glyphis Müller & Henle, 1839
Max Length
100 cm
Max Weight
-
Lifespan
-
Trophic Level
4.2
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
60.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Found presumably inshore. Largest whole specimen collected was that of a female with maturity unknown, 175 cm TL. Large sets of jaws examined indicate that size can attain up to 2 m and possibly 3 m . Viviparous . Biology poorly known.

Scientific Name
Glyphis glyphis
Authority
Müller & Henle, 1839
Habitat
Diadromous
Climate
Tropical
IUCN Status
VU
Max Length
100 cm
Latitude
21°S – 5°N
Trophic Level
4.2
Resilience
Low
Vulnerability
60.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Glyphis
Glyphis
Species
Speartooth shark
Glyphis glyphis

🐟 Physical Description

Physical description for Speartooth shark is currently being compiled.

🌀 Behaviour

Behavioural data for Speartooth shark is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Viviparous 🤰 Viviparous

Distinct pairing with embrace . Viviparous, placental .

🌍 Habitat & Distribution

Marine; freshwater; brackish; demersal. Tropical; 5°N - 21°S

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish ⬇️ Benthic
Trophic Level
4.2±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.0049 × L3.08 (TL)
Max TL
100cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
60.00/100
High vulnerability
Trophic Level
4.2
Apex / Top predator
Climate Zone
Tropical
Latitude Range
5°N – 21°S
Described By
Müller & Henle, 1839

👥 Community & Contribute

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