South American silver croaker
📖 Overview
Occupies very diverse biotopes and carries out its biological cycle in freshwater as well as in brackish water . Juveniles feed on larvae of crustaceans (especially Macrobrachium), aquatic insects and copepods. Adults prey on fish. Captured during the rainy season .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 11; Dorsal soft rays (total): 30 - 34; Anal spines: 2; Anal soft rays: 5 - 6. Vertebral column extends into caudal fin. Black spot near the base of the pectorals. Dorsal posterior margin of operculum slightly toothed.: fusiform / normal; Cross section: oval.
🌀 Behaviour
Behavioural data for South American silver croaker is currently being reviewed.
🦐 Diet
Diet information for South American silver croaker is currently being compiled.
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; benthopelagic; potamodromous . Tropical; 22°C - 27°C South America: Amazon, Orinoco, Paraná, Paraguay, and São Francisco River basins and rivers fo Guianas.
🌿 Ecology
larvae of crustaceans (especially Macrobrachium), aquatic insects and copepods
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🍽️ Edibility & Flavour
"South American silver croaker is an edible species."
- 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
- Cloudy or sunken eyes
- Strong fishy or ammonia odour
- Soft, mushy flesh that doesn't spring back
- Discoloured or dry flesh
⚡ Nutrition
Per 100g cooked - Source: USDA FoodData Central
| Nutrient | Amount |
|---|---|
| Protein | 18.9 g |
| Omega-3 (total) | 344 mg |
🔬 Mercury Safety
Mercury data for South American silver croaker has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.
🌿 Sustainability
🌐 Names & Taxonomy
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Diplolepis squamosissimus | Heckel | 1840 | Synonym |
| Johnius amazonicus | Castelnau | 1855 | Synonym |
| Johnius crouvina | Castelnau | 1855 | Synonym |
| Plagioscion amazonicus | Castelnau | 1855 | Synonym |
| Plagioscion francisci | Steindachner | 1917 | Synonym |
| Plagioscion squamosissimus iquitensis | Nakashima | 1941 | Synonym |
| Sciaena squamosissima | Heckel | 1840 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 98 records indexed .
👥 Community & Contribute
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