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🌊 Marine 🌡️ Subtropical

Croaker

Ophioscion adustus Agassiz, 1831
Max Length
-
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Subtropical
Resilience
High
Vulnerability
28.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Croaker (Ophioscion adustus), first described by Agassiz, 1831 is a fish in the family Sciaenidae (order Perciformes). It inhabits marine coastal and open-ocean environments. It occurs in Subtropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.

Scientific Name
Ophioscion adustus
Authority
Agassiz, 1831
Habitat
Marine
Climate
Subtropical
Body Shape
Fusiform / normal
Trophic Level
3.5
Resilience
High
Vulnerability
28.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 11; Dorsal soft rays (total): 28; Anal spines: 2; Anal soft rays: 8. : fusiform / normal.

🌀 Behaviour

Behavioural data for Croaker 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. Subtropical Southwest Atlantic: Argentina and Uruguay.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.5±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00871 × L3.07 (TL)
Dorsal Spines
11
Dorsal Rays
28
Anal Spines
2
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
28.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Agassiz, 1831

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