How to rig / tie the float line on gill / tangle nets sea fishing. Knot distance beach boat survival

Well a little theory on how to calculate and work out the knot distance and hanging ratios on rigging gill or tangle nets for sea fishing. Its pretty simple, but the hanging ratios are the difference between catching or not catching fish. This has been used for hundreds of years since net fishing first started, when it was more of a survival skill to feed the family, rather than catching fish to sell. Unfortunately this knowledge is dying out, and the skill of rigging nets with it. I understand that a lot of recreational fishermen think nets catch and kill everything in their path, but if you have watched my netting videos, you will see how the mesh sizes are very selective in the species they catch.