Fish Passage Action Team Blog
Stories, updates, and insights from the field — tracking progress, sharing wins, and supporting better fish passage around the world.
Magical Climbing Fish
Hi all
Below is a short video that Tim has put together showing juvenile whitebait (galaxiid) climbing up into a perched culvert.
We are often able to imitate the conditions that allow fish to do this by fitting rubber ramps and/or mussel-rope, however little is known about the limitations with respect to gradients, flow, height, substrate etc.
Fish Passage
Chuck Lobdell and the team at Johnson Creek Watershed OR have recently installed some flexible baffles in the culvert under Highway 26.
The aim is to improve fish passage in all flow particularly for spawning salmon.
The baffles are offset to provide a low-flow swim channel and also extend up the wall of the culvert to assist during higher flows.
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“99% of barriers in Rangitaiki fixed with simple solutions under $200”
– RNZ on ATS Environmental initiative
“Installed flexible baffles in culvert—juvenile galaxiid seen migrating days later.”
– Nelson City Council Trial Update
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