I'm afraid you can't ID the different types of ghost shrimp by that picture above. The 'pet store' shrimp are not PK shrimp and do not survive in cold water conditions. If your BOW temps get into the 40s or gets skins of ice in the winter and the ghost shrimp have survived that then they probably ARE cold tolerant PK shrimp. Others have tested by taking a handful of shrimp and putting them in your pond water in the fridge overnight and seeing how they survive it.
If a bunch of you can keep a teeming population going there are many on the forum who suddenly would want to exchange email addresses with you!
I'm not sure if ghost shrimp can stir up a pond or not. It seems like their weight and activity would not make them as likely to do so compared to fish or crayfish.
