8-63. If a gill net is not available, you can make one using parachute suspension line or similar material (Figure 8-20). Remove the core lines from the suspension line and tie the casing between two trees. Attach several core lines to the casing by doubling them over and tying them with prusik knots or girth hitches. These lines should be six times the desired depth of the net (for example, a 6-foot [180-centimeter] piece of string girth-hitched over the casing will give you two 3-foot [90-centimeter] pieces, which after completing the net, will provide a 1-foot [30-centimeter] deep net). The length of the desired net and the size of the mesh determine the number of core lines used and the space between them. The recommended size of the spaces in the net mesh is about 1 inch (2.5 centimeters) square. Starting at one end of the casing, tie the second and the third core lines together using an overhand knot. Then tie the fourth and fifth, sixth and seventh, and so on, until you reach the last core line. You should now have all core lines tied in pairs with a single core line hanging at each end. Start the second row with the first core line, tie it to the second, the third to the fourth, and so on.
Figure 8-20. Making a Gill Net
8-64. To keep the rows even and to regulate the size of the mesh, tie a guideline to the trees. Position the guideline on the opposite side of the net you are working on. Move the guideline down after completing each row. The lines will always hang in pairs and you always tie a cord from one pair to a cord from an adjoining pair. Continue tying rows until the net is the desired width. Thread a suspension line casing along the bottom of the net to strengthen it. Use the gill net as shown in Figure 8-21. Angling the gill net will help to reduce the amount of debris that may accumulate in the net. Be sure to check it frequently.
Figure 8-21. Setting a Gill Net in the Stream
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