March is a transition month on UK rivers. For many anglers it represents the final part of the winter grayling season before attention turns to trout. Exactly how this plays out depends on the river and local rules. Some trout seasons begin during March, while other areas have a break before trout fishing reopens at the end of March or beginning of April. On waters where grayling fishing remains available, March can be excellent.
As spring begins to influence river life, insect activity increases. Large Dark Olives become more important and, during mild spells, the first Grannom caddis may begin to appear on suitable rivers. Grayling still feed mainly beneath the surface, but they become more willing to intercept ascending nymphs and emergers than they were in January or February.
Pheasant Tail Nymphs, Hare's Ear Nymphs, Sawyer's Killer Bugs and tungsten jig nymphs remain dependable. If fish begin feeding higher in the water, CDC emergers, Klinkhammers and the Peaks Fly Fishing Grannom Emerger can be excellent. The Grannom Emerger is especially useful on rivers where trout and grayling intercept pupae before they become adult sedges.
Recommended fly selection:
- Pheasant Tail Nymph
- Hare's Ear Nymph
- Sawyer's Killer Bug
- Pink Shrimp
- Tungsten Jig Nymph
- Large Dark Olive
- CDC Shuttlecock
- Klinkhammer Special
- Peaks Fly Fishing Grannom Emerger
On the river:
March should be fished by conditions, not by the calendar. A cold northerly can make the river feel like winter, while a few mild days can switch everything on. Watch for olives, early Grannom and fish moving higher in the water.