They were transported in bags with oxygen. They were in the bags for 6 hours but looked to be in good shape when I got them to the pond. The outdoor temps that day were in the upper 50s, my pond water I Would guess was probably mid 40s. I could feel a pretty big difference in temp between the bags and the pond water. The perch were spitting up a lot of food in the bags which I assume is a sign of stress. The perch that I do see swimming around take off when spooked, their behavior just seems different than what I'd expect, but it has been a few days so I'm hoping they'll be ok.