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🌊 Marine Least Concern 🌡️ Tropical

Weber's croaker

Johnius weberi Hardenberg, 1936
Max Length
14 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
15.00/100
Typical Length
10 cm
Depth Zone
-

📖 Overview

Weber's croaker (Johnius weberi) is a ray-finned fish of the family Sciaenidae. It inhabits marine (saltwater) waters. This species can reach a maximum total length of 14 cm. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Johnius weberi
Authority
Hardenberg, 1936
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
14 cm
Trophic Level
3.4
Resilience
High
Vulnerability
15.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 11; Dorsal soft rays (total): 26 - 29; Anal spines: 2; Anal soft rays: 7. : fusiform / normal.

🌀 Behaviour

Behavioural data for Weber's 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; brackish; benthopelagic. Tropical Southwest Pacific: Gulf of Thailand, Sumatra, and Borneo.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish
Trophic Level
3.4±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00891 × L3.07 (TL)
Max TL
14cm
Dorsal Spines
11
Dorsal Rays
28
Anal Spines
2
Anal Rays
7

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2016

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
15.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Hardenberg, 1936

👥 Community & Contribute

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