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Invasive Crayfish in the Pacific Northwest
Entry ID: USGS_FRESC_Pac_NW_invasive_crayfish

Abstract: Biological invasions can have dramatic effects on freshwater ecosystems and introduced crayfish can be particularly impacting. We document crayfish distribution in three large hydrographic basins (Rogue, Umpqua, Willamette/Columbia) in the Pacific Northwest USA. We used occupancy analyses to investigate habitat relationships and evidence for displacement of native Pacifastacus leniusculus (Dana, ... View entire text

Purpose: The purpose of this study was to improve understanding of invasive crayfish in the PNW and supply information to agencies for integration into invasive species databases, management plans, and outreach efforts.
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Geographic Coverage
Spatial coordinates   
  N: 45.85   S: 42.16   E: -122.4   W: -123.7

Data Set Citation
Dataset Originator/Creator: Michael J. Adams
Dataset Title: Invasive Crayfish in the Pacific Northwest
Dataset Release Date: 2013-01-01T00:00:00.000Z
Version: Not provided
Data Presentation Form: Maps and data
Other Citation Details: This research was supported by the USGS Pacific Northwest Regional Office, State Partnership program. Private landowners and agency personnel helped locate and access sampling sites, including biologists from Oregon Dept. of Fish and Wildlife, Oregon Dept. of Environmental Quality, Long Tom Watershed Council, US Fish and Wildlife Service, US Forest Service and US Bureau of Land Management
Temporal Coverage
Start Date: 2007-07-28
Stop Date: 2010-10-12
Quality Attribute_Accuracy_Report:
Field data were entered into a Microsoft Access 2010 database. All data entries were reviewed to ensure that the data were accurately entered.

Data were checked for logical consistency by writing grouping queries to examine the proper spelling and ... View entire text
Access Constraints Data are not being made available other than to USGS for archival purposes. Contact data originator for data access.
Use Constraints Acknowledgement of the Originator and the USGS when using the data set as a source.
Data Set Progress
Data Center
Forest Rangeland Ecosystem Science Center, Biological Resources Division, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Data Center URL:

Data Center Personnel
Phone: 541-750-1032
Email: fresc_outreach at
Contact Address:
777 NW 9th Street, Suite 400
City: Corvallis
Province or State: Oregon
Postal Code: 97330
Distribution Format: Microsoft Access Database
Phone: 541-750-0980
Fax: 541-758-8806
Email: mjadams at
Contact Address:
777 NW 9th Street, Suite 400
City: Corvallis
Province or State: Oregon
Postal Code: 97330
Country: USA
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-10-28
Last DIF Revision Date: 2018-06-08