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Raiamas guttatus — Details

Burmese Trout learn more about names for this taxon

Overview

Comprehensive Description

Biology

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Inhabits shady areas and muddy bottoms in deep hill streams. Adults usually collected in clear water with moderate to swift currents, juveniles in quiet pools further downstream (Ref. 27732). Found in medium to large-sized rivers, flooded fields and rapid-running mountain streams (Ref. 12975). Diet consists of insects and small fishes. (Ref. 12693). One of the most delicious fish in Nepal (Ref. 9496). Rarely seen in markets.

Talwar, P.K. and A.G. Jhingran 1991 Inland fishes of India and adjacent countries. vol 1. A.A. Balkema, Rotterdam. 541 p. (Ref. 4832) http://www.fishbase.org/references/FBRefSummary.php?id=4832&speccode=1272

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Distribution

Range Description

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The species is known from northeastern India (Nagaland), Myanmar, Thailand, Laos, Cambodia, Malay peninsula, and China.

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Asia: India and Irrawaddy in Myanmar (Ref. 41236), Mekong, Chao Phraya, Salween basins and also northern Malay Peninsula (Ref. 27732).

Kottelat, M. 1998 Fishes of the Nam Theun and Xe Bangfai basins, Laos, with diagnoses of twenty-two new species (Teleostei: Cyprinidae, Balitoridae, Cobitidae, Coiidae and Odontobutidae). Ichthyol. Explor. Freshwat. 9(1):1-128. (Ref. 27732) http://www.fishbase.org/references/FBRefSummary.php?id=27732&speccode=26858

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Physical Description

Size

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Maximum size: 305 mm ---

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Max. size

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30.0 cm SL (male/unsexed; (Ref. 30857))

Baird, I.G., V. Inthaphaisy, P. Kisouvannalath, B. Phylavanh and B. Mounsouphom 1999 The fishes of southern Lao. Lao Community Fisheries and Dolphin Protection Project. Ministry of Agriculture and Forestry, Lao PDR.161 p. (Ref. 30857) http://www.fishbase.org/references/FBRefSummary.php?id=30857&speccode=52537

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Diagnostic Description

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Has a pair of short maxillary barbels (Ref. 27732).

Kottelat, M. 1998 Fishes of the Nam Theun and Xe Bangfai basins, Laos, with diagnoses of twenty-two new species (Teleostei: Cyprinidae, Balitoridae, Cobitidae, Coiidae and Odontobutidae). Ichthyol. Explor. Freshwat. 9(1):1-128. (Ref. 27732) http://www.fishbase.org/references/FBRefSummary.php?id=27732&speccode=26858

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Ecology

Habitat

Habitat and Ecology

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Habitat and Ecology

Most species have been found in shady areas and muddy bottoms in deep hill streams. Adults usually collected in clear water with moderate to swift currents, juveniles in quiet pools further downstream. Found in medium to large-sized rivers, flooded fields and rapid-running mountain streams. Diet consists of insects and small fishes. Rarely seen in markets.

Systems

Freshwater

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Environment

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benthopelagic; potamodromous (Ref. 51243); freshwater

Riede, K. 2004 Global register of migratory species - from global to regional scales. Final Report of the R&D-Projekt 808 05 081. Federal Agency for Nature Conservation, Bonn, Germany. 329 p. (Ref. 51243) http://www.fishbase.org/references/FBRefSummary.php?id=51243&speccode=4683

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Migration

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Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.

Riede, K. 2004 Global register of migratory species - from global to regional scales. Final Report of the R&D-Projekt 808 05 081. Federal Agency for Nature Conservation, Bonn, Germany. 329 p. (Ref. 51243) http://www.fishbase.org/references/FBRefSummary.php?id=51243&speccode=4683

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Conservation

Conservation Status

IUCN Red List Assessment

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Red List Category

LC

Least Concern

Red List Criteria

Version

3.1

Year Assessed

2010

Assessor/s

Vishwanath, W.

Reviewer/s

Juffe Bignoli, D., Chaudhry, S., Rema Devi, K.R. & Dahanukar, N.

Contributor/s

Molur, S.

Justification

Raiamas guttatus is a widely distributed species with no major widespread threats. Although there are some regional threats from destructive fishing practices, it is assessed as Least Concern.

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Trends

Population

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Population

There is no information on the population and its trends for this species, but survey data suggests that it is relatively widespread and common.

Population Trend

Unknown

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Threats

Threats

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Major Threats

The major threat to this species is damming, dynamiting and other destructive fishing, human interference, poisoning.

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Least Concern (LC)

IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. http://www.fishbase.org/references/FBRefSummary.php?id=57073

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Management

Conservation Actions

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Conservation Actions

Conservation is needed as the population of this species is declining in some areas. More research on impacts of threats on population and trends needed.

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Relevance to Humans and Ecosystems

Benefits

Importance

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fisheries: minor commercial

Talwar, P.K. and A.G. Jhingran 1991 Inland fishes of India and adjacent countries. vol 1. A.A. Balkema, Rotterdam. 541 p. (Ref. 4832) http://www.fishbase.org/references/FBRefSummary.php?id=4832&speccode=1272

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Wikipedia

Burmese trout

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Burmese trout (Raiamas guttatus) is a species of ray-finned fish in the genus Raiamas.

References

^ Froese, Rainer, and Daniel Pauly, eds. (2006). "Raiamas guttatus" in FishBase. April 2006 version.

This Cyprinidae-related article is a stub. You can help Wikipedia by expanding it.

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