The long awaited study by Jed Pearson, District 3 fishery biologist, concerning possible regulations to close part of the bass season in Indiana to protect spawners has just been publicly released. This has been a "hot" issue, with anglers opinions falling on all sides of the fence. Agree or not, if you want to know exactly where IDNR stands on the issue and why, you'll want to read this report. This is especially applicable to the northern Indiana guys where much of the closed season talk got started.
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Interesting. Trying to keep an open mind about this, I note he says:
"5. Does removing male or female bass
reduce the number of successful bass
nests?
(A)Theoretically yes, but not at the
population level.
Just as studies have failed to show a
correlation between the number of adult
spawning bass and the number of age-1 bass
present a year later, there is a (B) general
consensus among states that the number of
bass nests and the number of successful
nests have little bearing on the number of
age-1 bass. What is fundamentally important
is (C) the overall number of bass taken by
anglers from the population throughout the
year and whether enough bass are still
present above a minimum threshold to
ensure adequate reproduction.
As explained in Question #4, Indiana
natural lakes typically have more than
enough adult, sexually-mature bass to
produce sufficient numbers of young and
these adult fish have ample opportunities to
spawn before they reach legal size. Habitat
characteristics and (D) weather are more
important in determining spawning success
than the number of nests.
(E) Although taking female has nothing to
do with nest success, removing a male bass
that is actively guarding the nest or a school
of fry usually results in nest failure. Eggs
and fry are vulnerable to predation. (F) But after
a point, or at high bass densities, male bass
cannibalize their own young.'"
This is just total nonsense; hoping we get lost in the jargon, and not to see through what is actually being said. There's at least 5 subtle double reverses in this statement - (A) (B) (C) (D) (E) . If a football play ever did this on the field you'd know immediately that the offense was in trouble.
Fisheries folks deal in the hear and now based solely on the past. With more anglers coming up and more and more high level info on how to catch fish being available, there never seems to be an attempt to point out what will likely happen in the future. Projections are a simple matter - so why not go there ? This kind of thing is very much like not being able to see beneath the water’s surface, so everything must be OK and not to worry. There’s the old story about the statistics/rates of insurance companies and how certain insurance company employees look at how those numbers were arrived at. The clerk says: “Whatever you guys come up with must be true, or you wouldn’t come up with it.” The underwriter says: Let’s turn the page over and hold it up to the light in order to see if there’s anything wrong here. The actuaries when approaching executive management, say: What would you like those numbers to be? Knowing what side your bread is buttered on always comes into play.
Posted by: Rich Ziert | March 14, 2009 at 09:01 AM
Interesting study/observations. I'll have to post that on my message board. Thanks for sharing it.
Posted by: Rick Vogelbacher | March 17, 2009 at 03:57 PM