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💧 Freshwater Least Concern 🍽️ Edible 🐠 Aquarium 🌡️ Tropical

Metallic livebearer

Girardinus metallicus Poey, 1854
Max Length
5 cm
Max Weight
-
Lifespan
-
Trophic Level
2.3
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
31.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Inhabits ponds, lakes and streams. Prefers clear, stagnant or very sluggish water. Feeds on diatoms, algae, detritus, insect larvae and aquatic vegetation.

Scientific Name
Girardinus metallicus
Authority
Poey, 1854
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
5 cm
Trophic Level
2.3
Resilience
Medium
Vulnerability
31.00/100
Migration
Non-migratory
Water Temp
22–25 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Metallic livebearer is currently being compiled.

🌀 Behaviour

Behavioural data for Metallic livebearer is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

🐣 Viviparous 🤰 Viviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
Internal

🌍 Habitat & Distribution

Freshwater; demersal; pH range: 6.0 - 8.0; dH range: 9 - 19; non-migratory. Tropical; 22°C - 25°C Central America: Cuba.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Non-migratory
Trophic Level
2.3±0.18
Food Items

diatoms, algae, detritus, insect larvae and aquatic vegetation

📐 Morphometrics

Length–Weight Relationship: W = 0.00851 × L3.15 (TL)
Max TL
5cm

🌡️ Water Parameters & Tolerance

Temperature Range
22–25°C
pH Range
6–8
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
31.00/100
Low vulnerability
Trophic Level
2.3
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Poey, 1854

🍽️ Edibility & Flavour

"Metallic livebearer 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 Metallic livebearer is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Metallic livebearer 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
- - -

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Girardinus garmani Eigenmann 1903 Synonym
Girardinus pygmaeus Rivas 1944 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 26 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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