Originally Posted by DoubleACRanch
I think that trade is definitely something I would rather do. We are already planning gravel bed spawn sites for the BG and some pallet structure which I believed I read were good for FHM.

If I shoot for a 30 to 1 ratio at introduction, I would need to know a general spawning success rate for BG to estimate how many I have in the pond after one year?

Sounds like you are on the right track! While you could do an electro-survey to thoroughly check BG numbers, it's a pretty safe bet that they are doing well if you start seeing lots of young of the year in shallow weedy areas.

7ac 2015 CNBG RES FHM 2016 TP FLMB 2017 NLMB GSH L 2018 TP & 70 HSB PK 2019 TP RBT 2020 TFS TP 25 HSB 250 F1,L,RBT -206 2021 TFS TP GSH L,-312 2022 GSH TP CR TFS RBT -234, 2023 BG TP TFS NLMB, -160