Original paper

Exchanges of copepod fauna between surface- and ground-water in the Rocky Glades of Everglades National Park (Florida, U.S.A.)

Bruno, M. Cristina Perry


We studied species composition and individual abundance of copepods in the surficial aquifer in short-hydroperiod habitats of Everglades National Park by collecting copepods from different depths at selected wells for two consecutive years. Subsurface copepod communities were dominated by surface copepods that colonized ground-water mainly at the beginning and at the end of the wet season, when groundwater levels dropped about 60 cm below ground level. Copepods entered groundwater, but decreases in community similarity with increasing distance between wells suggest that they did not disperse far from the input location. The five most abundant species were stygoxenes: Osphranticum labronectum, Arctodiaptomus floridanus, Orthocyclops modestus, Thermocyclops parvus, and Macrocyclops albidus. Two stygophiles were collected: Diacyclops nearcticus was abundant, whereas Elaphoidella marjoryae was rare. Elaphoidella fluviusherbae, and perhaps a Parastenocaris sp., were the only stygobites collected.


aquifersubsurface communitystygobitesground-water fauna.