Dataset Detail
Dataset: Prevalence of Infection in Tubifex tubifex Under 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
| |
| Dataset Abstract: Myxospores were introduced to artificial stream channels with different flow regimes (slow and fast) and containing Tubifex tubifex. Worms were removed 201 days post-exposure and a quantitative PCR (QPCR) assay was performed for Myxobolus cerebralis. Data show the results of the QPCR, including raw Ct values for those worms that tested positive and a summary of adjusted raw data. Ct values indicate severity of infection and are inversely proportional to the amount of parasite DNA found in each worm. | |
| Significance of Results: The percentage of Tubifex tubifex that tested positive by QPCR for Myxobolus cerebralis was affected by flow rate. | |
| 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). | |
| View the metadata | log in to download data. |
»
