Hi all,
Tasman District Council in NZ has recently undertaken an unprecedented 23 day fish passage trial assessing fish movement through a twin barrel culvert.
The trial involved capturing and counting fish daily as they naturally migrated upstream through the culvert pipes. One of the pipes was remediated to improve fish passage, while the other pipe was left unremediated.
The remediated culvert was fitted with fish baffles and a ramp.
The results showed a great improvement in fish passage following remediation.
Check out the full report HERE.