It depends. I bet you knew that was the answer. Water temps effect different species differently. It also depends on the minimum water temps. At about 60 F BG metabolism starts to noticeably slow and shortly thereafter their eating starts to slow. At some point energy use is channeled to maintenance of body functions and away from growth. Then in late winter/early spring energy use is diverted to gamete development. If there is excess energy then some growth will continue but not at warm water rates.