This is an ongoing Bonneville Power Administration funded project to annually collect, PIT tag, and release wild Chinook salmon parr in up to 15 streams of the Salmon River drainage in Idaho and subsequently monitor these fish through in-stream monitoring sites and downstream dams. The overall study objectives are to assess the migrational characteristics and estimate parr-to-smolt survival for Snake River wild spring/summer Chinook salmon smolts at Lower Granite Dam, characterize parr and smolt survival and movement out of natal rearing areas of selected streams and examine the relationships between fish movement, environmental conditions within the streams, and weather and climate data. This project also collects parr-to-smolt growth information on previously PIT-tagged wild Chinook salmon parr at the Lower Granite Dam sort-by-code PIT detection system each spring. A goal of this study is to characterize run-timing of wild fish to determine if consistent patterns are apparent and to provide daily information for real-time management decisions during the smolt out-migrations. All tagging data for wild Chinook parr and juvenile steelhead tagged and released.

This data is a compilation of fishery monitoring data collected by state agencies over several decades in tailwaters downriver of dams in Colorado, Utah, Montana, Wyoming, Idaho, New Mexico, Arizona, California, and Oregon. Specifically, the data contained herein is summary data used in four generalized linear mixed models that were developed to assess the biological and hydrologic factors that influence rainbow and brown trout recruitment and adult size in tailwaters across the western United States.

This data is a compilation of fishery monitoring data collected by state agencies over several decades in tailwaters downriver of dams in Colorado, Utah, Montana, Wyoming, Idaho, New Mexico, Arizona, California, and Oregon. Specifically, the data contained herein is summary data used in four generalized linear mixed models that were developed to assess the biological and hydrologic factors that influence rainbow and brown trout recruitment and adult size in tailwaters across the western United States.

Fish entrainment monitoring at the Spring Head of Old River Barrier, in the south Sacramento-San Joaquin Delta. This project worked closely with the Vernalis Adaptative Management Plan (VAMP) studies. Fish data was collected using fyke nets attached to culverts in years that the barrier was installed and Kodiak Trawls in years with no barrier. Dataset also includes limited fish sampling using various methods prior to VAMP. Dataset spans 1992-2007. This data and metadata were submitted by California Department of Fish and Wildlife (CDFW) Staff though the Data Management Plan (DMP) framework with the id: DMP000386. For more information, please visit https://wildlife.ca.gov/Data/Sci-Data.

Water Quality and Fish Data: Yukon-Charley Rivers National Preserve, Wrangell St. Elias National Park and Preserve and Denali National Park and Preserve, Alaska, 2002-2003. These data are believed to have been collected as part of Inventory and Monitoring efforts. No supporting documentation exists.

Changes in size and age at maturity of chum salmon (Oncorhynchus keta) were monitored for two locations in North America. Chum salmon spawners returning to Fish Creek, southeastern Alaska, were sampled yearly from 1972 through 1996. Spawners retuning to the Quilcene National Fish Hatchery in Hood Canal, Washington, were sampled yearly from 1973 through 1996. Size at maturity of both populations declined significantly from about 1980 to the mid-1990s. Age at maturity increased during this time. These changes were associated with a major ocean climate regime shift in the North Pacific Ocean that occurred in 1976-77. Population abundance of chum salmon increased greatly after the regime shift, especially in Asia. Similar changes in size and age at maturity occurred in Asian chum salmon; because the range of North American and Asian chum salmon overlaps on the high seas, these changes are discussed in relation to possible density-dependent population factors. Since the mid-1990s, size at maturity and population abundance have increased, possibly indicating another climate change in the North Pacific Ocean.

Field monitoring data from 2022 work at Theodore Roosevelt NP. Monitoring along Little Missouri River is conducted by the Northern Great Plains Inventory and Monitoring Network, beginning in 2022.

Comma separated values for monthly water chemistry data and water quality field parameters.