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💧 Freshwater Least Concern 🍽️ Edible 🌡️ Tropical

Green rivulus

Rivulus cylindraceus Poey, 1860
Max Length
5.5 cm
Max Weight
Lifespan
Trophic Level
3.2
Depth
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
Depth Zone

📖 Overview

Found in upland streams . Abundant in rivers and lakes with clear and abundant vegetation . Not a seasonal killifish. Is easy to maintain in the aquarium .

Scientific Name
Rivulus cylindraceus
Authority
Poey, 1860
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
5.5 cm
Trophic Level
3.2
Resilience
High
Vulnerability
10.00/100
Migration
Non-migratory
Water Temp
22–24 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Green rivulus is currently being compiled.

🌀 Behaviour

Behavioural data for Green rivulus is currently being reviewed.

🦐 Diet

Diet information for Green rivulus is currently being compiled.

🥚 Reproduction

Reproduction data for Green rivulus is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 7.0 - 7.0; dH range: 7 - 9; non-migratory. Tropical; 22°C - 24°C Central America: coastal river basins of Cuba.

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Non-migratory
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00661 × L3.1 (TL)
Max TL
5.5cm

🌡️ Water Parameters & Tolerance

Temperature Range
22–24°C
pH Range
7–7
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Tropical
Described By
Poey, 1860

🍽️ Edibility & Flavour

"Green rivulus 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 Green rivulus is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Green rivulus 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) — 7 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Green rivulus ↗
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