Gymnocephalus schraetser

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	ACTINOPTERYGII	PERCIFORMES	PERCIDAE

Scientific Name:

Gymnocephalus schraetser

Species Authority:

(Linnaeus, 1758)

Common Name/s:

English

–

Schraetzer, Striped Ruffe

Synonym/s:

Gymnocephalus schraetzer (Linnaeus, 1758)

Assessment Information [top]

Red List Category & Criteria:

Least Concern ver 3.1

Year Assessed:

2008

Assessor/s

Freyhof, J. & Kottelat, M.

Evaluator/s:

Bogutskaya, N., & Smith, K. (IUCN Freshwater Biodiversity Unit)

Justification:
A widespread species with no known major widespread threats.

History:

1996

–

Vulnerable

Geographic Range [top]

Range Description:	Danube drainage.
Countries:	Native: Austria; Bosnia and Herzegovina; Bulgaria; Croatia; Germany; Hungary; Moldova; Romania; Serbia; Slovakia; Slovenia; Ukraine
Range Map:	(click map to view full version)

Population [top]

Population:	Abundant.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	Habitat: Open sand and mud bottom of large rivers with moderate current. Biology: Gregarious, nocturnal. Lives up to 15 years. Spawns for the first time at 2-3 years, 120-160 mm SL. Spawns in April-June. Usually, a single female spawns with several males. Females attach eggs to stones. Larvae are benthic. Usually crepuscular but feeds also during daytime. Feeds on small invertebrates, especially molluscs.
Systems:	Freshwater

Habitat and Ecology:

Habitat:
Open sand and mud bottom of large rivers with moderate current.

Biology:
Gregarious, nocturnal. Lives up to 15 years. Spawns for the first time at 2-3 years, 120-160 mm SL. Spawns in April-June. Usually, a single female spawns with several males. Females attach eggs to stones. Larvae are benthic. Usually crepuscular but feeds also during daytime. Feeds on small invertebrates, especially molluscs.

Systems:

Freshwater

Threats [top]

Major Threat(s):	No major threats known.

Major Threat(s):

No major threats known.

Conservation Actions [top]

Conservation Actions:	No information.

Conservation Actions:

No information.

Citation:	Freyhof, J. & Kottelat, M. 2008. Gymnocephalus schraetser. In: IUCN 2009. IUCN Red List of Threatened Species. Version 2009.2. <www.iucnredlist.org>. Downloaded on 10 February 2010.
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