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🌊 Marine Least Concern ⚠️ Venomous ⚡ Venomous 🌡️ Tropical

Polka dot waspfish

Ocosia zaspilota Poss & Eschmeyer, 1975
Max Length
7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
192–247 m
Climate
Tropical
Resilience
Medium
Vulnerability
32.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Polka dot waspfish (Ocosia zaspilota) is a ray-finned fish of the family Tetrarogidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 7 cm. It occurs at depths between 192 and 247 metres. With a trophic level of 3.2, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List. Venomous.

Scientific Name
Ocosia zaspilota
Authority
Poss & Eschmeyer, 1975
Habitat
Marine
Climate
Tropical
IUCN Status
LC
Max Length
7 cm
Depth Range
192–247 m
Trophic Level
3.2
Resilience
Medium
Vulnerability
32.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 15; Dorsal soft rays (total): 8; Anal spines: 3; Anal soft rays: 5 - 6; Vertebrae: 28. No spines on the lateral surface of the lachrymal nor on the lateral surface of the first suborbital bone . Second and third dorsal spines very elongate in larger specimens. Body with large irregular dark brown spots.

🌀 Behaviour

Behavioural data for Polka dot waspfish 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; demersal; depth range 192 - 247 m . Tropical Central Pacific: Philippines.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.2±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00479 × L3.13 (TL)
Max TL
7cm
Dorsal Spines
15
Dorsal Rays
8
Anal Spines
3
Anal Rays
6
Vertebrae
28

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2024

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
32.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Tropical
Described By
Poss & Eschmeyer, 1975

⚠️ 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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