Bacteria of the Pasteuriaceae family are endoparasitic within nematodes or cladoceran hosts. Daphnia longispina is a planktonic crustacean of the family Daphniidae, a cladoceran freshwater water flea. "Leptodora kindtii" is "probably the only cladoceran ever described in a newspaper". It is an obligate pathogen of cladoceran crustaceans from the genus "Daphnia". The region's salt water is home to the cladoceran crustacean "Moina belli". Two cladoceran, two ostracod and one testate amoeba species were originally discovered in Licancabur Lake. A rare cladoceran, "Drepanothrix dentate" and a copepod, "Diaptomus vierzejskii" occur in good numbers. Since the 1970s, the cladoceran populations have somewhat recovered, but not to former levels.