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🌊 Marine Near Threatened ⚠️ Venomous ⚡ Venomous 🌡️ Subtropical

Kapala stingaree

Urolophus kapalensis Yearsley & Last, 2006
Max Length
43.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
9–79 m
Climate
Subtropical
Resilience
-
Vulnerability
53.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Serrated spines on the tail are venomous and can cause excruciating pain (https://fishesofaustralia.net.au/home/species/3544).

Scientific Name
Urolophus kapalensis
Authority
Yearsley & Last, 2006
Habitat
Marine
Climate
Subtropical
Body Shape
Other
IUCN Status
NT
Max Length
43.3 cm
Depth Range
9–79 m
Trophic Level
3.5
Vulnerability
53.00/100
Salinity
30–40 ppt

🐟 Physical Description

This medium-sized species which lacks broad lobes on posterolateral border of nostrils, has the following set of characters: disc subcircular to weakly rhomboidal, width less than 62% TL; internasal flap bell-shaped; tail with well-developed lateral cutaneous folds; stinging spine long, 12-15% TL; dorsal fin low but prominent, free-rear tip over spine origin; total vertebrae 156-170; pre-spine vertebrae 86-95; dorsal surface of disc greenish, paler laterally; usually with dark suborbital blotch and V-shaped interorbital bar .: other.

🌀 Behaviour

Behavioural data for Kapala stingaree is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; benthopelagic; depth range 9 - 79 m . Subtropical; 27°S - 37°S, 150°E - 153°E Southwest Pacific: New South Wales, Australia.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.5±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00813 × L3.08 (TL)
Max TL
43.3cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2018

📊 Population Risk & Fisheries

Fishing Vulnerability
53.00/100
Moderate-High vulnerability
Trophic Level
3.5
Predator
Body Shape
Other
Climate Zone
Subtropical
Described By
Yearsley & Last, 2006

⚠️ Venom Profile

Medical Warning: This species is venomous. Seek immediate medical attention if envenomated. Contact emergency services and follow first aid guidance below.
Venom Type
proteinaceous neurotoxin
Delivery
dorsal, anal, and pelvic fin spines
Potency
Severe
Mortality Risk
Low
Symptom Onset
5min
Duration
24.0hrs
Antivenom
✗ Not Available
Named Toxins
high-molecular-weight protein (Stonustoxin analogue) acetylcholine
Symptoms
  • immediate intense pain
  • swelling
  • erythema
  • occasional nausea and weakness
Affected Body Systems
peripheral nervous system cardiovascular
First Aid
Immerse affected area in hot water (45 C, tolerable) for 30-90 minutes to denature toxin. Do not apply ice.
Medical Treatment

Analgesia; wound care; tetanus prophylaxis; severe cases may require monitoring for systemic effects.

References: Compiled from Bhide (2018), Halstead et al. (1988) and family-specific envenomation literature

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