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🌊 Marine Endangered 🎣 Game Fish 🌡️ Subtropical 🎣 Game Fish

Spiny butterfly ray

Gymnura altavela Linnaeus, 1758
Gymnura Altavela (Gymnura altavela)
Gymnura Altavela (Gymnura altavela)
Max Length
-
Max Weight
60.0 kg
Lifespan
-
Trophic Level
4.5
Depth
5–100 m
Climate
Subtropical
Resilience
Very low
Vulnerability
43.00/100
Typical Length
200 cm
Depth Zone
demersal

📖 Overview

Maximum length measured is 140 cm . Occurs over sand and mud. Feeds on fishes, crustaceans, mollusks and plankton. Ovoviviparous, gestation lasting about 6 months with 4 to 7 embryos produced per female .

Scientific Name
Gymnura altavela
Authority
Linnaeus, 1758
Habitat
Marine
Climate
Subtropical
Body Shape
Other
IUCN Status
EN
Max Weight
60 kg
Depth Range
5–100 m
Latitude
39°S – 47°N
Trophic Level
4.5
Resilience
Very low
Vulnerability
43.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Tail short armed with spine. Disk very broad. Very low dorsal and ventral finfolds on tail . Disk dark brown to grayish, lower surface of disc and of pelvic fins white, brownish, rosy or rusty cast. Tail white or rosy white below .: other.

🌀 Behaviour

Behavioural data for Spiny butterfly ray is currently being reviewed.

🦐 Diet

Diet information for Spiny butterfly ray is currently being compiled.

🥚 Reproduction

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures . Distinct pairing with embrace .

🌍 Habitat & Distribution

Marine; brackish; demersal; depth range 5 - 100 m . Subtropical; 47°N - 39°S, 98°W - 42°E

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish ⬇️ Benthic
Trophic Level
4.5±0.1
Food Items

fishes, crustaceans, mollusks and plankton

📐 Morphometrics

Length–Weight Relationship: W = 0.01445 × L3.09 (TL)
Max Weight
60,000g

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
43.00/100
Moderate vulnerability
Trophic Level
4.5
Apex / Top predator
Body Shape
Other
Climate Zone
Subtropical
Latitude Range
47°N – 39°S
Described By
Linnaeus, 1758

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