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🌊 Marine 🌡️ Subtropical

Eastern keelback mullet

Planiliza lauvergnii Eydoux & Souleyet, 1850
Max Length
39.4 cm
Max Weight
-
Lifespan
-
Trophic Level
2
Depth
-
Climate
Subtropical
Resilience
High
Vulnerability
26.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Occurs in coastal and estuarine waters near river mouths, occasionally visiting upstream tidally influenced zones . Oviparous, eggs are pelagic and non-adhesive . Consumed locally in many places but likely not fished in commercial quantities . Used as food fish in Japan.

Scientific Name
Planiliza lauvergnii
Authority
Eydoux & Souleyet, 1850
Habitat
Marine
Climate
Subtropical
Body Shape
Fusiform / normal
Max Length
39.4 cm
Trophic Level
2
Resilience
High
Vulnerability
26.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Planiliza
Planiliza
Species
Eastern keelback mullet
Planiliza lauvergnii

🐟 Physical Description

Anal spines: 3; Anal soft rays: 8 - 9; Vertebrae: 24. This species is distinguished by the following characters: hind tip of maxilla exposed when mouth is closed; head relatively small and flattened dorsally, head length 22-28% of SL; adipose eyelid is developed anteriorly and posteriorly covering part of iris; mid-dorsal line is sharply keeled; second vertebra with a pair of long, spine or antenna like neural postzygapophyse; stomach gizzard-like, with five unbranched pyloric caeca; transverse scales 11-13 (mode 12) rows; scales in lateral series usually 36-40; pectoral-fin usually with 17 rays; pectoral-fin length, 14-18% of SL, not reaching to level of first dorsal fin; supraneurals 3, the first between second and third vertebrae, second between fourth and fifth vertebrae, and third between fifth and sixth vertebrae; first pterygiophore of spinous dorsal fin positions in between sixth and seventh vertebrae .: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Eastern keelback mullet is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

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

🌍 Habitat & Distribution

Marine; brackish; pelagic-neritic. Subtropical Northwest Pacific: Japan through the Ryukyus, Korea, China, Taiwan, to Vietnam (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🐟 Pelagic
Trophic Level
2

📐 Morphometrics

Length–Weight Relationship: W = 0.01047 × L2.93 (TL)
Max TL
39.4cm
Anal Spines
3
Anal Rays
9
Vertebrae
24

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
26.00/100
Low vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Eydoux & Souleyet, 1850

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