Adults inhabit bays and estuaries . Also found in high altitudes of at least 250 m elevation and a distance of some 20 km from the coast. They also occur in coastal waters, but is more abundant in estuaries of any size. Enter freshwaters mostly in large rivers and feeds on fish and crustaceans .
Body slender and not very deep; dorsal profile slightly concave behind the eyes; lateral line extending to posterior edge of caudal fin; second anal spine, when folded down, not reaching origin of caudal fin; pectoral fins shorter than pelvic fins; anal fin with 7 rays; back blue or gray; belly silvery; lateral line dark. Membranes between second and third anal spines black; distal quarter of pelvic fins generally dark .: fusiform / normal.
🌀 Behaviour
Behavioural data for Blackfin snook is currently being
reviewed.
🦐 Diet
small fish
crustaceans
cephalopods
🥚 Reproduction
🐣 Oviparous📦 Batch Spawner
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External
🌍 Habitat & Distribution
Marine; freshwater; brackish; demersal. Tropical; 32°N - 4°S, 115°W - 77°W central Gulf of California to Ecuador.
ColombiaMexico
🌿 Ecology
Zone Preferences
🌊 Marine💧 Freshwater🌿 Brackish⬇️ Benthic
Trophic Level
4±0.65
Food Items
fish and crustaceans (Ref
📐 Morphometrics
Length–Weight Relationship:
W = 0.00724 × L3.05
(TL)
Max TL
65cm
Max Weight
3,200g
🌡️ Water Parameters & Tolerance
Salinity Range
30–40ppt
🛡️ Conservation Assessment
IUCN Category
Least Concern
Assessment Date
2018
📊 Population Risk & Fisheries
Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
32.00/100
Low vulnerability
Trophic Level
4
Apex / Top predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
32°N
–
4°S
Described By
Günther, 1864
🎣 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 fishingpopping corksoft plasticslive bait
Bait & Lures
live shrimpcut mulletsoft plastic paddle-tailspopping 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
"Blackfin 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
BakingGrillingPan-frying
⚡ Nutrition
Per 100g cooked - Source: USDA FoodData Central
Nutrient
Amount
Protein
19.5 g
Omega-3 (total)
255 mg
🔬 Mercury Safety
Mercury data for Blackfin 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
✓ Sustainable Choice
🔬 Full Nutritional Profile
Per 100g - Raw, per 100g
- Source: USDA FoodData Central templates (generic fish average)