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🌊 Marine Least Concern 🍽️ Edible 🌡️ Subtropical

Japanese sillago

Sillago japonica Temminck & Schlegel, 1843
Max Length
30 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
0–30 m
Climate
Subtropical
Resilience
High
Vulnerability
25.00/100
Typical Length
22 cm
Depth Zone
demersal

📖 Overview

Occur in bays on shallow sandy flats. Maximum size is over 30 cm (Mark Donachy, pers. comm., 2001). Oviparous . Greatly esteemed for its delicate flavor .

Scientific Name
Sillago japonica
Authority
Temminck & Schlegel, 1843
Habitat
Marine
Climate
Subtropical
Body Shape
Elongated
IUCN Status
LC
Max Length
30 cm
Depth Range
0–30 m
Trophic Level
3.5
Resilience
High
Vulnerability
25.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 12; Dorsal soft rays (total): 21 - 23; Anal spines: 2; Anal soft rays: 22 - 24; Vertebrae: 35. Swim bladder with anterior projecting extensions and a single posterior extension. Body is greenish gray above, the dorsal part of the head being the darker, and whitish below. The fins are mostly hyaline; the membrane between the first to the third dorsal fin spines with minute dark brown dots; the margins of the dorsal fin with a few dark brown spots. The caudal fin with dark margins.: elongated; Cross section: circular.

🌀 Behaviour

Behavioural data for Japanese sillago is currently being reviewed.

🦐 Diet

Studies of Japanese whiting occupying surf zones show that there is a distinct shift in diet as fish mature, with the change occurring at a length of around 20 mm. Young fish tended to consume a higher proportion of calanoid copepods, with small amounts of mysids also taken. Older fish take substantially more mysids, with few copepods or polychaetes taken. Other studies have found amphipods, bivalves, caridean shrimps, crabs and small fish also contribute to the diets of S. japonica in some areas, helping to reduce interspecific competition locally. In most all diet surveys, there is a shift in diet as size increases, probably to avoid intraspecific competition. Seasonal changes associated with prey abundance are also observed.

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

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

🌍 Habitat & Distribution

Marine; demersal; non-migratory; depth range 0 - 30 m . Subtropical; 45°N - 21°N, 116°E - 149°E Northwest Pacific: Japan, Korea, China, and Taiwan.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.5±0.52

📐 Morphometrics

Length–Weight Relationship: W = 0.00631 × L3.06 (TL)
Max TL
30cm
Dorsal Spines
12
Dorsal Rays
22
Anal Spines
2
Anal Rays
23
Vertebrae
35

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Elongated
Climate Zone
Subtropical
Described By
Temminck & Schlegel, 1843

🍽️ Edibility & Flavour

"Japanese sillago is an edible species."

✗ Not for Raw
✓ Fresh Indicators
  • Clear, bright eyes — cloudy eyes indicate age
  • Firm flesh that springs back when pressed
  • Fresh ocean smell, never strong or ammonia-like
  • Bright red or pink gills, not grey or brown
  • Shiny, moist skin with scales tightly attached
✗ Avoid If
  • Cloudy or sunken eyes
  • Strong fishy or ammonia odour
  • Soft, mushy flesh that doesn't spring back
  • Discoloured or dry flesh
Best Cooking Methods
Baking Grilling Pan-frying

⚡ Nutrition

Detailed nutritional data for Japanese sillago is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Japanese sillago has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact
✓ Sustainable Choice

🔬 Full Nutritional Profile

Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (generic fish average)

Proximate Composition
Energy125 kcal
Moisture75 %
Protein20 %
Total Fat4 %
Ash1.3 %
Fatty Acids (g)
Saturated Fat1 g
Monounsaturated Fat1.2 g
Polyunsaturated Fat1.5 g
Omega-3 Total1 g
EPA0.3 g
DHA0.5 g
Omega-6 Total0.3 g
Key Minerals & Vitamins
Calcium20 mg
Iron0.7 mg
Magnesium30 mg
Phosphorus220 mg
Potassium380 mg
Sodium55 mg
Zinc0.5 mg
Selenium32 µg
Vitamin B122 µg

📊 Population Dynamics

Year Region Index Notes
- - -

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Japanese Sillago · Japanese Whiting
🏳️Catalan Sillaguè temperat
🌍CES ježdíkovec japonský
🇩🇰Danish Japansk sillago
🇫🇷French Pêche-madame Japonais
🇯🇵Japanese Shirogisu · シロギス
🇰🇷Korean 청보리멸
🇷🇺Russian Японская силага
🇪🇸Spanish Silago Japonés
🇨🇳Chinese kiss魚 · 少鱗鱚 · 日本沙鮻 · 沙腸仔

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 20 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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