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🌊 Marine Least Concern 🍽️ Edible 🎣 Game Fish 🌡️ Tropical

Union snook

Centropomus unionensis Bocourt, 1868
Max Length
46 cm
Max Weight
1.1 kg
Lifespan
Trophic Level
3.9
Depth
Climate
Tropical
Resilience
High
Vulnerability
26.00/100
Typical Length
25 cm
Depth Zone
demersal

📖 Overview

Union snook (Centropomus unionensis) is a ray-finned fish of the family Centropomidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 46 cm. With a trophic level of 3.9, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List. Commercially fished and consumed as food, valued as a sport fish.

Scientific Name
Centropomus unionensis
Authority
Bocourt, 1868
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
46 cm
Max Weight
1.1 kg
Latitude
20°S – 15°N
Trophic Level
3.9
Resilience
High
Vulnerability
26.00/100
Salinity
30–40 ppt

🐟 Physical Description

Body elongate and deep; dorsal profile slightly concave behind the eyes; lateral line extending to posterior edge of caudal fin; second anal spine, when folded down, reaching middle of caudal peduncle; pectoral and pelvic fins sub-equal; anal fin with 6 rays; back blue gray; belly white; lateral line pale; membranes between dorsal spines and between second and third anal spines pale .: fusiform / normal.

🌀 Behaviour

Behavioural data for Union snook is currently being reviewed.

🦐 Diet

Diet information for Union snook is currently being compiled.

🥚 Reproduction

Reproduction data for Union snook is currently being compiled.

🌍 Habitat & Distribution

Marine; brackish; demersal. Tropical; 15°N - 20°S

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish ⬇️ Benthic
Trophic Level
3.9±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.00759 × L3.09 (TL)
Max TL
46cm
Max Weight
1,100g

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2007

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
26.00/100
Low vulnerability
Trophic Level
3.9
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
15°N – 20°S
Described By
Bocourt, 1868

🍽️ Edibility & Flavour

"Union snook 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

Detailed nutritional data for Union snook is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Union snook 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

Language Common Names
🇬🇧English humpback snook · Snook · Union snook
🌍CES robalo peruánský
🇵🇹Portuguese Robalo-do-Pacífico
🇷🇺Russian Панамский робало
🇪🇸Spanish Gualajo · Róbalo ojito · robalo serrano

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 10 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Union snook ↗
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