Changes in submerged plants at the South end of Cayuga Lake following Tropical Storm Agnes

摘要

Tropical Storm Agnes produced increased suspended sediments and decreased water transparency at the southern end of Cayuga Lake for a sustained period during the early summer of 1972. The 1972 community of submerged vascular plants was severely affected. Standing crops were drastically reduced and the species composition of the plant community changed compared to 1970. In 1973, standing crop values had increased to 87 of those of 1970. However, shifts in spatial distribution had occurred and the community had further changed to one highly dominated byMyriophyllumsp. with the virtual exclussion of some previously abundant forms, especiallyHeteranthera dubia.