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🌊 Marine Least Concern 🍽️ Edible 🎣 Game Fish 🌡️ Tropical

Brassy chub

Kyphosus vaigiensis Quoy & Gaimard, 1825
Max Length
70 cm
Max Weight
-
Lifespan
-
Trophic Level
2
Depth
0–40 m
Climate
Tropical
Resilience
Low
Vulnerability
52.00/100
Typical Length
50 cm
Depth Zone
reef

📖 Overview

Aggregate over hard, algal coated bottoms of exposed surf-swept outer reef flats, lagoons, and seaward reefs to a depth of at least 24 m. Found in exposed areas around rocky reefs ; adults usually close to the shore and the coastline, while juveniles are associated with flotsam and can be encountered in the open ocean close to the surface . Also found in mangrove areas . Benthopelagic . Usually in groups . Young (up to 5 cm) found among floating seaweed; feeding on small crustaceans . Adults are carnivorous during summer and autumn but feed on Endarachne binghamiae during winter . Good food fish . Minimum depth reported taken from Ref. 30573.

Scientific Name
Kyphosus vaigiensis
Authority
Quoy & Gaimard, 1825
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
70 cm
Depth Range
0–40 m
Latitude
38°S – 35°N
Trophic Level
2
Resilience
Low
Vulnerability
52.00/100
Migration
Oceanodromous
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 13 - 15; Anal spines: 3; Anal soft rays: 12 - 14; Vertebrae: 26. This species is distinguished by the following characters: elongate and oval-shaped body; scale rows horizontally along the body appear alternately golden and bluish; metallic blue dorsally and white ventrally; caudal fin moderately emarginated; very low dorsal and anal fins; D X-XI,13-15; A III, 12-14; pectoral fin 17-20: teeth incisor-shaped; scales on interorbital region; external side of first gill arch with high number of gill rakers on lower limb 16-23, upper limb 5-10; total lateral line scale rows 63-80, 52-63 has pores; longitudinal scale rows 56-70; vertebrae: precaudal 10, caudal 16; pterygiophores, anal 13-14, dorsal 22-24. Colour of body silvery with a bluish shine, with golden horizontal lines along the body (around 23-29), dorsal lines above lateral line curved along the lateral line;; golden streak beneath eye from snout to behind anterior edge of eye; fins are grey or slightly darker grey than body colour .: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Brassy chub is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

🐣 Oviparous

Oviparous .

🌍 Habitat & Distribution

Marine; reef-associated; oceanodromous ; depth range 0 - 40 m . Tropical; 35°N - 38°S, 25°E - 133°W Pacific Ocean to the Indian Ocean, the Red Sea and the eastern and western Atlantic and the Mediterranean.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Migration
Oceanodromous
Trophic Level
2
Food Items

Endarachne binghamiae during winter (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.0182 × L3 (TL)
Max TL
70cm
Dorsal Spines
11
Dorsal Rays
14
Anal Spines
3
Anal Rays
13
Vertebrae
26

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2014

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
52.00/100
Moderate-High vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
35°N – 38°S
Described By
Quoy & Gaimard, 1825

🎣 Angling Guide

Difficulty
Beginner
Fight Rating
strong pulls with head-shakes
Best Seasons
spring,summer,fall
Best Time
incoming tide, dawn and dusk
Line Weight
15-30
Rod Type
medium-heavy spinning
Hook Size
2/0-5/0
Catch & Release
✓ Recommended
Best Months
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Techniques
bottom fishing popping cork soft plastics live bait
Bait & Lures
live shrimp cut mullet soft plastic paddle-tails popping corks
Recommended Tackle
  • medium-heavy 7ft spinning rod
  • 30-50 lb braid
  • fluorocarbon leader
Where to Find Them
  • grass flats
  • oyster bars
  • marsh drains
  • deeper channel edges
Tips & Tricks
Popping cork technique attracts fish from distance. Fish moving tides.
Catch & Release Tips

Use barbless hooks, minimise air exposure, and revive fish head-first in current before release.

Regulations Summary

⚠️ Slot limits protect breeding-size fish. Verify daily bag limits.

🍽️ Edibility & Flavour

"Brassy chub 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

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 18.2 g
Omega-3 (total) 77 mg

🔬 Mercury Safety

Mercury data for Brassy chub 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
✓ Sustainable Choice

🔬 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

📊 Population Dynamics

Year Region Index Notes
- - -

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Cantharus lineolatus Valenciennes 1830 Synonym
Khyphosus vaigiensis Quoy & Gaimard 1825 Synonym
Kyphosus bleekeri Fowler 1933 Synonym
Kyphosus gibsoni Ogilby 1912 Synonym
Kyphosus lembus Cuvier 1831 Synonym
Kyphosus vaigensis Quoy & Gaimard 1825 Synonym
Pimelepterus flavolineatus Poey 1866 Synonym
Pimelepterus lembus Cuvier 1831 Synonym
Pimelepterus marciac Cuvier 1831 Synonym
Pimelepterus ternatensis Bleeker 1853 Synonym
Pimelepterus vaigiensis Quoy & Gaimard 1825 Synonym
Pimelepterus waigiensis Quoy & Gaimard 1825 Synonym
Segutilum gibsoni Ogilby 1912 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 12 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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