Jacob R. Krause Rachael K. Paul-Wilson Brian S. Hayes 20221021 tabular digital data U.S. Geological Survey, Western Fisheries Research Center, Seattle, Washington U.S. Geological Survey https://doi.org/10.5066/P14NTJSJ Data were collected as part of a long-term capture-recapture program to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags during their spawning migrations in each year since 1995. Suckers are also tagged during summer juvenile sampling in Upper Klamath Lake and Clear Lake, and fall adult sucker sampling in Clear Lake. PIT tagged species were encountered in netting efforts, remote transceivers, and active scanning on bird colonies across the Upper Klamath River Basin (predominately Upper Klamath Lake and Clear Lake Reservoir). The data includes detections for endangered suckers, but also salmonids and other PIT tagged aquatic species that were encountered. While previous versions are available through ScienceBase, all the records in previous versions can be found in version 7.0 which is the most up to date and accurate. There may be uncorrected errors in previous versions and significant changes are noted in the "Version 7.0" text file: First release: 2022 Revised: August 2023 (ver. 2.0) Revised: April 2024 (ver. 3.0) Revised: August 2024 (ver. 4.0) Revised: February 2025 (ver. 5.0) Revised: August 2025 (ver. 6.0) Data were collected as part of a long-term capture-recapture program to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags since 1995. In addition, PIT tags implanted by other researchers are often encountered in capture and redetection efforts. Encounter information included in this data release can be used to inform researchers in the basin about the movement and survival of aquatic species released in the Klamath Basin. 19930930 20260319 publication date In work Annually Upper Klamath River Basin -122.3438 -121.0295 43.0689 41.7856 ISO 19115 Topic Category inlandWaters USGS Thesaurus ecology endangered species animal tracking salmonids suckers USGS Metadata Identifier USGS:69d9284ab66b0192e7e60250 Common geographic areas Upper Klamath Lake Clear Lake National Wildlife Refuge None. Please see 'Distribution Info' for details. None. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. Jacob R. Krause U.S. Geological Survey Supervisory Research Fish Biologist mailing address

