This may be due in part to the shallow depth of Lake Owen, which allows sunlight to penetrate to the bottom and in turn, allows photosynthesis by rooted plants.
(Lake Owen; allows; sunlight to penetrate to the bottom and in turn) Context(Lake Owen allows,List([48, 71))):(sunlight; to penetrate; to the bottom and in turn)
Lake Owen allows,List([48, 71))
Lake Owen sunlight
allows to penetrate
sunlight to penetrate to the bottom and in turn
to the bottom and in turn