Data describing hypoxia vulnerability in the salmon watersheds of Southeast Alaska
Dates
Publication Date
2023-12-04
Start Date
2008-07-01
End Date
2021-09-30
Citation
Sergeant, C. J. and Falke, J., 2023, Data describing hypoxia vulnerability in the salmon watersheds of Southeast Alaska: U.S. Geological Survey data release, https://doi.org/10.5066/P9VAKF20.
Summary
This .zip file contains five products that will allow users to recreate the analyses and spatial data figures used in Sergeant et al. 2023, Hypoxia Vulnerability in the Salmon Watersheds of Southeast Alaska: 1) Hypoxia vulnerability calculations (.csv file) at water temperature monitoring sites, 2) Hypoxia vulnerability calculations (.csv file) for stream reaches near hatchery release sites, 3) Habitat characteristics (.csv file) at water temperature monitoring sites, 4) R code (.R file) for recreating Figure 3, modeled contours of the estimated number of pink salmon/m2 to create hypoxia in Southeast Alaska streams across all potential combinations of velocity, depth, and water temperature, 5) Esri map package (.mpk file) that will [...]
Summary
This .zip file contains five products that will allow users to recreate the analyses and spatial data figures used in Sergeant et al. 2023, Hypoxia Vulnerability in the Salmon Watersheds of Southeast Alaska: 1) Hypoxia vulnerability calculations (.csv file) at water temperature monitoring sites, 2) Hypoxia vulnerability calculations (.csv file) for stream reaches near hatchery release sites, 3) Habitat characteristics (.csv file) at water temperature monitoring sites, 4) R code (.R file) for recreating Figure 3, modeled contours of the estimated number of pink salmon/m2 to create hypoxia in Southeast Alaska streams across all potential combinations of velocity, depth, and water temperature, 5) Esri map package (.mpk file) that will allow users to recreate Figures 4 and 6 using ArcGIS and extract basic reach- and watershed-scale data associated with hypoxia vulnerability. The hypoxia vulnerability metric values are color-coded for watershed polygons and stream reach lines that are defined in the legends of Figures 4 and 6 and also within the data layers of the .mpk file. Note that there are four separate data frames in the .mpk file that represent different geographic regions (North, Central, South, and Overview). The .mpk file will open in ArcGIS Pro, but may not open in versions of ArcGIS Desktop earlier than 10.8.2.
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Hypoxia_Vulnerability_rev.xml Original FGDC Metadata
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27.75 KB
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5_Hypoxia_Vulnerability.zip
39.25 MB
application/zip
Related External Resources
Type: Related Primary Publication
Sergeant, C.J., Bellmore, J.R., Bellmore, R.A., Falke, J.A., Mueter, F.J., and Westley, P.A.H., 2023, Hypoxia vulnerability in the salmon watersheds of Southeast Alaska: Science of The Total Environment, v. 896, p. 165247, https://doi.org/10.1016/j.scitotenv.2023.165247.
The data were collected to estimate the vulnerability of stream reaches in Southeast Alaska to low dissolved oxygen events (hypoxia) using combinations of water temperature, spawning salmon density, and habitat characteristics. Many potential uses for these data exist, including those the original authors may have not foreseen. Basic usage includes viewing stream- or watershed-scale hypoxia for flowing waters of interest. The Discussion section of Sergeant et al. 2023 describes in greater detail potential applications of these data to applied questions in the aquatic sciences, including ecology, fisheries, and hydrology.
