Rainbows in New Zealand quickly learned to spawn in Oct-Nov when they used
to spawn in Apr-May
Don't know where this info came from, most rainbows in the North Island at
least, spawn May through August, with peak numbers in June and July
(mid-winter). It is true that spawning fish will come upriver in April in
some rivers, and fish will continue to spawn into Novenmber, but in far
fewer numbers than during the peak runs.
--
Tony Bishop
www.bishfish.co.nz
New Zealand