Things happen in the field, particularly when we are using complicated sampling gears (= electrofishing equipment). Malfunctions can occur in the electrodes, branch circuits (conductors running from the control box or power source to the electrodes), the power source, or the control box. Biologists build a lot of their own equipment, wiring boats, electric seines, and the like. From what I’ve seen, most problems appear in our wiring or construction, but generator problems, and sometimes control box issues do occur. Fisheries biologists are a resourceful lot. If given direction, they usually can diagnose the problem at hand and get back to sampling. With this in mind, Midwest Lake Electrofishing Systems, based in Polo, Missouri, has developed a list of items for a basic field tool kit (see below). Although the intent is a tool kit for electrofishing boats, this kit applies to any electrofishing gear type.
Many thanks to the crew at MLES.