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💧 Freshwater Vulnerable 🌡️ Tropical

Bigtooth river stingray

Potamotrygon henlei Castelnau, 1855
Potamotrygon Henlei (Potamotrygon henlei)
Potamotrygon Henlei (Potamotrygon henlei)
Max Length
-
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
Very low
Vulnerability
51.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Bigtooth river stingray (Potamotrygon henlei) is a ray-finned fish of the family Potamotrygonidae. It inhabits freshwater waters. With a trophic level of 3.2, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Vulnerable on the IUCN Red List.

Scientific Name
Potamotrygon henlei
Authority
Castelnau, 1855
Habitat
Freshwater
Climate
Tropical
IUCN Status
VU
Trophic Level
3.2
Resilience
Very low
Vulnerability
51.00/100
Water Temp
23–28 °C
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Bigtooth river stingray is currently being compiled.

🌀 Behaviour

Behavioural data for Bigtooth river stingray is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

Two to three live offsping are produced.

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 5.8 - 7.2; dH range: 4 - 15. Tropical; 23°C - 28°C South America: Tocantins River basin (Tocantins and Araguaia rivers).

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01 × L3.04 (TL)

🌡️ Water Parameters & Tolerance

Temperature Range
23–28°C
pH Range
5.8–7.2
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2024

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
51.00/100
Moderate-High vulnerability
Trophic Level
3.2
Predator
Climate Zone
Tropical
Described By
Castelnau, 1855

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Bigtooth river stingray · Henle's Freshwater Stingray · Tocantins River Ray
🇩🇰Danish Stortandet flodpigrokke
🇩🇪German Feuerrochen · Schwarzer Süßwasser-Stechrochen
🌍EST Tocantinsi jõerai
🇫🇮Finnish Helmijokirausku
🇳🇱Dutch Groottandzoetwaterrog
🇵🇹Portuguese Arraia De Fogo · Arraia-de-rio-de-dentes-grandes
🌍THA ปลากระเบนเฮนไล

Scientific Synonyms

Scientific Name Author Year Status
Trygon henlei Castelnau 1855 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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