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💧 Freshwater Least Concern 🍽️ Edible 🌡️ Tropical

aquarium

Protomelas marginatus Trewavas, 1935
Max Length
16.6 cm
Max Weight
-
Lifespan
-
Trophic Level
2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
20.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Inhabits shallow vegetated areas. Feeds on algae and debris of vascular plants. Ingestion of small invertebrates is possibly incidental .

Scientific Name
Protomelas marginatus
Authority
Trewavas, 1935
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
16.6 cm
Trophic Level
2
Resilience
High
Vulnerability
20.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 15 - 18; Dorsal soft rays (total): 10 - 11; Anal spines: 3; Anal soft rays: 9 - 11. : fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for aquarium is currently being reviewed.

🦐 Diet

Diet information for aquarium is currently being compiled.

🥚 Reproduction

Reproduction data for aquarium is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical; 12°S - 15°S Endemic to Lake Malawi.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2
Food Items

algae and debris of vascular plants

📐 Morphometrics

Length–Weight Relationship: W = 0.01445 × L2.99 (TL)
Max TL
16.6cm
Dorsal Spines
17
Dorsal Rays
11
Anal Spines
3
Anal Rays
10

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
20.00/100
Low vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Trewavas, 1935

🍽️ Edibility & Flavour

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

🔬 Mercury Safety

Mercury data for aquarium 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

Language Common Names
🇬🇧English Turquoise Hap

Scientific Synonyms

Scientific Name Author Year Status
Cyrtocara marginata Trewavas 1935 Synonym
Cyrtocara marginata marginata Trewavas 1935 Synonym
Cyrtocara marginata vuae Trewavas 1935 Synonym
Haplochromis marginatus Trewavas 1935 Synonym
Haplochromis marginatus vuae Trewavas 1935 Synonym
Protomelas marginatus marginatus Trewavas 1935 Synonym
Protomelas marginatus vuae Trewavas 1935 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 4 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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