White water lily on Griffith Lake. The water lily is a perennial water
plant that will grow in thick mats. Its leaves are 6-12" in diameter and
float on the surface. The fragrant blossoms open in the morning and close
in the late afternoon. Deer, beaver, muskrat, nutria, and others eat the leaves
and rhizomes, and ducks eat the seeds.
Japanese angelica tree.
Slender blueflag iris.
Another slender blueflag iris.
Delaware is peppered with ponds and lakes that draw fishermen from states away. Dave and I got into a short discussion about how one body of water, pond or lake, is distinguished from the other. I’ve always assumed that a pond would be smaller than a lake, but it appears many ponds are larger than lakes. I went digging for the answer and found that size has nothing to do with the distinction, but depth does. If the body of water is shallow enough that light can penetrate to the depths or bottom of the water, it is therefore defined as photic. The importance of being photic is that light will support the growth of roots and plants from the surface all the way to the bottom. This means that in theory, plants could cover much or all of the surface of the body of water. Being photic makes it a pond. If, however, the water is deep enough that light cannot penetrate to the bottom over most of the water‘s area, it is aphotic, and thus a lake.