Smalma ... it's funny that simple common sense sometimes goes out the window. It's well known that certain traits are passed along to offspring ... whether it be the big rack of a mule deer buck, the height of a human being, or the traits (often extra freshwater yrs. or saltwater yrs. that fish in certain watersheds show ... Skeena steelhead and Kenai kings are two prime examples). We've often questioned the impact of netting (mesh size often dicates the bigger fish being caught) on the coastal streams as well as the impact of sporties only keeping the bigger ones.
AkKings ... I understand what you're trying to say. Although you state that I "look down" on others who kill all big fish ... not quite the case, and perhaps a bit hypocritical, but the point here is keeping in mind that it is a good thing for the fishery ... not to openly bash people who keep big fish. Any time we put a line in the water, we're going to have a negative impact to some degree.
However, this is apples and oranges in comparison to this situation. You're suggesting the biggest halibut go ... a good idea. My personal biggest halibut was released. We routinely let some big fish go. My personal opinion of the perfect rack ... about 40 pounds all the way across.
But yes, we do kill a number of them as well too, we do leave that up to the client. As for pictures, as a former guide, I'm sure that the outfit you worked for more than likely had big fish in their pictures (especially before it became fashionable in SE to let them go ... that has not happened here, yet) ... potential clients aren't even going to call you in the first place if all your competition shows big fish pix and you show a rack of chickens. Pretty simple.
What makes these situations different. Salmon and steelhead are generally on pretty strict lifespans ... as were the fish in this study. The big halibut you refer to are important to the stock as they are breeders, but it is generally more of a fact that they are older fish rather than showing a trait to be larger. There's a big difference there.
The Derby?? It's not all about the biggest fish killed ... although I'd be lying if I said I'd definitely release a derby-winning fish ...$30,000+ in cash would make a nice down for the home we'd like to build.
There's lots more to it:
How 'bout a chance for a $10,000 prize for
released large fish. Or the 104 tagged fish that also give you a chance at
$10,000. The fact that derby makes up roughly 20% of the Homer Chamber of Commerce's budget isn't bad either.