At around the same time, South Africa introducedmeshing to some of its most popular swimmingbeaches.When meshing began, approximatelyfifteen hundred sharks were caught in the firstyear.However, this declined in the years thatfollowed, and since that time, the average annualcatch has been only about a hundred and fifty ayear.The majority of sharks are caught during thewarmest months, from November to February, whensharks are most active and when both the air andthe ocean are at their maximumtemperature.Despite quite large catches, somepeople believe that shark meshing is not the best way to catch sharks.It's not that they thinksharks are afraid of nets, or because they cat holes in them, because neither of these istrue.But meshing does appear to be less effective than some other methods, especially whenthere are big seas with high rolling waves and strong currents and anything that lets the sandmove - the sand that’s holding the nets down.When this moves the nets will also become lesseffective.