Below are downloadable files containing information regarding fish passage issues, particularly in New Zealand waterways. There are also presentations featuring ATS Environmental products designed to alleviate some of these problems. Please note that the pdf versions do not include slide transitions and animations.
Click this link for a great understanding of what fish require for upstream migrations and remediation tools to achieve this.
Obstruction to fish passage
Presentation regarding current issues facing fish migration in New Zealand waterways.
Obstructions to Fish Passage.pdf (732kb)
Obstructions to Fish Passage.pps (1.3Mb)
Current and proposed solutions to fish passage and water qualitly challenges.
Contract Management Models
An explanation of typical and proposed Project Contract Models for fish passage management.
Contract Management Models.pdf (285kb)
Contract Management Models.pps (344kb)
Culvert Baffle Arrays.pdf (432kb)
Large Culvert Baffles.pdf (373kb)
Fish Friendly Flood-Gates.pdf (1.1Mb)