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🌊 Marine Least Concern 🍽️ Edible 🌡️ Tropical

Ground croaker

Bairdiella ronchus Cuvier, 1830
Max Length
41.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
16–40 m
Climate
Tropical
Resilience
High
Vulnerability
31.00/100
Typical Length
25 cm
Depth Zone
demersal

📖 Overview

Found in coastal waters, over muddy and sandy bottoms. Feeds on fishes and crustaceans. Oviparous . Important food fish.

Scientific Name
Bairdiella ronchus
Authority
Cuvier, 1830
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
41.5 cm
Depth Range
16–40 m
Latitude
29°S – 23°N
Trophic Level
3.5
Resilience
High
Vulnerability
31.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 11; Dorsal soft rays (total): 21 - 26; Anal spines: 2; Anal soft rays: 7 - 9. Colour greyish above, silvery below. Faint dark streaks on sides, oblique above, longitudinal below lateral line. Dorsal and caudal fins greyish with dark margin, anterior part of anal fin speckled. Mouth subterminal and oblique. Chin without barbel but with 5 pores. Preopercle serrated with few strong pines at angle. Second anal-fin spine very strong, as long as first soft ray. Gas bladder with 2 chambers, the anterior one yoke-shaped without appendages, the posterior one simple, carrot-shaped. Lapillus (small earstone) enlarged, more than half of sagitta (large earstone) (Ref 51721).: short and / or deep.

🌀 Behaviour

Behavioural data for Ground croaker is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Size at Maturity
15.8cm TL

🌍 Habitat & Distribution

Marine; brackish; demersal; depth range 16 - 40 m . Tropical; 23°N - 29°S, 97°W - 34°W

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish ⬇️ Benthic
Trophic Level
3.5±0.2
Food Items

fishes and crustaceans

📐 Morphometrics

Length–Weight Relationship: W = 0.00933 × L3.08 (TL)
Max TL
41.5cm
Dorsal Spines
11
Dorsal Rays
24
Anal Spines
2
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
31.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
23°N – 29°S
Described By
Cuvier, 1830

🍽️ Edibility & Flavour

"Ground 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 19.1 g
Omega-3 (total) 235 mg

🔬 Mercury Safety

Mercury data for Ground 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
✓ Sustainable Choice

🔬 Full Nutritional Profile

Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (lean white fish average)

Proximate Composition
Energy90 kcal
Moisture80 %
Protein18 %
Total Fat1.2 %
Ash1.2 %
Fatty Acids (g)
Saturated Fat0.3 g
Monounsaturated Fat0.2 g
Polyunsaturated Fat0.4 g
Omega-3 Total0.3 g
EPA0.08 g
DHA0.15 g
Omega-6 Total0.05 g
Key Minerals & Vitamins
Calcium18 mg
Iron0.4 mg
Magnesium30 mg
Phosphorus200 mg
Potassium380 mg
Sodium60 mg
Zinc0.4 mg
Selenium30 µg
Vitamin B60.3 mg
Vitamin B121 µg

📊 Population Dynamics

Year Region Index Notes
- - -

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Ground croaker · Ground Drummer · peacock bass · ronco
🇫🇷French Mamselle rouio
🇵🇹Portuguese Bororo · Canganguá · Cangauá · Cangoá · Canguaguá · Cororoca · Corvina Coruca · Mirucaia · Pescada Espinho Duro · Pescado-aratanha · Pirucaia · Robalo-aratanha · Robalo-miraguaia · Roncador · Ticopá
🇪🇸Spanish Corvina Espinosa · Corvineta Ruyo · Gogó · Ronco · ronco rayado

Scientific Synonyms

Scientific Name Author Year Status
? ronchus Cuvier 1830 Synonym
Bairdiella subaequalis Poey 1875 Synonym
Bardiella ronchus Cuvier 1830 Synonym
Corvina fulgens Vaillant & Bocourt 1883 Synonym
Corvina subaequalis Poey 1875 Synonym
Corvina subequalis Poey 1875 Synonym
Sciaena bedoti Regan 1905 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 23 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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