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💧 Freshwater Endangered 🍽️ Edible 🌡️ Temperate

Blaufelchen

Coregonus wartmanni Bloch, 1784
Max Length
50 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
32.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Lacustrine, pelagic, usually at 0-40 m during summer. Feeds on plankton and insects; preys on juvenile Perca fluviatilis in summer. Spawns at surface over deep water, off-shore. Spawns for the first time at 2-3 years and in first half of December, when temperature falls below 7˚C. Males aggregate at surface and females ready to spawn come from deeper water to join these aggregations. Eggs sink to bottom and hatch in March. Larvae swim to surface and start to feed after 8 days . Also Ref. 13813, 47057.

Scientific Name
Coregonus wartmanni
Authority
Bloch, 1784
Habitat
Freshwater
Climate
Temperate
IUCN Status
EN
Max Length
50 cm
Trophic Level
3.1
Resilience
Medium
Vulnerability
32.00/100
Migration
Non-migratory
Water Temp
4–15 °C
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Blaufelchen is currently being compiled.

🌀 Behaviour

Behavioural data for Blaufelchen is currently being reviewed.

🦐 Diet

Diet information for Blaufelchen is currently being compiled.

🥚 Reproduction

Size at Maturity
32.5cm TL

Distinct pairing .

🌍 Habitat & Distribution

Freshwater; pelagic; non-migratory; depth range 0 - ? m , usually 0 - 60 m . Temperate; 4°C - 15°C ; 48°N - 47°N, 9°E - 10°E

🌿 Ecology

Zone Preferences
💧 Freshwater 🐟 Pelagic
Migration
Non-migratory
Trophic Level
3.1±0.3
Food Items

plankton and insects; preys on juvenile Perca fluviatilis in summer

📐 Morphometrics

Length–Weight Relationship: W = 0.00457 × L3.13 (TL)
Max TL
50cm

🌡️ Water Parameters & Tolerance

Temperature Range
4–15°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
32.00/100
Low vulnerability
Trophic Level
3.1
Predator
Climate Zone
Temperate
Described By
Bloch, 1784

🍽️ Edibility & Flavour

"Blaufelchen 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 Blaufelchen is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Blaufelchen 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

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Wartmann's Whitefish
🌍CES síh Wartmannův
🇩🇰Danish Blåhelt
🇩🇪German Balchen · Blaufelchen · Blauling · Bodenseefelchen · Felchen · Fölchen · Hägling · Halberling · Halbfelch · Häugling · Heuerling · Heunerling · Rheinanke · Riedling · Seben · Seeben · Sterzling · Stüben
🇵🇱Polish Sieja błękitna
🇷🇺Russian Западный сиг
🌍SQI Trofta bojëqielli
🇨🇳Chinese 沃特曼氏白鮭

🗺️ Global Occurrence Map

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

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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