Triangular rockcod
📖 Overview
Triangular rockcod (Gobionotothen acuta), first described by Günther, 1880 is a medium-sized fish in the family Nototheniidae (order Perciformes). Adults typically reach 35.00 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 30 to 300 metres. It occurs in Polar waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. The species is important as a food fish. As a member of the Nototheniidae, it shares life-history and morphological traits with its relatives in the group.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 28 - 30; Anal soft rays: 28 - 31. Body marbled and with three or four short, broad, dark bars on upper parts of sides. Dorsally rays sometimes with a series of small spots, caudal fin faintly barred .: fusiform / normal.
🌀 Behaviour
Behavioural data for Triangular rockcod is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; demersal; depth range 30 - 300 m , usually 30 - 140 m . Polar; 46°S - 54°S South Territory, Heard Islands and Kerguelen Plateau.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
🍽️ Edibility & Flavour
"Gobionotothen Acuta is an edible species."
- 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
- Cloudy or sunken eyes
- Strong fishy or ammonia odour
- Soft, mushy flesh that doesn't spring back
- Discoloured or dry flesh
⚡ Nutrition
Per 100g cooked - Source: USDA FoodData Central
| Nutrient | Amount |
|---|---|
| Protein | 17.8 g |
| Omega-3 (total) | 364 mg |
🔬 Mercury Safety
Mercury data for Triangular rockcod has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.
🌿 Sustainability
🔬 Full Nutritional Profile
Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (generic fish average)
🔍 Similar Species
👥 Community & Contribute
No observations yet - be the first to log one!
View all observations for Triangular rockcod ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.