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

💧 Freshwater Data Deficient 🌡️ Tropical

Macrognathus Meklongensis

Macrognathus meklongensis Roberts, 1986
Max Length
-
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
28.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Macrognathus Meklongensis (Macrognathus meklongensis), first described by Roberts, 1986 is a fish in the family Mastacembelidae (order Synbranchiformes). It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Data Deficient.

Scientific Name
Macrognathus meklongensis
Authority
Roberts, 1986
Habitat
Freshwater
Climate
Tropical
IUCN Status
DD
Trophic Level
3.3
Resilience
High
Vulnerability
28.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Concave rostrum bearing 9-11 pairs of tooth plates; coloration very distinctive; 10-12 faint small ocelli along base of dorsal fin; dorsal and anal fins with fine dark striation. Dorsal, anal and caudal fins entirely separate. Rim of anterior nostril with 6 fingerlike projections. Penultimate (enlarged) dorsal fin spine articulating with same vertebra (33-35) as enlarged anal fin spine .: eel-like.

🌀 Behaviour

Behavioural data for Macrognathus Meklongensis is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00295 × L2.95 (TL)

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
28.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Tropical
Described By
Roberts, 1986

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Macrognathus Meklongensis ↗
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Spotted incorrect or outdated data?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.