RE: natural spawners
2012/03/19 19:38:22
(permalink)
DB-
Are you referring to the cohos that were reported, here, to be late spawning? Cohos spawn later than kings in their native natural ecosystems. Also spawning season modification is confirmed in some GL tribs in scientific studies, for Rainbows, so you've probably been observing modification, and I've seen it too, but not huge numbers of fish, in SR bows that are out of the normal spawning season range, if it was early spawning 'bows. Mid winter is late for cohos, early for Bows in their native systems, but most of these fish are supposed to be adjacent and connected to the Pacific Ocean, so they are adapting to a foreign ecology even after this many years, and a lot of changes occur under those conditions. And reproduction time also gets distributedg along a normal curve,so if something catastrophic happens early or late, or inthe middle, the species is not obliterated.
L13