Cyprinus yunnanensis — Details

Yunnan Carp learn more about names for this taxon

Overview

Comprehensive Description

Biology

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Lives in shallow water with aquatic plants and usually seeks food in the middle and lower layers of water bodies. Feeds mainly on small fishes and shrimps. It spawn viscid eggs on aquatic plants in April and May (Ref. 45563).
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Distribution

Range Description

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An endemic fish to China and only recorded from in Qilu Lake in Yunnan province.
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Asia: Tunghai, Yunnan, China (type locality).
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Physical Description

Size

Max. size

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19.9 cm SL (male/unsexed; (Ref. 45623))
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Ecology

Habitat

Habitat and Ecology

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Habitat and Ecology
Found in a shallow lake, and found in dense aquatic vegetation, seeking food in the middle and lower layers of the water body. It feeds on miscellaneous food but mainly on zoogenic food such as small fishes and shrimps. It spawns viscid eggs on aquatic plants in April and May. It becomes sexually mature when grows to about 130 mm. It moves swiftly, has strong adaptability and does not die easily after leaving water. It is medium in size, generally 100-200 mm long and the large ones may weigh 500 g.

Systems
  • Freshwater
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Environment

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benthopelagic; freshwater
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Trophic Strategy

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Lives in shallow water with aquatic plants and usually seeks food in the middle and lower layers of water bodies. Feeds mainly on small fishes and shrimps.
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Conservation

Conservation Status

IUCN Red List Assessment

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Red List Category
CR
Critically Endangered

Red List Criteria
B1ab(iii,v)

Version
3.1

Year Assessed
2011

Assessor/s
Cui, K.

Reviewer/s
Zhou, W., Chen, X.-Y., Zhao, H. & Allen, D.

Contributor/s

Justification
The species is only known from Qilu Lake in Yunnan province, China. The species hasn't been recorded in the lake since the late 1970s, either in fishery records or during survey (1982-1985, W. Zhou pers. comm. 2011). However, more research is needed to confirm the species extinction in the lake. It is listed as Critically Endangered Possibly Extinct.
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Population

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Population
Historically an economic fish, it has not been recorded since the late 1970s, either in fishery records or during survey (1982-1985, W. Zhou pers. comm. 2011).

Population Trend
Unknown
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Threats

Threats

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Major Threats

Since 1964, many species of fish (economic and non-economic species) have been introduced into Qilu Lake which devour much of the this species spawn.

Agricultural development of the littoral zone has resulted in the sharp fall of the water level of the lake due to water extraction, this has led to a decline in the aquatic plants in the lake depriving the species of their spawning grounds. Qilu Lake is a shallow lake and the continuous discharge of industrial, agricultural and domestic waste water into it has resulted in heavy pollution.

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Not Evaluated
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Management

Conservation Actions

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Conservation Actions
The species is listed as a Class II protected animal of Yunnan Province in 1989.
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Wikipedia

Cyprinus yunnanensis

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This article is an orphan, as few or no other articles link to it. Please introduce links to this page from related articles; suggestions may be available. (February 2010)

Cyprinus yunnanensis is a species of ray-finned fish in the genus Cyprinus.

Footnotes

This Cyprininae article is a stub. You can help Wikipedia by expanding it.
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