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💧 Freshwater Least Concern 🍽️ Edible 🎣 Game Fish 🌡️ Tropical

Scaly osman

Diptychus maculatus Steindachner, 1866
Max Length
70 cm
Max Weight
-
Lifespan
-
Trophic Level
2
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
67.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Occurs mainly in rocky, mountainous streams and lakes . Found in rivers with swift currents . Feed on benthic plants which are attached on rocks and stones and on associated benthic invertebrates .

Scientific Name
Diptychus maculatus
Authority
Steindachner, 1866
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
70 cm
Trophic Level
2
Resilience
Low
Vulnerability
67.00/100
Migration
Potamodromous
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Diptychus
Diptychus
Species
Scaly osman
Diptychus maculatus

🐟 Physical Description

Physical description for Scaly osman is currently being compiled.

🌀 Behaviour

Behavioural data for Scaly osman is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic; potamodromous . Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Potamodromous
Trophic Level
2
Food Items

benthic plants which are attached on rocks and stones and on associated benthic invertebrates (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00537 × L3.15 (TL)
Max TL
70cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
67.00/100
High vulnerability
Trophic Level
2
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Steindachner, 1866

🎣 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.

🍽️ Edibility & Flavour

"Diptychus Maculatus 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 Scaly osman is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Scaly osman 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

📊 Population Dynamics

Year Region Index Notes
- - -

👥 Community & Contribute

Aquareap Community Observations
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