Percopsis transmontana, the sand roller, is a species of percopsiform fish endemic to the Columbia River drainage in the northwestern United States. This species grows to a length of 9.6 centimetres (3.8 in) TL. Sand rollers can live up to 6 years in slow-moving, sandy-bottomed streams and rivers among vegetation. Their diet includes flies and Trichoptera, although juveniles also have been known to eat crustacean zooplankton.

References

  1. ^ NatureServe (2013). "Percopsis transmontana". IUCN Red List of Threatened Species. 2013: e.T202614A18230489. doi:10.2305/IUCN.UK.2013-1.RLTS.T202614A18230489.en. Retrieved 19 November 2021.


Allikas: http://en.wikipedia.org/wiki/Sand_roller
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