Physical and chemical changes affect the biota within urban streams at varying scales ranging from individual organisms to populations and communities creating complex interactions that present challenges for characterizing and monitoring the impact on species utilizing these freshwater habitats. Salmonids, specifically cutthroat trout (Oncorhynchus clarkii) and coho salmon (Oncorhynchus kisutch), extensively utilize small stream habitats influenced by a changing urban landscape. This study used a comprehensive fish health assessment concurrent with the U.S. Geological Survey’s Pacific Northwest Stream Quality Assessment in 2015 to quantifiy impacts from disease in juvenile coho and cutthroat salmon, impacts to coho salmon growth within the context of environmental and ecological influences, and identify physiological responses in coho salmon from pollution. The data included in this release informed a study of the influence of near-term environmental condition on the growth of juvenile coho salmon (Oncorhynchus kisutch). It includes the inputs necessary for bioenergetic growth modeling and the output of those models.

Juvenile coho salmon seek slow velocity areas as rivers rise during storm events. Studies have shown significant increase in juvenile coho salmon growth and survival when they have access to slow water refuge in off-channel ponds during these storms. In addition, off channel features also provide habitat for several other animals including reptiles, amphibians and numerous bird species. In 2014, Humboldt Redwood Company (HRC) identified an abandoned overflow channel that had the potential to become off channel habitat in Lawrence Creek located within the Van Duzen River watershed and asked the National Marine Fisheries Service (NMFS) to partner on the project. NMFS conducted the physical surveys, created the design, and a small competitive internal grant from NOAA provided funding for part of the project construction. HRC worked on the permits, donated heavy equipment and operators as well as several large logs with root wads to build the instream structures.

This data set is an extract of the California Watershed (calwater) dataset. It has been generalized to hydrologic sub-areas for those watersheds that are considered part of the historical coho salmon range.

This data set is an extract of the California Watershed (calwater) dataset. It has been generalized to hydrologic sub-areas for those watersheds that are considered part of the historical coho salmon range.

This folder contains data in three parts. The juvenile coho salmon abundance and survival data consists of fish survey data and the associated analysis, including documentation of the analysis code, methods, and protocols used. Habitat survey data consists of both reach-level (~100 meter sections) and continuous (watershed scale) surveys. The summaries item and its contents include summaries produced from fish and habitat surveys conducted in Mason Creek, tributary of the East Fork Lewis River, SW Washington, during summer of 2017.

This folder contains data in three parts. The juvenile coho salmon abundance and survival data consists of fish survey data and the associated analysis, including documentation of the analysis code, methods, and protocols used. Habitat survey data consists of both reach-level (~100 meter sections) and continuous (watershed scale) surveys. The summaries item and its contents include summaries produced from fish and habitat surveys conducted in Mason Creek, tributary of the East Fork Lewis River, SW Washington, during summer of 2017.

This dataset provides nine tables of data from an experimental study in which juvenile Coho Salmon (Oncorhynchus kisutch) were reared in floating net pens (limnocorrals) and exposed to Elodea spp. (a potential invasive species in high latititude lakes) and native aquatic vegetation. Data include: (1) coho salmon body, otolith, and stable isotope measurements, (2) abundance of macroinvertebrates, (3) zooplankton, (4) periphyton, (5) aquatic vegetation, (7) measurement of chlorphyll A, (8) dissolved oxygen, and (9) water temperature.

This dataset provides nine tables of data from an experimental study in which juvenile Coho Salmon (Oncorhynchus kisutch) were reared in floating net pens (limnocorrals) and exposed to Elodea spp. (a potential invasive species in high latititude lakes) and native aquatic vegetation. Data include: (1) coho salmon body, otolith, and stable isotope measurements, (2) abundance of macroinvertebrates, (3) zooplankton, (4) periphyton, (5) aquatic vegetation, (7) measurement of chlorphyll A, (8) dissolved oxygen, and (9) water temperature.

Chinook Salmon (Oncorhynchus tshawytscha) are an important commercial, subsistence, and recreational fishery resource in Alaska, and recent population declines have resulted in closures of some Chinook Salmon fisheries. Research into environmental factors involved in the decline of salmon stocks has exposed information gaps regarding fine-scale freshwater habitat quality known to influence Chinook Salmon productivity. We developed spatially-explicit intrinsic habitat potential models for Chinook Salmon freshwater spawning and rearing life-stages based on geomorphic stream network attributes (e.g., gradient, mean annual flow, valley bottom width). Model predictions were applied to individual stream reaches and summarized across synthetic stream networks derived from high-resolution (5-meter) digital elevation models covering the Yukon River drainage west of the US-Canada border and the entire Kuskokwim River drainage (total stream length ~667,000 km across 1.3 million km2 area). Vector spatial datasets include unique reach contributing area (uRCA) and unique reach contributing area valley bottom (uRCA VB) polygons, and confluence to confluence streamline edges derived from the NetMap synthetic streamlines product. Tabular data includes a collection of stream attributes summarized by uRCA or uRCA VB polygons, and habitat model results derived from these stream attributes. See metadata records for individual data elements for a description of input sources, software environments, data quality, processing steps, and attribute information. Approximately 87,500 and 39,500 stream km were predicted to represent moderate to high (index scores 0.6-1.0) Chinook Salmon rearing and spawning habitat suitability, respectively. Our high-resolution, spatially explicit dataset provides many options for summarizing and visualizing habitat suitability across areal units (e.g., river basins, land management boundaries) and assessing the potential for high suitability habitats outside the known distribution of Chinook Salmon at scales useful for managers and the research community.

Chinook Salmon (Oncorhynchus tshawytscha) are an important commercial, subsistence, and recreational fishery resource in Alaska, and recent population declines have resulted in closures of some Chinook Salmon fisheries. Research into environmental factors involved in the decline of salmon stocks has exposed information gaps regarding fine-scale freshwater habitat quality known to influence Chinook Salmon productivity. We developed spatially-explicit intrinsic habitat potential models for Chinook Salmon freshwater spawning and rearing life-stages based on geomorphic stream network attributes (e.g., gradient, mean annual flow, valley bottom width). Model predictions were applied to individual stream reaches and summarized across synthetic stream networks derived from high-resolution (5-meter) digital elevation models covering the Yukon River drainage west of the US-Canada border and the entire Kuskokwim River drainage (total stream length ~667,000 km across 1.3 million km2 area). Vector spatial datasets include unique reach contributing area (uRCA) and unique reach contributing area valley bottom (uRCA VB) polygons, and confluence to confluence streamline edges derived from the NetMap synthetic streamlines product. Tabular data includes a collection of stream attributes summarized by uRCA or uRCA VB polygons, and habitat model results derived from these stream attributes. See metadata records for individual data elements for a description of input sources, software environments, data quality, processing steps, and attribute information. Approximately 87,500 and 39,500 stream km were predicted to represent moderate to high (index scores 0.6-1.0) Chinook Salmon rearing and spawning habitat suitability, respectively. Our high-resolution, spatially explicit dataset provides many options for summarizing and visualizing habitat suitability across areal units (e.g., river basins, land management boundaries) and assessing the potential for high suitability habitats outside the known distribution of Chinook Salmon at scales useful for managers and the research community.