A close second would be, “What (or how many) fly patterns do I need to have to be successful most of the time? Those are both valid queries, and ones which reflect the quintessence of fly-fishing. On ...
We studied antipredatory responses of lotic mayfly (Baetis) nymphs in a factorial experiment with four levels of fish presence: (1) a freely foraging fish (the European minnow, Phoxinus phoxinus), (2) ...