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💧 Freshwater Least Concern 🍽️ Edible 🎣 Game Fish 🌡️ Tropical

Oscar

Astronotus ocellatus Agassiz, 1831
Max Length
45.7 cm
Max Weight
1.6 kg
Lifespan
-
Trophic Level
2.8
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
36.00/100
Typical Length
24 cm
Depth Zone
-

📖 Overview

Preferably inhabits quiet shallow waters in mud-bottomed and sand-bottomed canals and ponds . Feeds on small fish, crayfish, worms and insect larvae. Quite popular with aquarists but not for aquaculturists because of its slow growth . Maximum length 40 cm TL . A highly esteemed food fish in South America .

Scientific Name
Astronotus ocellatus
Authority
Agassiz, 1831
Habitat
Freshwater
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
45.7 cm
Max Weight
1.6 kg
Latitude
15°S – 4°N
Trophic Level
2.8
Resilience
High
Vulnerability
36.00/100
Water Temp
22–25 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 12 - 14; Dorsal soft rays (total): 17 - 21; Anal spines: 3; Anal soft rays: 16 - 20. Large mouth with thick lips; 7 preopercular pores; first gill arch without lobe; gill rakers short and thick with many denticles; dorsal and anal fins bases densely scaled; many branched rays; body color dark with bright orange opercle margin and ventral parts of the lateral sides of the body; often a black rounded blotch with orange margin at caudal fin base .: short and / or deep; Cross section: oval.

🌀 Behaviour

Behavioural data for Oscar is currently being reviewed.

🦐 Diet

Diet information for Oscar is currently being compiled.

🥚 Reproduction

Size at Maturity
12cm TL

In captivity, both male and female clean a suitable spawning site - often a flat rock , or branches, or in a circular nest excavated in shallow water . Eggs (usually numbering in the thousands, Ref. 44091) are deposited and are guarded by both parents. Egg hatch in 3 or 4 days and parent move the fry to a shallow pit in the sand where they remain for 6 or 7 days .

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 6.0 - 8.0; dH range: 5 - 19. Tropical; 22°C - 25°C ; 4°N - 15°S, 78°W - 47°W South America: western Amazon and Orinoco basins.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.8±0.32
Food Items

small fish, crayfish, worms and insect larvae

📐 Morphometrics

Length–Weight Relationship: W = 0.03162 × L3.02 (TL)
Max TL
45.7cm
Max Weight
1,600g
Dorsal Spines
13
Dorsal Rays
19
Anal Spines
3
Anal Rays
18

🌡️ 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
High
Minimum doubling time
Fishing Vulnerability
36.00/100
Moderate vulnerability
Trophic Level
2.8
Omnivore / Planktivore
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
4°N – 15°S
Described By
Agassiz, 1831

🍽️ Edibility & Flavour

"Oscar 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

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 17.9 g
Omega-3 (total) 318 mg

🔬 Mercury Safety

Mercury data for Oscar 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 Marble Cichlid · Northern Cichlid · Oscar · Oscar Cichlid · Oscar, Tiger oscar, Velvet cichlid · Red oscar · Tiger Oscar · Tiger Oscar Cichlid · Velvet Cichlid
🇸🇦Arabic أوسكار · أوسكار رخامي · أوسكار شمالي
🌍CES vrubozubec paví
🇩🇰Danish Påfugleøjecichlide
🇩🇪German Pfauenaugenbuntbarsch
🇫🇮Finnish riikinkukkoahven
🇫🇷French Cichlide oeil de paon · Cichlidé œil de paon, Oscar · Crombier · Oscar
🇳🇱Dutch Pauwoogcichlide
🇵🇱Polish Pielegnica pawiooka
🇵🇹Portuguese Acará-açu · Acará-grande · Apaiari · Corró-baiano · Oscar-ocelado
🇷🇺Russian Глазчатый астронотус
🇪🇸Spanish Acará · Carahuazú · Cíclido Oscar Tigre · Tigre Óscar · Vieja
🇸🇪Swedish påfågelciklid · oscar
🇨🇳Chinese 圖麗魚 · 地圖魚 · 地圖魚,花豬

Scientific Synonyms

Scientific Name Author Year Status
Acara compressus Cope 1872 Synonym
Acara hyposticta Cope 1878 Synonym
Acara ocellatus Agassiz 1831 Synonym
Astronotus ocellatus ocellatus Agassiz 1831 Synonym
Astronotus ocellatus zebra Pellegrin 1904 Synonym
Astronotus orbiculatus Haseman 1911 Synonym
Cychla rubroocellata Jardine & Schomburgk 1843 Synonym
Lobotes ocellatus Agassiz 1831 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 62 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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