Oriental Weatherfish

Scientific Name: Misgurnus anguillicaudatus

Noel M. Burkhead - U.S. Geological SurveyCopyright Info

Windsor AguirreCopyright Info

Identification: The Oriental weatherfish has an eel-like body that is brown with greenish grey-brown markings on the back and a pale silver belly. Its mouth is small, thick-lipped, and pointed downward. It has six whisker-like sensory organs surrounding its mouth. The Oriental weatherfish is also known as dojo, weather loach, pond loach, Japanese weather fish, and Amur weather fish.

Size: This species can reach 10 inches (25 cm) in length.

Native Range: Oriental weatherfish is native to eastern Asia.

Table 1. Great Lakes region nonindigenous occurrences, the earliest and latest observations in each state/province, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Misgurnus anguillicaudatus are found here.

Full list of USGS occurrences

State/ProvinceYear of earliest observationYear of last observationTotal HUCs with observations†HUCs with observations†
Indiana200520051Little Calumet-Galien

Table last updated 9/30/2019

† Populations may not be currently present.

Means of Introduction: In Hawaii, Oriental weatherfish presumably was introduced as a food source and were spread by their use as bait fish. Introductions in the continental United States appear to be the result of releases from aquariums and escapes from fish farms.

Status: Populations are established in New York, Florida, Michigan (including Lake Michigan), Illinois, Idaho, Washington, Oregon, California, and Hawaii. This species has also been sighted in North Carolina, Louisiana, and Tennessee.

Remarks: As its name suggests, this fish becomes more active in response to atmospheric pressure changes; therefore, it frequently has been cited as a predictor of storms.

Author: Illinois-Indiana Sea Grant

Contributing Agencies:
NOAA Sea Grant GLRI Logo

Revision Date: 4/24/2012

Citation for this information:
Illinois-Indiana Sea Grant, 2019, Oriental Weatherfish: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, and NOAA Great Lakes Aquatic Nonindigenous Species Information System, Ann Arbor, MI, https://nas.er.usgs.gov/queries/greatLakes/FactSheet.aspx?SpeciesID=498&Potential=N&Type=1&HUCNumber=, Revision Date: 4/24/2012, Access Date: 10/13/2019

This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.