Sorry but this promises to be a long post!!!!
The points put forward by you all make a great deal of sense but do not draw one to any firm conclusion. Having re-read your comments and those of Graham Marsden in a perevious thread. I have spent a good few hours on the internet over the last couple of days trying to find qualified structured opinion on the matter and no matter where I look the story is the same a 50/50 split in opinion.
I think that the only piece of research I have read so far is the following. American I know but still a qualified and rational argument.
North American Journal of Fisheries Management 1997;17:873?881
Barbed Hook Restrictions in Catch-and-Release Trout Fisheries: A Social Issue
D. J. SCHILL and R. L. SCARPELLA
Idaho Department of Fish and Game, 1414 East Locust Lane, Nampa, Idaho 83686, USA
Abstract.?We summarized results of past studies that directly compared hooking mortality of resident (nonanadromous) salmonids caught and released with barbed or barbless hooks. Barbed hooks produced lower hooking mortality in two of four comparisons with flies and in three of five comparisons with lures. Only 1 of 11 comparisons resulted in statistically significant differences in hooking mortality. In that instance, barbless baited hooks caused significantly less mortality than barbed hooks, but experimented design concerns limited the utility of this finding. Mean hooking mortality rates from past lure studies were slightly higher for barbed hooks than barbless ones, but the opposite was true for flies. For flies and lures combined, mean hooking mortality was 4.5% for barbed hooks and 4.2% for barbless hooks. Combination of test statistics from individual studies by gear type via meta-analysis yielded nonsignificant results for barbed versus barbless flies, lures, or flies and lures combined. We conclude that the use of barbed or barbless flies or lures plays no role in subsequent mortality of trout caught and released by anglers. Because natural mortality rates for wild trout in streams commonly range from 30% to 65% annually, a 0.3% mean difference in hooking mortality for the two hook types is irrelevant at the population level, even when fish are subjected to repeated capture. Based on existing mortality studies, there is no biological basis for barbed hook restrictions in artificial fly and lure fisheries for resident trout. Restricting barbed hooks appears to be a social issue. Managers proposing new special regulations to the angling public should consider the social costs of implementing barbed hook restrictions that produce no demonstrable biological gain.
I told you this was going to be a long post!!!
Ok lets say that the article is accurate. If we are going to avoid damaging fish then surely we have to look further than the barb to find an answer to the problem.
Some interesting points for discussion are:-
1, Circle hooks - no striking and 95% self hooking and only in the jaw area.
2, hook size - what is the point of using a size 20 hook to catch a fish that can swallow a bait the size of your fist.
3, Striking - possibly the most abused action in fishing and can rip the hell out of the fish.
4, Fine wire hooks - do these cut into the fish's flesh more tham heavier hooks.
5, Disgorging - whoever said that you should not try to disgorge a swallowed hook because if you cut it off the fish will simply shed it. Every fish biology report that I have read recently says that this is piffle and that the hook should be removed if the fish is to survive (back to the barbed or barbless hook argument again.
What should we be really looking at here. barbed or barbless hooks or taking a more generalised and rational look at the tools we use to catch and often damage fish?
Clive