Coregonus bavaricus 

Scope: Global & Europe
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Actinopterygii Salmoniformes Salmonidae

Scientific Name: Coregonus bavaricus Hofer, 1909
Taxonomic Notes: Old literature records 18-21 gill rakers. Published data from the 1930's report 19-28. The only recently (2003) caught individual was 245 mm SL with 30 gill rakers.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii,v)+2ab(iii,v) ver 3.1
Year Published: 2008
Date Assessed: 2008-01-01
Assessor(s): Freyhof, J. & Kottelat, M.
Reviewer(s): Bogutskaya, N., & Smith, K. (IUCN Freshwater Biodiversity Unit)
A very rare and declining species found in only one location, Lake Ammersee (41 km², the deep water where the species occurs is probably an area of less than 10 km²).

The species has only been recorded three times by local fisherman since 2000. It used to be a commercial species supporting a fishing industry in the 1940s. However the decline is suspected to have occurred in the 1970s when the eutrophication was at its peak. This species may be on the verge of extinction as the lake is still mesotrophic.

Geographic Range [top]

Range Description:Germany: Lake Ammersee.
Countries occurrence:
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Since 2000 only three individuals have been caught. In the 1940s the species was an important commercial species.
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Habitat:
At depths of 60-85 m, down to 60 m in summer. Spawns on bottom at depths of 40-50 m. Ammersee is a mesotrophic lake.

Spawns in June-July, usually between 15 June and 15 July.
Generation Length (years):10

Use and Trade [top]

Use and Trade: In the 1940s the species was an important commercial species. It is now too rare to be of any commercial interest.

Threats [top]

Major Threat(s): The major threat to the species is eutrophication, caused by pollution from domestic sources. The lake is still mesotrophic.

Conservation Actions [top]

Conservation Actions: No information.

Citation: Freyhof, J. & Kottelat, M. 2008. Coregonus bavaricus. The IUCN Red List of Threatened Species 2008: e.T135698A4185831. . Downloaded on 14 August 2018.
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