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🌊 Marine Least Concern 🌡️ Subtropical

Blue croaker

Corvula batabana Poey, 1860
Max Length
25 cm
Max Weight
Lifespan
Trophic Level
3.4
Depth
3–10 m
Climate
Subtropical
Resilience
High
Vulnerability
21.00/100
Typical Length
20 cm
Depth Zone
reef

📖 Overview

Mostly restricted to clear, sheltered, shore waters with luxuriant plant growth, usually from 3-10 m depth. Adults feed mainly on crustaceans .

Scientific Name
Corvula batabana
Authority
Poey, 1860
Habitat
Marine
Climate
Subtropical
IUCN Status
LC
Max Length
25 cm
Depth Range
3–10 m
Trophic Level
3.4
Resilience
High
Vulnerability
21.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 25 - 29; Anal spines: 2; Anal soft rays: 7 - 8. A distinctive bluish grey in life, with scattered dark spots on back and upper sides. Longitudinal stripes below lateral line. Mouth subterminal, slightly oblique. Chin without barbel but with 5 mental pores. Preopercle margin finely serrate without strong spines. Gas bladder with 2 chambers; anterior one yoke-shaped, without appendages, posterior chamber, carrot-shaped. Lapillus enlarged, more than half size of sagitta (Ref 51721).

🌀 Behaviour

Behavioural data for Blue croaker is currently being reviewed.

🦐 Diet

Diet information for Blue croaker is currently being compiled.

🥚 Reproduction

Reproduction data for Blue croaker is currently being compiled.

🌍 Habitat & Distribution

Marine; reef-associated; depth range 3 - 10 m . Subtropical

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.4±0.55
Food Items

crustaceans (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.0123 × L3.07 (TL)
Max TL
25cm
Dorsal Spines
11
Dorsal Rays
27
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
21.00/100
Low vulnerability
Trophic Level
3.4
Predator
Climate Zone
Subtropical
Described By
Poey, 1860

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