It is widely observed that species performance traits (growth, fecundity, population size) follow a unimodal response to temperature (e.g. Huey and Stevenson 1979). These curves may be useful for predicting the response of species to global change. I have been searching for resources, compiling papers and datasets to try to estimate the thermal response, if any, of widespread submerged macrophyte species within my study area (Iceland). Given that there are many factors that regulate the growth/abundance of macrophytes, I am trying to find as much data as possible to try to elucidate these patterns. So I am reaching out to see if any here have suggestions of possible resources.