| Other threats include pollution, channelization and dam construction, which have blocked access to suitable spawning sites, causing fragmentation of populations. |
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| The loss and degradation of spawning habitat due to water management practices, particularly the regulation of water levels and channelization, have contributed to declines in Bigmouth Buffalo in the Qu'Appelle River basin. |
| River regulation through the creation of dams and reservoirs, as well as channelization, can degrade and destroy dipper habitat. |
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| Groundwater discharge may be impacted by activities such as the channelization of water courses that restrict the motion of groundwater across the groundwater and surface water interface. |