I agree with Mato Kuwapi!
We have had this conversation many time over the past 13 years on FAOL's "Bulletin Board", also in the "Angler's Hut". Lot of messages of fishing with 3 weight fly rods for 24-inch trout, only to release it after it is brought to the net. Since then the anglers who need to test their fly rods to the breaking point to experience their ultimate aim, have progressed to repeating their exploits on 2-weight, 1-weight, and even 0-weight fly rods. Similar to when Limbo Dancing was all the rage many years ago, the expression was "How low can you go, as the bar held out for the dancers to limbo under was lowered after each dancer attempted to limbo under the bar.
Lets not do the limbo dance when it deals with catching and releasing fish. If the rod and line are too light to handle the fish quickly, any released fish will in a short time after release, Die! So what I am saying, to use a high enough weigh fly rod and line, to quickly bring the fish to net,without damaging the fish, for successful, release.
There also the mattern of over-fishing a given water source, by too many anglers, that each might pratice catch and release or catch and keep. Catch and Release (15% mortality rate of fish), Catch and Keep (100% mortality rate). Too many anglers fishing for a finite poplulation of fish, will cause the fish population to crash, causing the fish population not to be able to replenish the fish stock to a population capable of subtaning its poplulation in the the water ecosystem.
Fishery Experts know that when a fish is hooked, it is fighting for its life. Toxins buildup in the fishes muscles, that can causes the fish death after it is released. State Fishery authorities have done countless studies, that show, that if catch and release is done there is a 15% mortality rate of fish dying. I do not think that these State Fishery authorities on the subject, ever included anglers that catch and release fish on fishing rods and lines that are too light for quickly bring in the fish, and just as quickly releasing the fish.
I only can speak for myself. I catch and release most of the time when fly fishing, I do not handle the fish too much (it can remove the slime from the fishes body that protects it from infections), I don't remove the fish from the water ( net the fish a fishing net that will not damage the fishes protective body coating. I insure that the fish has regained its strength before releasing it.
If the fish is hooked badly and I deem that it will not survive after being release, I will kill the fish, but cutting out its gills and draining the fishes blood. This is the best way to dispatch the fish, lot better than smashing it with a blunt instrument on the head.
Fishing is and always be a killing sport, there is no way to remove the demise of some of the fish you catch, even if you try to practice "Catch & Release"! ~Parnelli
Don't it always seem to go
That you don't know what you got till it's gone
They paved paradise and put up a parkin' lot