Rutilus pigus

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	CYPRINIFORMES	CYPRINIDAE

Scientific Name:

Rutilus pigus

Species Authority:

(Lacepède, 1803)

Common Name/s:

English

–

Danube Roach

Assessment Information [top]

Red List Category & Criteria:

Least Concern ver 3.1

Year Assessed:

2008

Assessor/s:

Freyhof, J. & Kottelat, M.

Reviewer/s:

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

Justification:
The species is known from the northern Adriatic basin, from Livenza to Po drainages, Lakes Maggiore, Lugano and Como (Italy, Switzerland). The area of occupancy of the remaining spawning sites is estimated to be more than 2,000 km², but this is threatened by weirs, which block the migration to some spawning sites. It is suspected that population has declined (less so in recent years) but not at a rate to qualify for a threatened or Near Threatened category.

History:

1996

–

Data Deficient

Geographic Range [top]

Range Description:	Northern Adriatic basin, from Livenza to Po drainages, Lakes Maggiore, Lugano and Como (Italy, Switzerland). Introduced in Arno.
Countries:	Native: France; Italy; Switzerland
Range Map:	(click map to view full version)

Population [top]

Population:	Abundant.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	Habitat: Lacustrine populations inhabit deep waters of large, subalpine lakes. Riverine populations inhabit large to medium sized rivers. Biology: Lives in small groups. Lives up to 10 years. Spawns for the first time at 2-3 years. Moves to shallow areas of rivers to spawn in April-June. Feeds on invertebrates, algae and detritus.
Systems:	Freshwater

Threats [top]

Major Threat(s):	Threatened by overfishing and construction of weirs, which block access to spawning sites.

Major Threat(s):

Threatened by overfishing and construction of weirs, which block access to spawning sites.

Conservation Actions [top]

Conservation Actions:	No information.

Conservation Actions:

No information.

Citation:	Freyhof, J. & Kottelat, M. 2008. Rutilus pigus. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 08 February 2012.
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