This dataset represents habitat measurements and fish sampling (https://data.kingcounty.gov/Environment-Waste-Management/Fish-data-for-Juvenile-Pacific-salmonid-habitat-us/hznk-dan4) from the Snoqualmie and Green rivers in the Puget Sound region of Washington State, USA. Using a cataraft mounted with a boat electrofisher, these data were collected between late winter and late spring from 2016 through 2022. Measurements were of 25-m-long transects along six different edge habitat types in the two rivers. The edge habitats represented in this dataset are ‘armored banks’, ‘biorevetment banks’, ‘unarmored banks’, ‘bars’, ‘backwaters’, and ‘side channels’. These data were collected as part of monitoring of eight habitat restoration or bioengineered bank stabilization projects in the Snoqualmie and Green rivers, along with three more general studies of fish-habitat relationships in the two rivers. These data are analyzed and presented in the journal article “Juvenile Pacific salmonid habitat use in two Puget Sound lowland Rivers”, published in the Transactions of the American Fisheries Society (https://afspubs.onlinelibrary.wiley.com/doi/10.1002/tafs.10457). All data were collected by the King County Water and Land Resources Division, Science and Technical Support Section.

Habitat data were collected during the day and include measurements of the width of low-velocity habitat (≤ 0.45m/s) and water depth along each transect. Fish sampling occurred after darkness fell the evening following habitat data collection. Fish data include the number of each species sampled at each transect and the number of seconds each transect was electrofished. For additional details on the data and collection methods, please see the associated journal article or contact the article authors: Aaron David (adavid@kingcounty.gov), Christopher Gregersen (chris.gregersen@kingcounty.gov), Joshua Kubo (josh.kubo@kingcounty.gov), Daniel Lantz (dan.lantz@kingcounty.gov), and James Bower (james.bower@kingcounty.gov).