Overview

Distribution

Range Description

Widespread in southern China. Recorded from the Xi Jiang drainage in Guangdong Province, China. Known from Nanning, Wuzhou, Teng County Mengjiang, and Xiangzhou of Guangxi Province; Chengfang of Shandong Province; also from Nenjiang Zhen, Haerhpin, in Heilongjiang Province.
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Asia: China and Russia.
  • Ng, H.H. 2009 Tachysurus spilotus, a new species of catfish from central Vietnam (Teleostei: Bagridae). Zootaxa 2283:16-28. (Ref. 82737)
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Southeastern China.
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Physical Description

Morphology

Dorsal spines (total): 2; Dorsal soft rays (total): 6; Analsoft rays: 13 - 15
  • Gao, G. 1991 Bagridae. p. 297-317. In J.-H. Pan, L. Zhong, C.-Y. Zheng, H.-L. Wu and J.-H. Liu (eds). 1991. The freshwater fishes of Guangdong Province. Guangdong Science and Technology Press, Guangzhou. 589 pp. (Ref. 33423)
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Size

Maximum size: 50 mm TL
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Max. size

5.0 cm SL (male/unsexed; (Ref. 33423))
  • Gao, G. 1991 Bagridae. p. 297-317. In J.-H. Pan, L. Zhong, C.-Y. Zheng, H.-L. Wu and J.-H. Liu (eds). 1991. The freshwater fishes of Guangdong Province. Guangdong Science and Technology Press, Guangzhou. 589 pp. (Ref. 33423)
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Ecology

Habitat

Amur River Demersal Habitat

This taxon is one of a number of demersal species in the Amur River system. Demersal river fish are found at the river bottom, feeding on benthos and zooplankton

The persistence of mercury contamination in Amur River bottom sediments is a major issue, arising from historic cinnabar mining in the basin and poor waste management practises, especially in the communist Soviet era, where industrial development was placed ahead of sound conservation practises.

The largest native demersal fish species in the Amur River is the 560 centimeter (cm) long kaluga (Huso dauricus); demersal biota are those that inhabit the bottom of a surface water body. Another large demersal fish found in the Amur is the 300 cm Amur sturgeon (Acipenser schrenckii), a taxon which is endemic to the Amur basin.

Other demersal endemic fish species (all in the concubitae family) of the Amur Basin are Iksookimia longicorpa, I. koreensis, I. hugowolfeldi, Cobitis melanoleuca melanoleuca and the Puan spine loach (Iksookimia pumila).

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Habitat and Ecology

Habitat and Ecology
Found in both main channels and in tributaries.

Systems
  • Freshwater
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Environment

demersal; freshwater; pH range: 7.0 - 7.5; dH range: 10 - 20
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2011

Assessor/s
Zhao, H.

Reviewer/s
Allen, D.J., Cui, K., Chen, X.-Y. & Zhou, W.

Contributor/s

Justification
The species is widespread through a number of river systems in southern China. The species is fished, but it is considered Least Concern at present.
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Population

Population
No information available.

Population Trend
Unknown
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Threats

Major Threats
The species is likely to be overfished across some of its range. Pollution and dams are also likely to impact the species.
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Least Concern (LC)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Management

Conservation Actions

Conservation Actions
Research needed into the species population and distribution..
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