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💧 Freshwater Least Concern 🍽️ Edible 🌡️ Tropical

Penguinfish

Thayeria obliqua Eigenmann, 1908
Max Length
7.6 cm
Max Weight
Lifespan
Trophic Level
3.2
Depth
Climate
Tropical
Resilience
High
Vulnerability
15.00/100
Typical Length
Depth Zone
pelagic

📖 Overview

Overview information for Penguinfish is currently being compiled by our editorial team.

Scientific Name
Thayeria obliqua
Authority
Eigenmann, 1908
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
7.6 cm
Trophic Level
3.2
Resilience
High
Vulnerability
15.00/100
Water Temp
22–28 °C
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Penguinfish is currently being compiled.

🌀 Behaviour

Behavioural data for Penguinfish is currently being reviewed.

🦐 Diet

Diet information for Penguinfish is currently being compiled.

🥚 Reproduction

🐣 Oviparous

Oviparous .

🌍 Habitat & Distribution

Freshwater; pelagic. Tropical; 22°C - 28°C South America: middle Amazon, middle Tocantins and Guaporé River basins.

🌿 Ecology

Zone Preferences
💧 Freshwater 🐟 Pelagic
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01096 × L3.08 (TL)
Max TL
7.6cm

🌡️ Water Parameters & Tolerance

Temperature Range
22–28°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
15.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Tropical
Described By
Eigenmann, 1908

🍽️ Edibility & Flavour

"Penguinfish 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 Penguinfish is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Penguinfish 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

👥 Community & Contribute

Aquareap Community Observations
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