Richmond, J.Q. Gould, P.R. Fisher, R.N. 20240904 spreadsheet ScienceBase U.S. Geological Survey data release https://doi.org/10.5066/P13PNXU5 Jonathan Q. Richmond Phillip R. Gould Jennifer Pareti Andrew Aitken Eric Morrissette Adam R. Backlin Chris Dellith Robert N. Fisher Unknown publication Aquatic Conservation: Marine and Freshwater Ecosystems online These data were collected as part of a trapping effort for endangered threespine stickleback in Soledad Canyon, Santa Clara River watershed in California. The two-year survey effort took place in 2021 and 2022. We reported survey reach identities, stream sections, and numbers of fish captured per trapping effort. The data were collected as part of a monitoring effort for a population of endangered threespine stickleback during drought conditions. 20210601 20221215 ground condition Complete None planned United States, California, Los Angeles County, Santa Clara River watershed, Soledad Canyon -118.3934783935547 -118.19847106933595 34.45844651413059 34.412574601595 ISO 19115 Topic Category biota USGS Thesaurus droughts endangered species None hydrology Mediterranean Climate dryland river ecosystem coast ecoregion stickleback USGS Metadata Identifier USGS:66b66fb7d34eebcf8bb3954a Common geographic areas Santa Clara River, CA Soledad Canyon Southern California California Integrated Taxonomic Information System (ITIS) threespine stickleback U.S. Geological Survey 2013 Online Database https://doi.org/10.5066/F7KH0KBK www.itis.gov expert identifier Kingdom Animalia animals Subkingdom Bilateria triploblasts Infrakingdom Deuterostomia Phylum Chordata chordates Subphylum Vertebrata vertebrates Infraphylum Gnathostomata Superclass Actinopterygii ray-finned fishes spiny rayed fishes Class Teleostei Superorder Acanthopterygii Order Gasterosteiformes pipefishes sticklebacks Suborder Gasterosteoidei Family Gasterosteidae sticklebacks Genus Gasterosteus threespine sticklebacks Species Gasterosteus aculeatus Alaskan stickleback threespine stickleback TSN: 166365 No access constraints. Please see 'Distribution Info' for details. No use constraints. Questions pertaining to appropriate use or assistance with understanding limitations or interpretation of the data are to be directed to the individuals/organization listed in the Point of Contact section. U.S. Geological Survey, Western Ecological Research Center Data Manager mailing address

