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Supporting Information datasets for article: "Effects of Climate Change on stream temperature and salmonid habitats in the Clackamas River Basin, Oregon."
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| Type: | Resource | |
| Storage: | The size of this resource is 249.9 KB | |
| Created: | Jan 22, 2025 at 9:49 p.m. | |
| Last updated: | Feb 26, 2025 at 9:02 p.m. | |
| Published date: | Feb 26, 2025 at 9:02 p.m. | |
| DOI: | 10.4211/hs.25f3b33406bd4b8c81ef667e8f4c6d96 | |
| Citation: | See how to cite this resource |
| Sharing Status: | Published |
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| Views: | 145 |
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Abstract
This repository contains the Supporting Information Datasets for Krochta, M., Anlauf-Dunn, K., Bugni, D., & Chang, H. (2025, under review): Effects of Climate Change on stream temperature and salmonid habitats in the Clackamas River Basin, Oregon.
Abstract: Rising stream temperatures pose significant challenges to aquatic ecosystems, particularly for coldwater-adapted organisms like salmonids. This study examines the effects of climate change on stream temperatures and salmonid habitats in the Clackamas River Basin, Oregon, USA. Using spatial stream network models and CMIP6 climate projections under SSP2-4.5 and SSP5-8.5 scenarios, we project mid- (2045-2074) and late-century (2075-2100) stream temperature changes. These projections are then integrated with thermal tolerances and intrinsic habitat metrics to assess future habitat suitability for key species, including steelhead, coho, Chinook, and bull trout. Stream temperature trends from 1991–2023 reveal basin-wide warming, with high-elevation tributaries demonstrating more resilience to climate impacts while lower-elevation subwatersheds face greater vulnerability. Future projections indicate a basinwide maximum 7-day average of daily maximum stream temperature increases of 1.42°C to 2.04°C for the midcentury, and 1.84°C to 3.24°C by the end of the 21st century. These increases reduce the most thermally suitable habitats for steelhead, coho, Chinook, and bull trout by an average of 29.1% to 24.2% during the mid-century time period, and 41.9% to 55.1% by the end-of-century time period. By linking climate-driven temperature projections with habitat metrics, we identify priority subwatersheds based on projected thermal suitability where conservation efforts can maximize impact.
Subject Keywords
Coverage
Spatial
Temporal
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Content
readme.txt
This repository contains the Supporting Information Datasets for Krochta, M., Anlauf-Dunn, K., Bugni, D., & Chang, H. (in review): Effects of Climate Change on stream temperature and salmonid habitats in the Clackamas River Basin, Oregon.
Clack_Max7DADM_91-23.xlsx
- This table is a compilation of data collected by multiple agencies ("Collector") and summarized by Year_ using the Maximum of the 7-day average of maximum stream temperature (Max7DADM).
- The locations of each site are included in the table.
Clack_stream_data.xlsx
- This table includes calculated watershed attributes and model outputs of stream temperature and salmonid habitat metrics as detailed in Krochta et al. (in review).
- Each row of this table can be joined with the NHDv2 stream shapefile using either COMID or GRIDCODE, each of which are in common with stream reaches within the NHD dataset.
- For more information on the individual fields included in this table, please see the Clack_stream_metadata.xlsx file included in this repository.
Credits
Funding Agencies
This resource was created using funding from the following sources:
| Agency Name | Award Title | Award Number |
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| Oregon Department of Fish and Wildlife | Oregon Conservation and Recreation Fund | OCRF 2022-2-09 |
Contributors
People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.
| Name | Organization | Address | Phone | Author Identifiers |
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| Heejun Chang | Portland State University | |||
| Kara Anlauf-Dunn | Oregon Department of Fish and Wildlife | |||
| David Bugni | Clackamas River Basin Council |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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