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Diadromous Least Concern 🍽️ Edible 🌡️ Tropical

Chilean silverside

Odontesthes regia Humboldt, 1821
Max Length
21 cm
Max Weight
-
Lifespan
-
Trophic Level
4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
21.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Chilean silverside (Odontesthes regia), first described by Humboldt, 1821 is a medium-sized fish in the family Atherinopsidae (order Atheriniformes). Adults typically reach 21.00 cm in maximum length. It is diadromous, migrating between freshwater and marine environments during its life cycle. It occurs in Tropical waters. Diet is predominantly piscivorous, targeting other fish and larger prey. The species schools in loose to tight aggregations. On the IUCN Red List, it is classified as Least Concern.The species is important as a food fish and considered a sustainable seafood option under current management. As a member of the Atherinopsidae, it shares life-history and morphological traits with its relatives in the group.

Scientific Name
Odontesthes regia
Authority
Humboldt, 1821
Habitat
Diadromous
Climate
Tropical
IUCN Status
LC
Max Length
21 cm
Trophic Level
4
Resilience
High
Vulnerability
21.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Chilean silverside is currently being compiled.

🌀 Behaviour

Behavioural data for Chilean silverside is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Marine; freshwater; brackish; pelagic-neritic. Tropical; 5°S - 47°S, 85°W - 70°W South America: Paíta, Peru to Aysén, Chile.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish 🐟 Pelagic
Trophic Level
4±0.5
🐠 Schooling
Food Items

the eggs of Engraulis ringens (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00525 × L2.99 (TL)
Max TL
21cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2007

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
21.00/100
Low vulnerability
Trophic Level
4
Apex / Top predator
Climate Zone
Tropical
Described By
Humboldt, 1821

🍽️ Edibility & Flavour

"Chilean silverside 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 18.9 g
Omega-3 (total) 249 mg

🔬 Mercury Safety

Mercury data for Chilean silverside 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

Language Common Names
🇬🇧English Chilean silverside · Silverside
🌍CES gavúnovec královský
🇫🇷French Athérine chilienne
🇪🇸Spanish Pejerrey · Pejerrey de mar

Scientific Synonyms

Scientific Name Author Year Status
Atherina laticlavia Valenciennes 1835 Synonym
Atherina regia Humboldt 1821 Synonym
Austromenidia laticlava Valenciennes 1835 Synonym
Austromenidia regia Humbolft 1821 Synonym
Basilichthys jordani Abbott 1899 Synonym
Basilichthys octavius Abbott 1899 Synonym
Basilichthys regillus Abbott 1899 Synonym
Cauque regillus Abbott 1899 Synonym
Chirostoma affine Steindachner 1898 Synonym
Odontesthes regillus Abbott 1899 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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