Common name: Olympic Mudminnow
available through www.itis.gov
Identification: Wydoski and Whitney (1979); Page and Burr (1991).
Size: to 9 cm TL (Wydoski and Whitney 2003)
Native Range: Coastal lowlands of Olympic Peninsula, Washington, from Ozette Lake and Queets River drainage to upper Chehalis River drainage (Mongillo and Hallock 1999). Occasionally found in lower Deschutes River (Puget Sound drainage), apparently as a result of floodwater exchange with Chehalis River (Wydoski and Whitney 1979; Page and Burr 1991).
Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, 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 Novumbra hubbsi are found here.
Table last updated 2/27/2023
† Populations may not be currently present.
Ecology: Generally found in lowlands in slow moving streams, marshes, ponds, wetlands, and other habitats with low water flow, muddy bottoms, and abundant aquatic vegetation. Primarily consumes benthic and aquatic invertebrates (ostracods, isopods, oligochaetes, mysids, mollusks, and insect larvae) (Mongillo and Hallock 1999).
Means of Introduction: Unknown.
Status: Established in Washington.
Impact of Introduction: The impacts of this species are currently unknown, as no studies have been done to determine how it has affected ecosystems in the invaded range. The absence of data does not equate to lack of effects. It does, however, mean that research is required to evaluate effects before conclusions can be made.
References: (click for full references)
Mongillo, P.E., and M. Hallock. 1997. Distribution and habitat of native nongame stream fishes of the Olympic Peninsula. Washington Department of Fish and Wildlife Technical Report #FRD 97-05. 45 pp.
Mongillo, P.E., and M. Hallock. 1999. Washington state status report for the Olympic mudminnow. Washington Department of Fish and Wildlife. 36 pp.
Page, L.M., and B.M. Burr. 1991. A field guide to freshwater fishes of North America north of Mexico. The Peterson Field Guide Series, volume 42. Houghton Mifflin Company, Boston, MA.
Trotter, P.C., B. McMillan, and D. Kappes. 2000. Occurrence of the Olympic mudminnow on the east side of the Puget Trough. Northwestern Naturalist 81(2):59-63.
Wydoski, R.S., and R.R. Whitney. 1979. Inland fishes of Washington. University of Washington Press, Seattle, WA.
Wydoski, R.S., and R.R. Whitney. 2003. Inland fishes of Washington. Second edition. University of Washington Press, Seattle, WA.
Matt Neilson, and Pam Fuller
Revision Date: 3/5/2012
Peer Review Date: 3/5/2012
Matt Neilson, and Pam Fuller, 2023, Novumbra hubbsi Schultz, 1929: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=976, Revision Date: 3/5/2012, Peer Review Date: 3/5/2012, Access Date: 5/30/2023
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.