3020 State University Drive, Modoc Hall, suite 4004

Sacramento CA 95819 US 279-782-0904 gs-b-werc_data_management@usgs.gov U.S. Fish and Wildlife Service MacOS 13.6.7 (22G720), Microsoft Excel v16.86 The data reflect 'true' values recorded at the time they were collected. They were initially hand-written in the field then entered manually into MS Excel. The data have a 1:1 correspondence with the details I have provided. The data represent occurrences in fixed areas that were pre-defined, georeferenced trapping stations within Soledad Canyon, Santa Clara River, CA. Individual traps were georeferenced using a handheld GPS unit using the coordinate system NAD83 decimal degrees. Accuracy was within 3m. We conducted field surveys in Soledad Canyon over a two-year period (2021- 2022), with three survey teams collecting data in six different stream sections. We began by dividing each stream section into a pre-defined set of reaches to which one team was assigned to survey three times during both years. Surveys were spaced roughly evenly apart between the early summer and winter months (June through December), with each team having a two-week window around specified dates to complete them. The last surveys in December were intended to take place before any major winter storms, representing the driest conditions possible in any given year (although storms sometimes arrive earlier than expected). Surveys consisted of placing one unbaited minnow trap (Promar® Collapsible Bait Trap, 41 x 24.5 x 24.5 cm) every 10 m per 100m stream reach, in line with the flow such that fish passively swam into them. Traps were removed three hours after their initial placement, beginning at approximately 10AM for all surveys. Based on prior field efforts, conditions of the streamside vegetation, and high temperatures in the summer months, it was determined that three reaches (n = 30 traps total, or three ~100m reaches) could reasonably be surveyed during a typical day’s field work. Numbers of G. aculeatus and other fish species were reported for each trap at the end of each survey, as well as any others observed incidentally outside the traps. We recorded age class for G. aculeatus, with fish <42 mm classified as young-of-year and >42 mm as adults (Baskin 1974). In some cases, stream depth was insufficient to submerge the trap entry (i.e., <11.5 cm) but still deep enough for fish to occupy the reach, so surveyors instead performed a visual count across the 10m reach. We referred to these as ‘no trap (NT) visuals’ and treated them as equivalent to the trap data for statistical analyses. If the stream braided within a 100m reach, surveyors selected a single braid that appeared suitable for G. aculeatus and surveyed only that braid. 20221215 0.0197715691 0.0238562020 Decimal seconds North_American_Datum_1983 GRS_1980 6378137.0 298.257222101 FINAL_UTS_TrappingData.csv Comma Separated Value (CSV) file containing data. Producer Defined site Survey reaches within Soledad Canyon Producer Defined River's End River's End survey reaches Producer defined USFS Kiosk USFS Kiosk survey reaches Producer defined Stickleback Ranch Stickleback Ranch survey reaches Producer defined Robin's Nest Robin's Nest survey reaches Producer defined year Survey year Producer Defined 2021 2022 reach 100 meter stream segment Producer Defined 1 3 trap Trap site, located every 10 meters within a reach Producer Defined 1 30 date Date the survey was conducted Producer Defined << empty cell >> No Data Producer defined 20210712 20221213 lat latitude coordinate in nad83 decimal degrees Producer Defined << empty cell >> No Data Producer defined 34.43251 34.44781 long longitude coordinate in in nad83 decimal degrees Producer Defined << empty cell >> No Data Producer defined -118.36605 -118.27457 juv the count of juvenile fish less than 42 mm in length Producer Defined << empty cell >> No Data Producer defined nt no trap Producer defined 0 17 adult the count of adult fish more than 42 mm in length Producer Defined << empty cell >> No Data Producer defined nt no trap Producer defined 0 30 visual number of fish visually observed near a trap at the end of each survey Producer Defined << empty cell >> No Data Producer defined 0 31 total total number of fish visually counted near a trap at the end of a survey and the number of fish in the trap (visual + trapped) Producer Defined 0 34 total_trap total number of trapped fish (no visual) Producer Defined nt no trap Producer defined 0 31 other notes Producer Defined notes that were observed if there wasn't sufficient surface flow for trapping or visual observations flowclass flow scored categorically Producer Defined 1 normal flow and depth; trap placed Producer defined 2 depth too shallow to place a trap; visual count only Producer defined 3 streambed completely dry Producer defined 4 evapotranspiration occurred, leaving the trap on dry streambed by the time the survey ended Producer defined dryobs presence of surface water, regardless of depth Producer Defined 0 yes Producer defined 1 no Producer defined UTS_stream_attributes.csv Comma Separated Value (CSV) file containing data. Producer Defined stream section Individual stream sections, in order from lowest to highest elevation in Soledad Canyon Producer Defined River's End CDFW River's End downstream section, surveyed by the California Dept. of Fish and Wildlife Producer defined River's End USFWS River's End upstream section, surveyed by the U.S. Fish and Wildlife Service Producer defined dry reach 1 lower dry reach below near the tunnel on Soledad Canyon Rd. Producer defined dry reach 2 upper dry reach near Cali Lake Producer defined USFS Kiosk U.S. Forest Service kiosk reach Producer defined Stickleback Ranch Stickleback Ranch reach Producer defined Robin's Nest Robin's nest reach Producer defined distance total distance (m) of the stream section Producer Defined 204 1002 ave_elev average elevation (m) across the stream section Producer Defined 530 673 elev gain/loss average gain or loss in elevation (m) across the stream section Producer Defined 8.8 36.2 max slope maximum slope of the stream section Producer Defined 7.0 26.8 ave slope average slope of the stream section Producer Defined 2.0 5.3 GS ScienceBase U.S. Geological Survey mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 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 on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. CSV https://doi.org/10.5066/10.5066/P13PNXU5 None 20240904 Jonathan Richmond U.S. Geological Survey, Western Ecological Research Center Biologist mailing

4165 Spruance Rd. Suite 200

San Diego CA 92101 USA 619-225-6434 jrichmond@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata FGDC-STD-001.1-1999