No, I'm not referring to the southern latitudes, but rather to creatures of the deep. Or the not quite so deep.
Creatures of land and air often grace our pages, but not so many of an aqueous environment. Probably because photographing them in their own medium requires special equipment and approaches, and brings a set of unique challenges. Here in the Pacific Northwest, we have an abundance of cold water fishes of various persuasions. These two were subsequently tagged and released as part of biological studies.
Rainbow trout (Oncorhynchus mykiss) in spawning colors
Brook trout (Salvelinus fontinalis), which is actually a char