Disclaimer:

The Nonindigenous Occurrences section of the NAS species profiles has a new structure. The section is now dynamically updated from the NAS database to ensure that it contains the most current and accurate information. Occurrences are summarized in Table 1, alphabetically by state, with years of earliest and most recent observations, and the tally and names of drainages where the species was observed. The table contains hyperlinks to collections tables of specimens based on the states, years, and drainages selected. References to specimens that were not obtained through sighting reports and personal communications are found through the hyperlink in the Table 1 caption or through the individual specimens linked in the collections tables.



Salmo salar × trutta
Salmo salar × trutta
(Sambrown)
Fishes
Exotic Hybrid
Collection Info
Point Map
Species Profile
Animated Map

Copyright Info
Salmo salar × trutta
Common name: Sambrown
Injurious: This species is listed by the U.S. Fish and Wildlife Service as injurious wildlife.

Native Range:
Hydrologic Unit Codes (HUCs) Explained
Interactive maps: Point Distribution Maps

Nonindigenous Occurrences:

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 Salmo salar × trutta are found here.

StateFirst ObservedLast ObservedTotal HUCs with observations†HUCs with observations†
CT197119791New England Region

Table last updated 1/2/2025

† Populations may not be currently present.
Other Resources:
Fact Sheet for Salmo salar - USGS Nonindigenous Aquatic Species Database

Fact Sheet for Salmo trutta - USGS Nonindigenous Aquatic Species Database


 Revision Date: 5/9/2019
Peer Review Date: 12/5/2003

Citation Information:
U.S. Geological Survey, 2025, Salmo salar × trutta: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=930, Revision Date: 5/9/2019, Peer Review Date: 12/5/2003, Access Date: 1/3/2025

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.

Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/3/2025].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.