So without further ado, HERE is the preprint: www.biorxiv.org/content/10.1.... The answer is YES—water masses do structure microbial communities for both prokaryotes and eukaryotes. In fact, they seem to be the single most important factor structuring microbial communities in the pelagic ocean.

I’m very excited to finally share the results of a passion project that has been on my mind for nearly a decade. You can find the pre-print below, but what follows is the saga of how this project came to be: