Atter Whitefish
CR

Atter Whitefish

Coregonus atterensis

UnknownVUEUVUEU

Photo: Photo: (c) Thomas Ellmauer, all rights reserved, uploaded by Thomas Ellmauer

Overview

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

Coregonus atterensis faces severe threats from habitat degradation and water quality deterioration in its limited alpine lake environment. Eutrophication from agricultural runoff and climate change-induced warming are altering the cold, oligotrophic conditions this whitefish requires for survival. The species' extremely restricted range makes it particularly vulnerable to any environmental changes in its single lake system.

Threat summary

Habitat

This endemic whitefish inhabits the cold, deep waters of alpine lakes in Austria, specifically adapted to oligotrophic conditions with high oxygen content. The species requires pristine mountain lake environments with stable temperatures and minimal nutrient inputs.

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

Conservation measures underway

Site/area protectionSpecies recoveryLegislation

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 Austria

VU

Lepiota echinella

Unknown
EN

Lyophyllum deliberatum

Unknown
VU

Large Tree-chernes

Dendrochernes cyrneus

Unknown
EN

Pipizella nigriana

Unknown

Frequently asked questions

Why is Atter Whitefish classified as Critically Endangered?
Atter Whitefish 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 atterensis faces severe threats from habitat degradation and water quality deterioration in its limited alpine lake environment. Eutrophication from agricultural runoff and climate change-induced warming are altering the cold, oligotrophic conditions this whitefish requires for survival. The species' extremely restricted range makes it particularly vulnerable to any environmental changes in its single lake system.
Where does Atter Whitefish live?
Atter Whitefish occurs in Austria. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Atter Whitefish?
The main threats to Atter Whitefish are 1.1, 11.1, 8.1, and 8.3. The full IUCN-classified threat record for this species is detailed on the species page.

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