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🌊 Marine Least Concern 🍽️ Edible 🌡️ Tropical

Butter hamlet

Hypoplectrus unicolor Walbaum, 1792
Max Length
12.7 cm
Max Weight
-
Lifespan
-
Trophic Level
4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
27.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Butter hamlet (Hypoplectrus unicolor) is a ray-finned fish of the family Serranidae. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 12.7 cm. With a trophic level of 4, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List. Commercially fished and consumed as food.

Scientific Name
Hypoplectrus unicolor
Authority
Walbaum, 1792
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
12.7 cm
Trophic Level
4
Resilience
High
Vulnerability
27.00/100
Salinity
30–40 ppt

🐟 Physical Description

Adults pale yellow; usually darker dorsally; grayish yellow that pales ventrally. Iridescent blue dorsal-ventral lines on head, sometimes extending to the leading edge of pelvic fins. One distinct blue line encircles the orbit and extends ventrally on each side of the fish. Two black pigment spots are sometimes found on the snout region of the nares. A large black saddle on caudal peduncle, extending below the lateral line on each side of the fish. Pelvic fins yellowish, pectorals clear.: short and / or deep.

🌀 Behaviour

Behavioural data for Butter hamlet is currently being reviewed.

🦐 Diet

Diet information for Butter hamlet is currently being compiled.

🥚 Reproduction

Reproduction data for Butter hamlet is currently being compiled.

🌍 Habitat & Distribution

Marine; reef-associated. Tropical; 32°N - 6°N, 99°W - 56°W Central Atlantic: Florida (USA), Bahamas and throughout the Caribbean.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
4±0.65

📐 Morphometrics

Length–Weight Relationship: W = 0.01778 × L3.03 (TL)
Max TL
12.7cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2012

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
4
Apex / Top predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Described By
Walbaum, 1792

🍽️ Edibility & Flavour

"Butter hamlet 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 18.1 g
Omega-3 (total) 133 mg

🔬 Mercury Safety

Mercury data for Butter hamlet 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

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Hypoplectus unicolor Walbaum 1792 Synonym
Perca unicolor Walbaum 1792 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 36 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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