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🌊 Marine Critically Endangered 🍽️ Edible 🌡️ Subtropical

Bottlenose wedgefish

Rhynchobatus australiae Whitley, 1939
Max Length
124 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
0–60 m
Climate
Subtropical
Resilience
Low
Vulnerability
67.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Inhabits inshore waters on the continental shelves . Demersal on soft bottoms and near coral reefs. Female specimens may reach 300 cm in length in Thailand . Feeds on bottom crustaceans, mollusks and bottom-dwelling fishes . Ovoviviparous . Caught commonly by demersal tangle net, and to a lesser extent by trawl and longline fisheries. Marketed fresh; fins prized for the sharkfin trade .

Scientific Name
Rhynchobatus australiae
Authority
Whitley, 1939
Habitat
Marine
Climate
Subtropical
IUCN Status
CR
Max Length
124 cm
Depth Range
0–60 m
Latitude
30°S – 30°N
Trophic Level
3.5
Resilience
Low
Vulnerability
67.00/100
Salinity
30–40 ppt

🐟 Physical Description

Physical description for Bottlenose wedgefish is currently being compiled.

🌀 Behaviour

Behavioural data for Bottlenose wedgefish is currently being reviewed.

🦐 Diet

Diet information for Bottlenose wedgefish 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 .

🌍 Habitat & Distribution

Marine; demersal; depth range 0 - 60 m . Subtropical; 30°N - 30°S, 30°E - 155°E West Pacific: Red Sea, Persian Gulf (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.5±0.5
Food Items

bottom crustaceans, mollusks (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00363 × L3.11 (TL)
Max TL
124cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
67.00/100
High vulnerability
Trophic Level
3.5
Predator
Climate Zone
Subtropical
Latitude Range
30°N – 30°S
Described By
Whitley, 1939

🍽️ Edibility & Flavour

Nutrition

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 19.3 g
Omega-3 (total) 199 mg

🔬 Mercury Safety

Mercury data for Bottlenose wedgefish has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact

👥 Community & Contribute

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