New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine Least Concern 🎣 Game Fish 🌡️ Tropical 🎣 Game Fish

Blacktail moray

Gymnothorax kolpos Böhlke & Böhlke, 1980
Max Length
91 cm
Max Weight
1.1 kg
Lifespan
-
Trophic Level
4.1
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
56.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Blacktail moray (Gymnothorax kolpos), first described by Böhlke & Böhlke, 1980 is a large fish in the family Muraenidae (order Anguilliformes). Adults typically reach 91.00 cm in maximum length and up to 1.100 kg. It inhabits marine coastal and open-ocean environments. It occurs in Tropical waters. Diet is predominantly piscivorous, targeting other fish and larger prey. On the IUCN Red List, it is classified as Least Concern.The species is valued as a game and sport species.

Scientific Name
Gymnothorax kolpos
Authority
Böhlke & Böhlke, 1980
Habitat
Marine
Climate
Tropical
IUCN Status
LC
Max Length
91 cm
Max Weight
1.1 kg
Trophic Level
4.1
Resilience
Low
Vulnerability
56.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Large, greenish brown with white ocellated spots that are small on head and anterior, becoming larger and fewer posteriorly .: eel-like.

🌀 Behaviour

Behavioural data for Blacktail moray is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; demersal; depth range ? - 120 m . Tropical

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
4.1±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.00047 × L3.28 (TL)
Max TL
91cm
Max Weight
1,100g

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
56.00/100
High vulnerability
Trophic Level
4.1
Apex / Top predator
Climate Zone
Tropical
Described By
Böhlke & Böhlke, 1980

🎣 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.

📊 Population Dynamics

Year Region Index Notes
- - -

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 9 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Blacktail moray ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.