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💧 Freshwater Least Concern 🍽️ Edible 🌡️ Subtropical

La Plata croaker

Pachyurus bonariensis Steindachner, 1879
Max Length
25 cm
Max Weight
Lifespan
Trophic Level
3.5
Depth
Climate
Subtropical
Resilience
High
Vulnerability
27.00/100
Typical Length
Depth Zone

📖 Overview

La Plata croaker (Pachyurus bonariensis) is a ray-finned fish of the family Sciaenidae. It inhabits freshwater waters. This species can reach a maximum total length of 25 cm. With a trophic level of 3.5, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List. Commercially fished and consumed as food.

Scientific Name
Pachyurus bonariensis
Authority
Steindachner, 1879
Habitat
Freshwater
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
25 cm
Trophic Level
3.5
Resilience
High
Vulnerability
27.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

: fusiform / normal.

🌀 Behaviour

Behavioural data for La Plata croaker is currently being reviewed.

🦐 Diet

Diet information for La Plata croaker is currently being compiled.

🥚 Reproduction

Reproduction data for La Plata croaker is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Subtropical South America: Uruguay and Paraguay River basins and lower parts of Paraná River.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.5±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00871 × L3.08 (TL)
Max TL
25cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Steindachner, 1879

🍽️ Edibility & Flavour

"La Plata croaker 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 19.4 g
Omega-3 (total) 723 mg

🔬 Mercury Safety

Mercury data for La Plata croaker 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 La Plata Croaker
🌍CES smuha laplatská
🇵🇹Portuguese Corvina-de-rio
🇪🇸Spanish Corvina de río (boca chica)

Scientific Synonyms

Scientific Name Author Year Status
Lepipterus bonariensis Steindachner 1879 Synonym
Pachyurus paranensis Daneri 1956 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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