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🌊 Marine 🎣 Game Fish ⚠️ Venomous ⚡ Venomous 🌡️ Subtropical 🎣 Game Fish

Australian bull ray

Myliobatis australis Macleay, 1881
Max Length
-
Max Weight
56.5 kg
Lifespan
-
Trophic Level
3.4
Depth
1–85 m
Climate
Subtropical
Resilience
Low
Vulnerability
61.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Commonly found off beaches and over sand flats in shallow water. Also found offshore down to 85 m . Feeds mainly on crabs and shellfish . Ovoviviparous .

Scientific Name
Myliobatis australis
Authority
Macleay, 1881
Habitat
Marine
Climate
Subtropical
Max Weight
56.5 kg
Depth Range
1–85 m
Trophic Level
3.4
Resilience
Low
Vulnerability
61.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Australian bull ray is currently being compiled.

🌀 Behaviour

Behavioural data for Australian bull ray 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; reef-associated; depth range 1 - 85 m . Subtropical; 27°S - 43°S Indian Ocean: southern Australia, from Western Australia to Queensland.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.4±0.4
Food Items

crabs and shellfish (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.09 (TL)
Max Weight
56,500g

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
61.00/100
High vulnerability
Trophic Level
3.4
Predator
Climate Zone
Subtropical
Described By
Macleay, 1881

⚠️ 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

🎣 Angling Guide

Difficulty
Beginner
Fight Rating
strong pulls with head-shakes
Best Seasons
spring,summer,fall
Best Time
incoming tide, dawn and dusk
Line Weight
15-30
Rod Type
medium-heavy spinning
Hook Size
2/0-5/0
Catch & Release
✓ Recommended
Best Months
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Techniques
bottom fishing popping cork soft plastics live bait
Bait & Lures
live shrimp cut mullet soft plastic paddle-tails popping corks
Recommended Tackle
  • medium-heavy 7ft spinning rod
  • 30-50 lb braid
  • fluorocarbon leader
Where to Find Them
  • grass flats
  • oyster bars
  • marsh drains
  • deeper channel edges
Tips & Tricks
Popping cork technique attracts fish from distance. Fish moving tides.
Catch & Release Tips

Use barbless hooks, minimise air exposure, and revive fish head-first in current before release.

Regulations Summary

⚠️ Slot limits protect breeding-size fish. Verify daily bag limits.

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Australian bull ray ↗
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