Overview

Comprehensive Description

Biology

Lives in the edge of the lake with plenty of waterweeds. Carnivore. Stays at bottom of water by day and comes out to the surface seeking food by dawn and dusk (Ref. 45563).
  • Kobayakawa, M. 1989 Systematic revision of the catfish genus Silurus, with description of a new species from Thailand and Burma. Jap. J. Ichthyol. 36(2):155-186. (Ref. 9417)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Distribution

Range Description

Endemic to Lake Dianchi, Yunnan Province, China. The species is not yet known from elsewhere but it maybe exists in some reservoirs, such as Songhuaba.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Asia: endemic to Dian Chi Lake, Yunnan, China.
  • IUCN, International Union for Conservation of Nature and Natural Resources 1994 1994 IUCN red list of threatened animals. International Union for Conservation of Nature and Natural Resources, Gland, Switzerland and Cambridge, U.K. (Ref. 6376)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Lakes of Dianchi and Yilong, Yunnan Province, China.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© FishWise Professional

Source: FishWise Professional

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Physical Description

Morphology

Dorsal soft rays (total): 4 - 6; Analsoft rays: 61 - 73
  • Wang, S. (ed.) 1998 China red data book of endangered animals. Pisces. National Environmental Protection Agency. Endangered Species Scientific Commision. Science Press, Beijing, China. 247p. (Ref. 45563)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Size

Max. size

38.0 cm TL (male/unsexed; (Ref. ))
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Diagnostic Description

Head depressed; eyes small and located in anterior section of head; snout short; lower jaw longer than upper one and its end extending nearly to anterior edge of eyes; barbels 2 pairs, body naked. Body dark gray on back and sides, with cloudy streaks and milky white on belly.
  • Wang, S. (ed.) 1998 China red data book of endangered animals. Pisces. National Environmental Protection Agency. Endangered Species Scientific Commision. Science Press, Beijing, China. 247p. (Ref. 45563)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Lives in the littoral zone of the lake with plenty of waterweeds and is carnivorous. It stays at bottom of water by day and comes out to the surface of water seeking food by dawn and dusk.

Systems
  • Freshwater
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Environment

demersal; freshwater
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Trophic Strategy

Lives in the edge of the lake with plenty of waterweeds. Carnivore. Stays at bottom of water by day and comes out to the surface seeking food by dawn and dusk.
  • Wang, S. (ed.) 1998 China red data book of endangered animals. Pisces. National Environmental Protection Agency. Endangered Species Scientific Commision. Science Press, Beijing, China. 247p. (Ref. 45563)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Partner Web Site: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
CR
Critically Endangered

Red List Criteria
B1ab(ii,iii); D

Version
3.1

Year Assessed
2008

Assessor/s
Chen, X.-Y. & Yang, B.

Reviewer/s
Kullander, F. (Freshwater Fish Red List Authority) & Smith, K. (IUCN Freshwater Biodiversity Assessment Unit)

Contributor/s

Justification
Silurus mento is endemic to Lake Dianchi (surface area 292.6 km²), Yunnan Province, China. The species occurs only in the littoral zone of the lake so its extent of occurrence is estimated at about 20% of the lake area: 63.5 km². It was common before 1950s, started to become rare in late 1950s, and has not been found in the lake since the 1970s. This is most likely due to habitat loss and introduced species. It is most likely extinct from the lake, but further surveys are needed to confirm this and the possibility that a population may be present in connected reservoirs such as Songhuaba.

History
  • 1996
    Endangered
    (Baillie and Groombridge 1996)
  • 1996
    Endangered
  • 1994
    Insufficiently Known
    (Groombridge 1994)
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Population

Population
Only ever known from Lake Dianchi itself, there hass no record of this species since 1970s. The population size is probably very small.

Population Trend
Unknown
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Threats

Major Threats
Its loss from the lake is likely due to habitat loss and introduced fish species. This fish is relying on littoral zone with macrophytes, its disappearance from the lake is obviously related to loss of macrophytes, which result in these big fishes exposed in the shallow water and increased mortality from its natural enemy and human beings, and being short of food etc. Predation of eggs and juveniles by introduced species may also play an important role.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Critically Endangered (CR) (B1ab(ii,iii); D)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Management

Conservation Actions

Conservation Actions
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Wikipedia

Kunming catfish

The Kunming catfish, Silurus mento, is a species of fish in the Siluridae family. It is endemic to China where it occurs in Dian Chi Lake. This species grows to a length of 21.5 centimetres (8.5 in) TL.

References[edit]

  1. ^ Chen, X.-Y. & Yang, B. (2008). "Silurus mento". IUCN Red List of Threatened Species. Version 2011.1. International Union for Conservation of Nature. Retrieved 9 August 2011. 


Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

Unreviewed

Article rating from 0 people

Default rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!