Overview

Comprehensive Description

Biology

Adults occur in a shallow lake with clear water and moderate aquatic vegetation (Ref. 2847). Eggs are guarded and fanned by the male parent (Ref. 205).
  • Allen, G.R. 1991 Field guide to the freshwater fishes of New Guinea. Publication, no. 9. 268 p. Christensen Research Institute, Madang, Papua New Guinea. (Ref. 2847)
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Distribution

Range Description

Varia jamoerensis is endemic to Lake Yamur situated in the middle of the isthmus that joins the main part of Irian Jaya with the Vogelkop Peninsula.
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Asia: known only from Lake Jamur in the center of the narrow isthmus that separates the Bomberai and Vogelkop peninsulas (Irian Jaya, Indonesia) from the remainder of New Guinea.
  • Allen, G.R. 1991 Field guide to the freshwater fishes of New Guinea. Publication, no. 9. 268 p. Christensen Research Institute, Madang, Papua New Guinea. (Ref. 2847)
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Lake Yamur, Irian Jaya, Indonesia.
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Physical Description

Morphology

Dorsal spines (total): 12 - 14; Dorsal soft rays (total): 10 - 11; Analspines: 3; Analsoft rays: 8 - 9
  • Allen, G.R. 1991 Field guide to the freshwater fishes of New Guinea. Publication, no. 9. 268 p. Christensen Research Institute, Madang, Papua New Guinea. (Ref. 2847)
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Size

Maximum size: 85 mm SL
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Max. size

8.5 cm SL (male/unsexed; (Ref. 2847))
  • Allen, G.R. 1991 Field guide to the freshwater fishes of New Guinea. Publication, no. 9. 268 p. Christensen Research Institute, Madang, Papua New Guinea. (Ref. 2847)
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Ecology

Habitat

Amur River Benthopelagic Habitat

This taxon is one of a number of benthopelagic species in the Amur River system. Benthopelagic river fish are found near the bottom of the water column, 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.

Other large benthopelagic river fish of the Amur Basin is the 200 cm yellowcheek (Elopichthys bambusa) and the 122 cm Mongolian redfin (Chanodichthys mongolicus)

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Habitat and Ecology

Habitat and Ecology
The freshwater lake habitat of this species is 6-7 km in diameter.

Systems
  • Freshwater
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Environment

benthopelagic; non-migratory; freshwater
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Life History and Behavior

Life Cycle

Eggs are guarded and fanned by the male parent (Ref. 205).
  • Breder, C.M. and D.E. Rosen 1966 Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p. (Ref. 205)
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
VU
Vulnerable

Red List Criteria
A2d

Version
2.3

Year Assessed
1996
  • Needs updating

Assessor/s
Allen, G.

Reviewer/s

Contributor/s

History
  • 1994
    Rare
    (Groombridge 1994)
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Population

Population Trend
Unknown
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Threats

Vulnerable (VU) (A2d)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest
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Wikipedia

Yamur Lake grunter

The Yamur Lake grunter or Jamur Lake grunter (Variichthys jamoerensis) is a species of fish in the Terapontidae family. It is endemic to Lake Yamur (alternatively spelled Jamur) on West Papua in Indonesia.[1][2]

References[edit]

  1. ^ Allen, G. 1996. Varia jamoerensis. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. Downloaded on 26 June 2013.
  2. ^ Froese, R. and D. Pauly, Eds. Variichthys jamoerensis. FishBase. 2013.
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