Thanks for the info, Eric. That is an interesting study, seeing as how we have BG, RES, and CNBG in that pond. I wonder what the average age of CNBG in those same study lakes would be. I was surprised by the "few bluegills older than age 2 in a Texas impoundment..."--Wow! Without regard to population dynamics, angling, or predation, I'm guessing that I can expect the RES to live longest, followed by CNBG and BG.
I haven't been present for all stockings (will check with the 'ol man), but to my knowledge all BG were 3-5" with possibly a few 6-7" at the time of their respective stockings. The RES were only 3-4" and have been stocked twice, both times with BG. The CNBG were stocked first at 1-3" along with FH in March of 2006 after pond had been drained, dredged, and refilled, and then CNBG were stocked again between two BG RES/stockings (all rotated in spring/fall). I hope that makes sense.
I "caught" a few RES yoy during primrose raking, so I know they spawned. Given the abundance of BG yoy, it seems like the original BG stockers and the ones stocked with the pictured BG spawned. Interestingly, I have yet to sample CNBG from that pond, but I'd bet they're there. I'd love to sample the BG, RES, and CNBG in one outing someday, if the RES cooperate.
Sorry for the long-winded post...I never imagined our little BG pond would be such a blast!