by admin | Oct 21, 2021 | Climbing Fish & Eels
Hi everyone Below is a YouTube link to a video sent to us from Greg Wallis in Australia.It shows common galaxiid/inanga (Galaxias maculatus) trying to navigate a vertical wall at a large box culvert.Despite these fish showing amazing burst-swimming abilities to scale...
by admin | Jan 20, 2021 | Climbing Fish & Eels
Hi all Tim has been monitoring busy monitoring structures over the Christmas break and has shared this rare footage of redfin bullies attempting to climb over a large concrete weir (over 11m high!). Note how the eels and and redfin...
by admin | Dec 21, 2020 | Climbing Fish & Eels
Hi everyoneSome of you may have already seen our post on the “Eel Town” Facebook page but it is worth sharing again. eDNA has revealed NZ Longfin eels above this 50M water and has prompted quiet a bit of discussion. Unless transported by humans (unlikely...
by admin | Nov 2, 2020 | Climbing Fish & Eels, Culverts
Firstly it is great that we now have 500+ members of the Fish Passage email forum. In this short video Tim has captured how fish really struggle to swim up through culverts with smooth laminar flow. The adult Inanga (one of the galaxiid whitebait family) attempts to...
by admin | Aug 30, 2020 | Climbing Fish & Eels
This short video shows elvers climbing across both smooth and rough surfaces. The urge to overcome obstacles is powerful and you can see individuals climbing over each other. The more we watch these creatures, the better we understand their capabilities and...
by admin | Jul 20, 2020 | Climbing Fish & Eels
Tim Olley captured this rare footage of a juvenile redfin bully (Gobiomorphus huttoni) climbing up a retro-fitted mussel-rope with backing, into an overhanging culvert. It reminds us that, given half a chance, many fish will navigate challenging obstacles. What is not...
