CR

Breiter Luzin Cisco

Coregonus lucinensis

UnknownVUEUVUEU

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Coregonus lucinensis faces severe population decline primarily due to habitat degradation and water quality deterioration in its native lake systems. Eutrophication from agricultural runoff and urban development has fundamentally altered the oligotrophic conditions this coldwater fish requires for survival. Overfishing during the 20th century further reduced already vulnerable populations, while climate change threatens to warm the deep, cold waters essential for spawning and feeding.

Threat summary

Habitat

This endemic whitefish inhabits deep, cold, oligotrophic lakes in northern Europe, particularly favoring depths between 20-80 meters where water temperatures remain consistently cool. The species requires well-oxygenated waters with minimal nutrient pollution and spawns in shallow, gravelly areas along lake shores during autumn months.

Marine oceanic· majorWetlands (inland) - Permanent freshwater lakes· major

Conservation measures underway

Site/area protectionLegislation

Other threatened species in SALMONIDAE

VU

Coregonus subautumnalis

Declining
VU

Bourget Whitefish

Coregonus lavaretus

Unknown
VU

Fatio's Whitefish

Coregonus fatioi

Unknown
VU

Sempach Whitefish

Coregonus suidteri

Unknown

Threatened in Germany

VU

Lepiota echinella

Unknown
EN

Lyophyllum deliberatum

Unknown
VU

Large Tree-chernes

Dendrochernes cyrneus

Unknown
CR

Cheilosia varnensis

Unknown

Frequently asked questions

Why is Breiter Luzin Cisco classified as Critically Endangered?
Breiter Luzin Cisco is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Coregonus lucinensis faces severe population decline primarily due to habitat degradation and water quality deterioration in its native lake systems. Eutrophication from agricultural runoff and urban development has fundamentally altered the oligotrophic conditions this coldwater fish requires for survival. Overfishing during the 20th century further reduced already vulnerable populations, while climate change threatens to warm the deep, cold waters essential for spawning and feeding.
Where does Breiter Luzin Cisco live?
Breiter Luzin Cisco occurs in Germany, and Poland. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Breiter Luzin Cisco?
The main threats to Breiter Luzin Cisco are 11.1, 5.3, 8.1, and 8.3. The full IUCN-classified threat record for this species is detailed on the species page.

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