A few thoughts:

The strong inflow of (low 60's?) ground water from the springs may provide enough of a warm water haven for tilapia to overwinter successfully, at least in some years.

Tilapia appetites drop off with lower water temps, so even though they are still alive, they are not eating nearly as much as they would in the summertime. Conversely, FA growth on the bottom is often at it's most aggressive in cool water.

I think almost all of the reports from tilapia users indicate that the seasonal introduction of this fish is beneficial to their BG populations. Only in waters warm enough for tilapia to overwinter each and every year do they have a negative impact on BG, such as in Mexican lakes where the tilapia are NOT aggressively pursued by local anglers/netters, holding their population down.

Yur (CN)BG, at least the small sizes, are probably suffering much more from the stunted bass. The BG/RES mixed stockers you added were unfortunately small enough to have been very susceptible to numerous 10"-13" LMB. Have you made an effort to reduce the bass numbers?


"Live like you'll die tomorrow, but manage your grass like you'll live forever."
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