The fish can often be seen splashing on the surface as they chase small bait fish like whitebait or anchovies, but they often go down and disappear. One productive technique is to use trout trolling tackle. The kahawai may be deep in the water column and a wire or lead-core line will sink down 10 or 15m. Trout lures like a clown coloured cobra or a silver or green toby are excellent for kahawai. If there are no birds around, anglers can look for schools of bait fish in mid-water on the screen of the fish finder and troll around in the area.
Jigs and soft baits are also effective on kahawai, and drifting and working these lures up through the water column from the bottom to the surface can do the trick, and is deadly when drifting through a work-up. Sometimes kahawai ignore the lures. The problem is the size of the forage fish they are feeding on. The solution is to match the size of the bait and use a small lure, and something like a silver smelt fly will be snapped up.
Some people like to bleed the fish when first caught by slashing the throat. The white flesh makes excellent sashimi or marinated raw fish. The gills and guts can also be used as bait for large snapper, so nothing need be wasted.
Fresh waterIn spite of a lack of rain the runs of mature trout in the Lake Taupo spawning tributaries have been impressive, with fish in top condition and running up to 3kg. It is late in the spawning season and the rivers will be holding both fresh-run trout in top condition, and poor-conditioned fish. On the Tongariro River the stable, low conditions result in an explosion of invertebrate insect life, and if there are no major floods to flush out the river the summer should see some great dry fly action as the predominantly caddis nymphs hatch.
More fishing action can be found on Rheem Outdoors with Geoff, 5pm tomorrow, TV3, and at GTTackle.co.nz.