Bluelined surgeonfish
📖 Overview
Inhabits clear lagoon and seaward reefs; often in areas with mixed coral, pavement, rubble and sand substrates . Benthopelagic . Occurs singly or in small groups . Feeds on filamentous algae, diatoms and fine algal film of compacted sand . Relatively uncommon throughout Micronesia; rare on Great Barrier Reef.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 9; Dorsal soft rays (total): 25; Anal spines: 3; Anal soft rays: 25; Vertebrae: 22. This species is characterized by the following: D IX,25; pectoral rays 16; gill rakers 25; teeth incisiform, denticulate, and close-set, with the distal end of upper teeth rounded with 12 upper and 14 lower teeth; body depth 1.9 in SL. Colouration: body light to dark brown with irregular, longitudinal, dotted stripes narrower than brown interspaces; suborbital and opercular region with stripes paralleling snout outline; rear base of dorsal and anal fins with a pupil-sized black blotch; dorsal and anal fins with bands paralleling outer edge . : short and / or deep; Cross section: compressed.
🌀 Behaviour
Behavioural data for Bluelined surgeonfish is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; reef-associated; depth range 1 - 90 m . Tropical; 30°N - 26°S, 52°E - 137°W Central Pacific: southern Japan, Yap, Guam, Pagan, Vanuatu, and Great Barrier Reef; widely in the central Pacific Ocean (except for the Hawaiian Islands and Johnston Atoll).
🌿 Ecology
filamentous algae, diatoms and fine algal film of compacted sand (Ref
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🍽️ Edibility & Flavour
"Acanthurus Nigros 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 | 18.1 g |
| Omega-3 (total) | 116 mg |
🔬 Mercury Safety
Mercury data for Bluelined surgeonfish 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)
📊 Population Dynamics
| Year | Region | Index | Notes |
|---|---|---|---|
| - | - | - |
🦠 Common Diseases
The following diseases are known to affect Bluelined surgeonfish.
🔍 Similar Species
👥 Community & Contribute
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