Boat Electrode Changes: Effects on Resistance

Overall resistance of an electrofishing system is determined by the combination of ambient water conductivity and the electrodes.  The electrode shape, number, length or size, diameter of stock material, configuration and spacing affect both their overall resistance and the profile of the electrical field in the water around the electrodes.  Rarely are there data available for assessing the effects of electrode changes on resistance or on fish catch. This blog presents some empirical results from field measurements of electrode resistance before and after some electrode changes.

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Standardising by power II

You can use this worksheet to apply your data collected in Standardising By Power I.Continue Reading..

Electrode resistance procedures

This document provides guidance for making electrode measurements on various gear types, using an external power source and an internal power source.Continue Reading..

Boat electrofishing safety

Dr Alan Temple introduces the key concepts and methods of assessing the safety of boat electrofishing units.

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