Dataset Detail
Dataset: Actinospore Release Under Two Different Flow Rates
| Project: Assessment of the risk of Myxobolus cerebralis Introduction as a Result of Straying Adult Steelhead and Spring Chinook Salmon in the Columbia River Basin
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| Dataset Abstract: Myxospores were introduced to artificial stream channels with different flow regimes (slow and fast). Outflow from these channels was filtered for actinospores. Measurements are calculated as both number of actinospores detected per minute and per litre. Raw data are in lab notebooks. | |
| Significance of Results: This is the first experiment to investigate the effect of flow rate alone on the M. cerebralis life cycle. It showed a dramatic difference between the number of total actinospores detected in the outflow between the test groups. | |
| Relevance to Managers: The larger study demonstrates that water flow rate (even a 100 fold difference) has a significant effect on the propagation of M. cerebralis and its impact on its fish host. Thus, in a system where water release is managed by dams or draw-off for agriculture or other uses, flow can be used to reduce effects of the parasite. This study suggests that even small increases in flow in critical low-flow habitats can significantly reduce infection in both hosts (fish and worms). | |
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