What type of fish can you catch on fly?
Fish feed using either sight, touch, smell, vibration or a combination of these. If they use sight then we can catch them on the fly. Almost all fish hunt using sight.
There exists the odd deep ocean-dwelling fish that can't see.
I don't know what these fish eat, but it is conceivable that they hunt through vibration,
in which case we could catch them too. If they hunt through smell; we're stuffed.
Of course we could dip our fly in blood, but this isn't fly fishing.
Karen: Why is it not fly fishing if you use blood or a fish gut smell? (I'd like to take this opportunity to state that Karen, as well as growing up in Australia, also has Viking ancestry)
Paul: This is where I have drawn the line; it's more natural. (Karen is a vegetarian, who only eats organic, and as such will fully embrace this point)
Although (nearly) every fish can be caught on fly,
the most common are the trouts, the salmons and the chars - the 'game' fish.
Grayling are also widely sought after with the fly.
Next in popularity (probably) is saltwater fly.
Since we can tie flies to imitate small fish, crabs and shrimps we can catch fish in the sea.
From the UK shores you can catch bass, mackerel, pollack and sea-trout amongst others.
This is rapidly increasing in popularity.
In the US of A saltwater fly is huge.
Bonefish for example, can be stalked off the flats in Florida and once hooked fight like hell.
I spend much of my time living in Australia trying to catch trevally,
flathead or any damn thing that will take my fly. Sometimes they do.
Freshwater fly fishing for non-salmonoids (coarse fish) is also gaining in acceptance
in the UK. In the US they have been fly fishing for freshwater bass for a long time now.
On the Continent fly fishing for pike is extremely popular and this is taking off in the
UK as well now.
As well as pike, you can catch chub (they have been doing this for a long time),
roach, perch, carp, barbel, in fact any damn thing you want.
Being consistent is another matter of course. But this is fly fishing .