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🌊 Marine 🍽️ Edible 🎣 Game Fish 🌡️ Subtropical

Argentinian sandperch

Pseudopercis semifasciata Cuvier, 1829
Max Length
100 cm
Max Weight
10.0 kg
Lifespan
-
Trophic Level
3.9
Depth
-
Climate
Subtropical
Resilience
Low
Vulnerability
64.00/100
Typical Length
48.6 cm
Depth Zone
demersal

📖 Overview

Found on rocky and sandy bottoms in coastal waters . Oviparous with low batch fecundity . "We frequently catch P. semifasciata off the Rio de Janeiro coast. I have personally seen fish of 24 kg, with fish in the 12-18 kg range being fairly common (Capt. Eduardo Baumeier, pers. comm., 2001)." Ref. 27569 gave 10 kg as maximum weight.

Scientific Name
Pseudopercis semifasciata
Authority
Cuvier, 1829
Habitat
Marine
Climate
Subtropical
Body Shape
Fusiform / normal
Max Length
100 cm
Max Weight
10 kg
Trophic Level
3.9
Resilience
Low
Vulnerability
64.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 4 - 5; Dorsal soft rays (total): 24 - 27; Anal spines: 1; Anal soft rays: 22 - 24. Body pale brown with several dark brown vertical and horizontal stripes composed of dark brown blotches. A row of dark brown blotches on middle of dorsal fin membrane. An obvious black blotch on base of upper lobe of caudal fin .: fusiform / normal.

🌀 Behaviour

Behavioural data for Argentinian sandperch is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; demersal; non-migratory; depth range ? - 100 m . Subtropical; 23°S - 48°S, 68°W - 41°W Southwest Atlantic: Sao Paulo, Brazil to Golfo San Jorge, Argentina.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.9±0.68

📐 Morphometrics

Length–Weight Relationship: W = 0.00933 × L3.03 (TL)
Max TL
100cm
Max Weight
10,000g
Dorsal Spines
5
Dorsal Rays
26
Anal Spines
1
Anal Rays
23

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
64.00/100
High vulnerability
Trophic Level
3.9
Predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Cuvier, 1829

🎣 Angling Guide

Difficulty
Beginner
Fight Rating
strong pulls with head-shakes
Best Seasons
spring,summer,fall
Best Time
incoming tide, dawn and dusk
Line Weight
15-30
Rod Type
medium-heavy spinning
Hook Size
2/0-5/0
Catch & Release
✓ Recommended
Best Months
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Techniques
bottom fishing popping cork soft plastics live bait
Bait & Lures
live shrimp cut mullet soft plastic paddle-tails popping corks
Recommended Tackle
  • medium-heavy 7ft spinning rod
  • 30-50 lb braid
  • fluorocarbon leader
Where to Find Them
  • grass flats
  • oyster bars
  • marsh drains
  • deeper channel edges
Tips & Tricks
Popping cork technique attracts fish from distance. Fish moving tides.
Catch & Release Tips

Use barbless hooks, minimise air exposure, and revive fish head-first in current before release.

Regulations Summary

⚠️ Slot limits protect breeding-size fish. Verify daily bag limits.

🍽️ Edibility & Flavour

"Argentinian sandperch 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 g
Omega-3 (total) 323 mg

🔬 Mercury Safety

Mercury data for Argentinian sandperch 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

🔬 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

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Mugiloides somnambula Berg 1895 Synonym
Percis semifasciata Cuvier 1829 Synonym
Pinguipes somnambula Berg 1895 Synonym
Pinguipes somunambula Berg 1895 Synonym
Pseudopercis somnambula Berg 1895 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 7 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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