I took a wonderful limnology class at the University of Wisconsin, Madison in college. The study of inland aquatic ecosystems, lakes, reservoirs, ponds, rivers, springs, wetlands and so forth. I loved this course because it is such a generalist course. We talked about the chemistry of water, the physics, the ecology, the geography. The plants and animals, microscopic to bigger than us. And lakes that freeze, the ice floats on top, because it is most dense at 4 degrees C and less so at 0 degrees C. This oxygenates the entire lake as the water turns over until the entire lake is 4 degrees. Tropical lakes do not do this.

The photograph is of the Salish Sea, so not an inland space. The liminal space for me is the surface, the border between water and air. Sometimes swimming, if air and water are both warm, it’s hard to feel the exact liminal space, wet skin in the air and then the water.

For the Ragtag Daily Prompt: liminal.