6600 Washburn Avenue

Klamath Falls OR 97603 US 1-888-275-8747 jrkrause@usgs.gov David A. Hewitt Brian S. Hayes Alta C. Harris Eric C. Janney Caylen M. Kelsey Russell W. Perry Summer M. Burdick 2021 publication n/a US Geological Survey https://doi.org/10.3133/ofr20211043 David A. Hewitt Eric C. Janney Brian S. Hayes Alta C. Harris 2018 publication n/a US Geological Survey https://doi.org/10.3133/ofr20181064 Alta C Harris Jacob R Krause Brian Hayes 2022 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/p9o2c4sk Jacob R Krause Rachael K Paul-Wilson Brian Hayes Alta C Harris 2023 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/p9l1gpki Jacob R Krause Rachael K Paul-Wilson Brian Hayes 2024 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/p1385sv2 Jacob R Krause Rachael K Paul-Wilson Brian Hayes 2024 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/p16kzhpv Jacob R Krause Rachael K Paul-Wilson Brian Hayes 2025 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/p1zdktqg Jacob R Krause Rachael K Paul-Wilson Brian Hayes 2025 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/P13W2IHB No formal attribute accuracy tests were conducted No formal logical accuracy tests were conducted Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Data are stored in an MS SQL Server database at the Klamath Falls Field Station. Data was formatted using both Python and R for this release. Records were selected for tags with an encounter history including detection or release by non USGS entities. Detection or release by other entities was determined by information shared with USGS or by encounter histories that did not include a capture where USGS implanted a PIT tag. 20260410 DataRelease_202604.csv Comma Separated Value (CSV) file containing data. Producer Defined DateTime Timestamp of the encounter Producer Defined Timestamp in YYYY-mm-dd HH:MM:SS format Pacific Standard Time PITtag The PIT tag encountered Producer Defined The tag code in hexadecimal format without country code. CommonName The species of the animal encountered Producer Defined LRS Lost River sucker Deltistes luxatus Producer defined KLS Klamath largescale sucker Catostomus snyderi Producer defined rainbow trout/redband Oncorhynchus mykiss Producer defined unidentified sucker A sucker, not identifiable Producer defined Chinook Salmon Oncorhynchus twshawytscha Producer defined SNS shortnose sucker Chasmistes brevirostris Producer defined Klamath Lake lamprey A Klamath Lake lamprey, not identifiable Producer defined not identified USGS has no capture records, only remote detections so no species information is available. Producer defined steelhead trout Anadromous form of Oncorhynchus mykiss Producer defined sockeye salmon Oncorhynchus nerka Producer defined "KLSxSNS sucker, hybrid?" A hybrid between Klamath largescale sucker and shortnose sucker with predominately Klamath largescale characteristics Producer defined brown trout Salmo trutta Producer defined Bonneville cutthroat trout Oncorhynchus clarkii utah Producer defined coho salmon Oncorhynchus kisutch Producer defined Upper Klamath Lake lamprey An Upper Klamath lake lamprey, not identifiable Producer defined Clear Lake hitch Lavinia exilicauda chi Producer defined LRSxKLS sucker, hybrid? A hybrid between lost River sucker and Klamath largescale sucker with predominately Klamath largescale sucker characteristics Producer defined SNSxLRS sucker, hybrid? A hybrid between shortnose sucker and Lost River sucker with predominately shortnose sucker characteristics Producer defined SNSxKLS sucker, hybrid? A hybrid between shortnose sucker and Klamath largescale sucker with predominately shortnose sucker characteristics Producer defined Unidentified salmon A salmon, not identifiable Producer defined Unidentified trout A trout, not identified. Producer defined LRSxSNS sucker, hybrid? A hybrid between Lost River sucker and shortnose sucker with predominately Lost River sucker characteristics Producer defined KLSxSNS sucker, hybrid? A hybrid between Klamath largescale sucker and shortnose sucker with predominately Klamath largescale characteristics Producer defined KLSxLRS sucker, hybrid? A hybrid between Klamath largescale sucker and Lost River sucker with predominately Klamath largescale sucker characteristics Producer defined KLSxKSS sucker, hybrid? A hybrid between Klamath largescale sucker and Klamath smallscale sucker with predominately Klamath largescale sucker characteristics Producer defined Sex The sex of the animal encountered Producer Defined Male Male Producer defined Female Female Producer defined Unknown Sex could not be determined Producer defined Length The fork length in mm Producer Defined NA No Data Producer defined 68 830 StationName The name of the location where the animal was encountered Producer Defined A unique identifier for the location of the encounter. StationName's preceded by JUV: were encountered in the USGS juvenile sucker monitoring program. StationName's preceded by Remote: were encountered on USGS remote PIT tag antennas. For generic StationNames (e.g., Tule Lake or A Quadrant Clear Lake), the latitude and longitude reflect the center of that spatial area or waterbody. The text "(Avian)" was added to the end of all bird colony sites in the StationName column to indicate these tags were found on land and detections represent dead fish. All U.S. Fish and Wildlife Service remote sites are preceded by the text "Remote FWS". Latitude Latitude of the StationName in decimal degrees (WGS 84 coordinate system). Producer Defined << empty cell >> No Data Producer defined 41.51564 42.606897 Longitude Longitude of the StationName in decimal degrees (WGS 84 coordinate system). Producer Defined << empty cell >> No Data Producer defined -122.39223 -120.849 CountryCode The country code of the tag encountered. Producer Defined << empty cell >> No Data Producer defined 3DD 3DD Country Code Producer defined 3D9 3D9 Country Code Producer defined 384 384 Country Code Producer defined 000 000 Country Code Producer defined 3D6 3D6 Country Code Producer defined 3CC 3CC Country Code Producer defined TagType The type of PIT tag encountered Producer Defined << empty cell >> No Data Producer defined 4 - 134 KHz Unencrypted A 134 KHz unencrypted PIT tag Producer defined 6 - Half Duplex The type of PIT tag encountered Producer defined 5 - 125 KHz Biomark Unencrypted A 125 KHz unencrypted PIT tag produced by Biomark Producer defined 3 - 125 KHz Encrypted A 125 KHz encrypted PIT tag produced by AVID Producer defined 2 - 125 KHz AVID Unencrypted A 125 KHz unencrypted PIT tag produced by AVID Producer defined 3 - 125 KHZ Encrypted A 125 KHz encrypted PIT tag produced by AVID Producer defined U.S. Geological Survey - ScienceBase mailing address

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Denver CO 80225 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Digital Data https://doi.org/10.5066/xxxx None 20260416 Jacob R. Krause U.S. Geological Survey Supervisory Research Fish Biologist mailing address

6600 Washburn Way

Klamath Falls OR 97603 US 1-888-275-8747 jrkrause@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata FGDC-STD-001.1-1999