The bottom waters of such lakes are commonly deficient in oxygen, ranging from hypoxic to anoxic; thus, such lakes commonly lack those fish species, like trout, which require cold, well-oxygenated waters.
The bottom waters of such lakes are commonly deficient in oxygen, ranging from hypoxic to anoxic. Such lakes commonly lack those fish species. This is like trout. This is thus. Trout require cold-oxygenated waters. This is well.