I have just recently discovered the ForUmosa forums, but I have lived here for a good few years. I used to go fly fishing at home in Ireland (not with any great degree of competence mind you) when I was much younger. I see you haven’t have yet had any replies on the post as yet, and wondered if you have had any luck elsewhere. Only recently I have really thought about getting back in to fly fishing but unfortunately have though it a bit of a lost cause here in Taiwan. I have watched the fishermen in some of the local rivers and they seem to go for mostly bottom feeding species.
I have seen fish rising on some of the local rivers though, and have often wondered are there any species in there feeding on flies, and if so what type. I intend to go and sit by the rivers and watch closely and see what is happening (but time constraints meant that I haven’t had the chance yet). This is partly because I have no gear here (or at home anymore) so I want to see what the situation is before I invest in any new gear.
What I do know is that of recent years there have been a number of trout farms springing up on Yangminshan. If some of these are close to rivers then there are no doubt some escapees getting into the rivers after typhoons etc., whether the rivers up there can sustain them or not I suppose is debatable.
Anyway sorry I cannot be of any help on this, but it is one of those things I am looking into long term, so if you do get any info let me know.
I have put the idea to some people of actually opening up a nice trout fishery for fly fishing here, but it doesn’t seem to be a goer (as yet anyway). Some of the people I know with the wherewithal to do so are more interested in opening up yet another shopping mall (after all we really don’t have enough Esprit, G2000, Mango stores do we?).
I had searched on the net (as no doubt have you so sorry if you already read this one) for info and got the following tackletour.com/reviewfishingtw.shtm . Not very specific unfortunately.
All the best in your quest.