Since my primary goal for major predator pond fish are HSB, I have not focused on other species, which deserve consideration.
Angling mortality is a given in hot weather months regardless of the species.
I was reminded of this yesterday by Bill Cody’s post regarding fish handling of BG:
http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=8;t=000148 I recall ML’s 10#+ LMB that died after release.
He posted a photo of the dead bass, with a 5 wt fly rod.
I assume the LMB was victim of angling mortality.
For some reason the post was deleted but the photo remains on his website:
http://www.meadowlarkponds.com/LMB.htm Fishing for striped bass on Lake Texoma in the summer months taught me painful lessons about angling mortality. When water temps were above 83F and air at ~100 degrees it’s time to stay off ponds or lakes…
HSB angling mortality has been discussed extensively on:
http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=7;t=000341 There have been studies of LMB tournament angling mortality results published in various publications:
http://www.in-fisherman.com/magazine/exclusives/if2806_Science/ 
Despite air temperatures over 100 degrees, delayed mortality during tests when oxygen was added to livewells averaged only 7 percent, compared to 32 percent with intermittent aeration. Survival rages are much higher during tournaments held in cool weather.
Delayed Mortality of Tournament Caught Largemouth Bass
GENE GILLILAND (Oklahoma Fishery Research Laboratory, 500 E. Constellation, Norman, Oklahoma 73072)
http://www.oxyedge-chum.com/tournament_mortality_bass,_crappie_&_walleye.htm It is my belief confirmed by the past years HSB experience, that angling mortality can be minimized by careful handling of summer time fish, using “lip gripper” boga grips, and by the usage of simple DIY O2 systems.
