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💧 Freshwater Least Concern 🍽️ Edible 🐠 Aquarium 🌡️ Tropical

Rosefin rasbora

Rasbora dusonensis Bleeker, 1850
Max Length
12 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
21.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Occurs in a variety of habitats, but seems to prefer large rivers with slow current . Common along shores in large rivers . Found at or near the surface in clear waters of rivers and streams. Generally prefers a depth of about 5 m. Feeds mainly on exogenous insects, some small crustaceans and algae .

Scientific Name
Rasbora dusonensis
Authority
Bleeker, 1850
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
12 cm
Trophic Level
2.9
Resilience
High
Vulnerability
21.00/100
Water Temp
23–26 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal soft rays (total): 8 - 9; Anal soft rays: 9 - 10; Vertebrae: 29 - 30. A dark grey midlateral stripe, more intense posteriorly, not extending onto the caudal fin; dorsal-fin origin closer to the eye than to the caudal-fin base; 3 scale rows between the lateral line and the midventral row; caudal fin usually with a black posterior margin .: fusiform / normal.

🌀 Behaviour

Behavioural data for Rosefin rasbora is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 5.3 - 5.7; dH range: 2 - 3. Tropical; 23°C - 26°C

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.9±0.36
Food Items

exogenous insects, some small crustaceans and algae (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00776 × L3.01 (TL)
Max TL
12cm
Dorsal Rays
9
Anal Rays
10
Vertebrae
30

🌡️ Water Parameters & Tolerance

Temperature Range
23–26°C
pH Range
5.3–5.7
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
21.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Bleeker, 1850

🍽️ Edibility & Flavour

"Rosefin rasbora 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 Rosefin rasbora is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Rosefin rasbora 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
✓ Sustainable Choice

🔬 Full Nutritional Profile

Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (generic fish average)

Proximate Composition
Energy125 kcal
Moisture75 %
Protein20 %
Total Fat4 %
Ash1.3 %
Fatty Acids (g)
Saturated Fat1 g
Monounsaturated Fat1.2 g
Polyunsaturated Fat1.5 g
Omega-3 Total1 g
EPA0.3 g
DHA0.5 g
Omega-6 Total0.3 g
Key Minerals & Vitamins
Calcium20 mg
Iron0.7 mg
Magnesium30 mg
Phosphorus220 mg
Potassium380 mg
Sodium55 mg
Zinc0.5 mg
Selenium32 µg
Vitamin B122 µg

📊 Population Dynamics

Year Region Index Notes
- - -

👥 Community & Contribute

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