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🌊 Marine Least Concern ⚠️ Venomous ⚡ Venomous 🌡️ Temperate

Old wife

Enoplosus armatus White, 1790
Max Length
50 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Temperate
Resilience
-
Vulnerability
41.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Juveniles live in estuaries while adults occur in estuaries and on inshore and offshore rocky reefs and seagrass beds . Found either in large schools, in pairs or as solitary individuals . Neither anterolateral glandular groove nor venom gland is present . Reported to have venomous fin spines without associated venom gland (https://fishesofaustralia.net.au/home/species/445#moreinfo).

Scientific Name
Enoplosus armatus
Authority
White, 1790
Habitat
Marine
Climate
Temperate
Body Shape
Elongated
IUCN Status
LC
Max Length
50 cm
Trophic Level
3.3
Vulnerability
41.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 9; Dorsal soft rays (total): 14 - 15; Anal spines: 3; Anal soft rays: 14 - 15; Vertebrae: 26. Adults are silver to brown with black vertical stripes .: elongated.

🌀 Behaviour

Behavioural data for Old wife 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; brackish; reef-associated; depth range ? - 90 m . Temperate; 26°S - 43°S Endemic to Australia.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🪸 Reef Associated
Trophic Level
3.3±0.4
🐠 Schooling 🧍 Solitary

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
50cm
Dorsal Spines
9
Dorsal Rays
15
Anal Spines
3
Anal Rays
15
Vertebrae
26

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Fishing Vulnerability
41.00/100
Moderate vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Temperate
Described By
White, 1790

⚠️ 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

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Angelfish · Bastard Dory · Double Scalare · Long-spined Chaetodon · Moonlighter · Zebra Fish · Zebra-fish · old wife
🌍CES trnohřbet obrněný
🇩🇪German Doppel-Rückenflosser
🇫🇮Finnish Sirppiahven
🇵🇹Portuguese Peixe-zebra-de-armadura · Zebra-de-Armadura
🇷🇺Russian Австралийский колючепёр
🇪🇸Spanish Pez Gallo Bastardo
🌍THA ปลาโอลด์ไวฟ์
🇨🇳Chinese 盔姥鲈

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 25 records indexed .

Occurrence density from GBIF View GBIF records ↗

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