Stream Attributes and Habitat Intrinsic Potential Model Results to examine Freshwater Habitat Potential for Chinook Salmon in the Yukon and Kuskokwim River Basins, Alaska ...
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...
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| Format: | Dataset |
| Language: | unknown |
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U.S. Geological Survey
2024
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| Online Access: | https://dx.doi.org/10.5066/p95av4jo https://www.sciencebase.gov/catalog/item/64df8deed34e5f6cd553baec |
| Summary: | 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 ... |
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