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💧 Freshwater Vulnerable 🍽️ Edible 🌡️ Tropical

Spotfin betta

Betta macrostoma Regan, 1910
Max Length
6.7 cm
Max Weight
Lifespan
Trophic Level
3.3
Depth
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
Depth Zone

📖 Overview

Facultative air-breathing ; Inhabits shallow (about 30 cm deep) near stagnant pools along stream bed with substrate consisting of clay . Occurs also in waterfalls with fast flowing clear water; occupies small pools in tributaries and quiet pools along the main confluence of the river . A mouth brooder .

Scientific Name
Betta macrostoma
Authority
Regan, 1910
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
VU
Max Length
6.7 cm
Trophic Level
3.3
Resilience
High
Vulnerability
10.00/100
Water Temp
24–26 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0 - 1; Dorsal soft rays (total): 9 - 11; Anal spines: 0 - 1; Anal soft rays: 24 - 27; Vertebrae: 31 - 32. Differs from other member of the Betta unimaculata group by possessing the following combination of characters: dorsal fin ocellus; body red in color; caudal fin with transverse black and red bands; opercle with large red blotch in mature male; vertebrae 31-32 (mode 32); dorsal-fin rays 9-11 (mode 10); anal-fin rays 25-28 (mode 27); pectoral-fin rays 13-14; lateral scales 32-33 (mode 33); subdorsal scales 6-8 (mode 7); predorsal scales 21-24 (mode 23); predorsal length 62.3-66.7% SL; head length 30.4-33.3% SL; anal-fin base length 43.2-49.2% SL; dorsal-fin base length 12.2-15.7% SL; lower jaw length 38.0-54.0% HL .: fusiform / normal.

🌀 Behaviour

Behavioural data for Spotfin betta is currently being reviewed.

🦐 Diet

Diet information for Spotfin betta is currently being compiled.

🥚 Reproduction

Male carries the eggs in the mouth.

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 4.4 - 5.7; dH range: ? - 10. Tropical; 24°C - 26°C

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00977 × L2.97 (TL)
Max TL
6.7cm
Dorsal Spines
1
Dorsal Rays
10
Anal Spines
1
Anal Rays
26
Vertebrae
32

🌡️ Water Parameters & Tolerance

Temperature Range
24–26°C
pH Range
4.4–5.7
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Regan, 1910

🍽️ Edibility & Flavour

"Spotfin betta 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 Spotfin betta is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Spotfin betta 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

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Spotfin betta ↗
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