Island trevally
📖 Overview
Adults are pelagic and are abundant around oceanic islands while not found in neritic areas . May be encountered in solitary, pairs or small schools. Schools frequent sandy river basins, sandy channels of lagoon and seaward reefs. Feed on small crustaceans in the sand . Marketed fresh and dried or salted . Minimum depth reported taken from Ref. 128797.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 9; Dorsal soft rays (total): 28 - 31; Anal spines: 3; Anal soft rays: 24 - 26. : fusiform / normal; Cross section: compressed.
🌀 Behaviour
Behavioural data for Island trevally is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; reef-associated; oceanodromous ; depth range 0 - 168 m . Tropical; 35°N - 34°S, 35°E - 113°W north to southern Japan and Hawaii, south to Sydney, Australia.
🌿 Ecology
small crustaceans in the sand (Ref
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🎣 Angling Guide
- medium-heavy 7ft spinning rod
- 30-50 lb braid
- fluorocarbon leader
- grass flats
- oyster bars
- marsh drains
- deeper channel edges
Use barbless hooks, minimise air exposure, and revive fish head-first in current before release.
⚠️ Slot limits protect breeding-size fish. Verify daily bag limits.
🍽️ Edibility & Flavour
"Ferdauia Orthogrammus 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 | 20.2 g |
| Omega-3 (total) | 181 mg |
🔬 Mercury Safety
Mercury data for Island trevally has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.
🌿 Sustainability
📊 Population Dynamics
| Year | Region | Index | Notes |
|---|---|---|---|
| - | - | - |
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