|Scientific Name:||Microrasbora rubescens Annandale, 1918|
|Red List Category & Criteria:||Endangered B1ab(iii,v)+2ab(iii,v) ver 3.1|
|Reviewer(s):||Kullander, S.O. & Allen, D.J.|
The species is only known from Lake Inlé in Myanmar, where it is impacted by introduced species of fish, as well as a decline in the area and extent of suitable habitat. It is assessed as Endangered on the basis of a single location, restricted extent of occurrence (EOO) and area of occupancy (AOO), and decline in habitat quality and population size as a result of the impacts of introduced species, suspected over-harvesting for the aquarium trade, and the impacts of pollution. The population decline is inferred, there are no survey data at present to support it, and research is needed. The species is likely to qualify for a higher threat category if data confirm the population decline or show the area of suitable habitat to be as restricted as suggested by Sidle et al. (2007).
|Range Description:||this species is endemic to Inlé Lake in Shan State, Myanmar. The species has an extent of occurrence of ca. 116 km², based on the area of the lake, although the current area of open water in the lake has declined greatly in recent decades (Sidle et al. 2007) and is now 46.7 km².|
Native:Myanmar (Myanmar (mainland))
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||The species population has declined in the lake.|
|Current Population Trend:||Decreasing|
|Habitat and Ecology:||This fish inhabits the midwater and margins of the lake, and is associated with submerged vegetation. It aggregates in large schools.|
|Continuing decline in area, extent and/or quality of habitat:||Yes|
|Use and Trade:||It is being harvested for the aquarium trade and local consumption.|
The species is regularly harvested for aquarium trade, which may slightly impact its population. The introduction of non-native (to the lake) fish species, including farmed species (e.g., the larger Parambassis spp.) and tilapine fish are major threats, both as as predator and competitor. Some of the introduced native fishes access the lake as a result of raised water levels from the downstream dam.
Pollution from a range of sources impacts the lake; sedimentation and agricultural pollution from the surrounding drainage, as well as direct pollution inputs form the growing human settlements around the lake. Water hyacinth has reduced the open water areas of the lake, as has water abstraction and sedimentation.
|Conservation Actions:||Research into the impact of threats on the species habitat and populations is needed.|
|Citation:||Vidthayanon, C. 2011. Microrasbora rubescens. The IUCN Red List of Threatened Species 2011: e.T181058A7657299.Downloaded on 23 September 2017.|
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