News & Updates
CFD Modelling
Hi everyone Many of you will be aware that observing, measuring and understanding the complex flows in which fish move is very challenging. Below are a few interesting images that have been created by the Fish Passage Action Team using CFD modelling. There are many...
Eel climbing 3 surfaces
Tim Olley has shared this video showing the same juvenile eel climbing up three different surfaces, including mussel-rope. https://www.youtube.com/watch?v=k_HCCrd32jA https://www.youtube.com/watch?v=k_HCCrd32jA
Access to Spawning Sites
Hi everyoneFish need to have access to spawning sites.Here is a link to a really nice video showing stage-one of a manmade spawning and nurturing site for inanga (galaxiid maculatus) though many other species with make this place home.The pools will soon be planted...
Culvert Webinar
Upcoming Relive LIVE:Learn How to Maintain Hydraulic Capacity of Culverts & Protect the Fish Thursday, April 29th @8:30am PT / 11:30am ET (USA).Note this time may not suit so we will post a link to a recording once done. Learn how installing flexible culvert...
Eels Fail At Weir
Watch Tim's latest video showing young eels trying to climb a concrete weir only to be swept off by pulses of water, making an already difficult climb impossible. Sometimes the variations in flowing water can be beneficial or disadvantageous to migrating fish, and in...
Jordi’s Before And After
Hi everyone Below is a brief report following remediation of two culverts at Raumanga, Northland, NZ. An 'after remediation' fish survey was undertaken on the Raumanga fish passage remediation project in mid-December 2020, and to keep in line with the 2019 survey, we...