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💧 Freshwater Least Concern 🍽️ Edible 🌡️ Tropical

Eastern rainbowfish

Melanotaenia splendida Peters, 1866
Max Length
20 cm
Max Weight
-
Lifespan
3 yrs
Trophic Level
2.7
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
18.00/100
Typical Length
11 cm
Depth Zone
-

📖 Overview

Inhabits streams and lakes, often forming large schools at the surface. Temperatures in their environments range from 20 to 29 °C and pH from 5.3 to 8.5 and the water varies from clear to turbid .

Scientific Name
Melanotaenia splendida
Authority
Peters, 1866
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
20 cm
Lifespan
3 years
Trophic Level
2.7
Resilience
High
Vulnerability
18.00/100
Water Temp
20–30 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 6 - 8; Dorsal soft rays (total): 10 - 12; Anal spines: 1; Anal soft rays: 18 - 20. : fusiform / normal.

🌀 Behaviour

Behavioural data for Eastern rainbowfish is currently being reviewed.

🦐 Diet

Diet information for Eastern rainbowfish is currently being compiled.

🥚 Reproduction

Size at Maturity
3.8cm TL

Females attach their eggs to aquatic vegetation and other submerged materials, e.g. Melaleuca sp. roots found in banks and margins of rivers . Distinct pairing .

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 6.0 - 8.0; dH range: 10 - 30; depth range 0 - ? m. Tropical; 20°C - 30°C

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.7±0.34
🐠 Schooling

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.04 (TL)
Max TL
20cm
Dorsal Spines
7
Dorsal Rays
11
Anal Spines
1
Anal Rays
19

🌡️ Water Parameters & Tolerance

Temperature Range
20–30°C
pH Range
6–8
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
18.00/100
Low vulnerability
Trophic Level
2.7
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Peters, 1866

🍽️ Edibility & Flavour

"Eastern rainbowfish 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 Eastern rainbowfish is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Eastern rainbowfish 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

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Aida inornata Castelnau 1875 Synonym
Aidaprora carteri Whitley 1935 Synonym
Aristeus cavifrons Macleay 1882 Synonym
Melanotaenia splendida inornata Castelnau 1875 Synonym
Melanotaenia splendida splendida - - Synonym
Melanotaenia splendida tatei Zietz 1896 Synonym
Nematocentris splendida Peters 1866 Synonym
Nematocentris tatei Zietz 1896 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 11 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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