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🌊 Marine Data Deficient 🌡️ Tropical

Japanese gizzard shad

Nematalosa japonica Regan, 1917
Max Length
19 cm
Max Weight
-
Lifespan
-
Trophic Level
2.4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
19.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Schooling near shore over sand or mud, preferring warmer water than Konosirus punctatus. A filter-feeder; takes minute algae or organic matter. Breeds around May in Japanese waters.

Scientific Name
Nematalosa japonica
Authority
Regan, 1917
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
DD
Max Length
19 cm
Trophic Level
2.4
Resilience
High
Vulnerability
19.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 17 - 26. Body generally more slender than in other species, belly with total 30 to 34 scutes. Anterior arm of pre-operculum with a fleshy triangle above, not covered by third infra-orbital bone (see N. come). Lower jaw strongly flared outward. Pectoral axillary scale well developed. Hind edge of scales distinctly toothed. A dark spot behind gill opening.: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Japanese gizzard shad is currently being reviewed.

🦐 Diet

Diet information for Japanese gizzard shad is currently being compiled.

🥚 Reproduction

Reproduction data for Japanese gizzard shad is currently being compiled.

🌍 Habitat & Distribution

Marine; benthopelagic. Tropical; 37°N - 4°N, 98°E - 136°E

🌿 Ecology

Zone Preferences
🌊 Marine
Feeding Mode
Filter-feed
Trophic Level
2.4±0.16
🐠 Schooling

📐 Morphometrics

Length–Weight Relationship: W = 0.00871 × L3.06 (TL)
Max TL
19cm
Anal Rays
22

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
19.00/100
Low vulnerability
Trophic Level
2.4
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Regan, 1917

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Japanese gizzard shad
🌍CES dorosoma japonská
🇯🇵Japanese Dorokui · ドロクイ
🇷🇺Russian Японская нематалоза
🇨🇳Chinese 土黃 · 扁屏仔 · 日本水滑 · 日本海鰶 · 油魚 · 海鯽仔

Scientific Synonyms

Scientific Name Author Year Status
Spratelloides japonicus Regan 1917 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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