📖 Overview
Chomba sea catfish (Notarius osculus), first described by Jordan & Gilbert, 1883 is a medium-sized fish in the family Ariidae (order Siluriformes). Adults typically reach 28.00 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. The species is important as a food fish and venomous and potentially dangerous to handle. As a member of the Ariidae, it shares life-history and morphological traits with its relatives in the group.
Scientific Name
Notarius osculus
Authority
Jordan & Gilbert, 1883
🐟 Physical Description
Physical description for Chomba sea catfish is currently being
compiled.
🌀 Behaviour
Behavioural data for Chomba sea catfish is currently being
reviewed.
🦐 Diet
aquatic invertebrates
small fish
algae
detritus
🥚 Reproduction
🐣 Oviparous
📦 Batch Spawner
👄 Mouth Brooder
Spawning Season
spring-summer
🌍 Habitat & Distribution
Marine; brackish; demersal. Tropical; 11°N - 7°N Central America: Pacific coast in Costa Rica and Panama.
🌿 Ecology
Zone Preferences
🌊 Marine
🌿 Brackish
⬇️ Benthic
📐 Morphometrics
Length–Weight Relationship:
W = 0.00468 × L3.13
(TL)
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
Population Resilience
High
Minimum doubling time
Fishing Vulnerability
32.00/100
Low vulnerability
Trophic Level
3.4
Predator
Described By
Jordan & Gilbert, 1883
⚠️ Venom Profile
Medical Warning: This species is venomous. Seek immediate medical attention
if envenomated.
Contact emergency services and follow first aid guidance below.
Delivery
dorsal and pectoral spines with venom glands
Antivenom
✗ Not Available
Named Toxins
crinotoxins
protein toxins
Symptoms
- pain
- oedema
- rare systemic effects
Affected Body Systems
peripheral nervous system
First Aid
Hot water immersion.
Medical Treatment
Wound care, analgesia.
References:
Compiled from Bhide (2018), Halstead et al. (1988) and family-specific envenomation literature
🍽️ Edibility & Flavour
"Notarius Osculus is an edible species."
✗ Not for Raw
✓ Fresh Indicators
- Clear, bright eyes — cloudy eyes indicate age
- Firm flesh that springs back when pressed
- Fresh ocean smell, never strong or ammonia-like
- Bright red or pink gills, not grey or brown
- Shiny, moist skin with scales tightly attached
✗ Avoid If
- Cloudy or sunken eyes
- Strong fishy or ammonia odour
- Soft, mushy flesh that doesn't spring back
- Discoloured or dry flesh
Best Cooking Methods
Baking
Grilling
Pan-frying
⚡ Nutrition
Detailed nutritional data for Chomba sea catfish is
currently being compiled from USDA FoodData Central.
🔬 Mercury Safety
Mercury data for Chomba sea catfish 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
🔬 Full Nutritional Profile
Per 100g - Raw, per 100g
- Source: USDA FoodData Central templates (generic fish average)
Proximate Composition
Energy125 kcal
Moisture75 %
Protein20 %
Total Fat4 %
Ash1.3 %
Fatty Acids (g)
Saturated Fat1 g
Monounsaturated Fat1.2 g
Polyunsaturated Fat1.5 g
Omega-3 Total1 g
EPA0.3 g
DHA0.5 g
Omega-6 Total0.3 g
Key Minerals & Vitamins
Calcium20 mg
Iron0.7 mg
Magnesium30 mg
Phosphorus220 mg
Potassium380 mg
Sodium55 mg
Zinc0.5 mg
Selenium32 µg
Vitamin B122 µg