Kōrero: Freshwater fish

Redfin bullies climbing

Many native fish species are able to climb. Watch redfin bullies climbing the wet margin of an inclined drain. In research experiments, these fish could swim up ramps with 15-degree slopes, and climb slopes of 30 and 45 degrees. They used a breast-stroke movement with their large pectoral fins, which gripped the surface.

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NIWA – National Institute of Water and Atmospheric Research

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Me pēnei te tohu i te whārangi:

Bob McDowall, 'Freshwater fish - Evolution and characteristics', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/video/11106/redfin-bullies-climbing (accessed 23 October 2019)

Story by Bob McDowall, published 24 Sep 2007