The Autecology of Eudiaptomus cf drieschi (Poppe & Mrazek 1895 ...

found previously. The early faunistic survey of Bodenheimer (1935) from Lake
Kinneret, listed four cyclopoid species including Cyclops varicans (Sars) which Barrois
had considered as non-resident. Both Gurney and Bodenheimer list species that were not
mentioned by previous surveys: Daphnia lumholtzi and Cyclops leuckarti (Claus) 1857.
These early investigations, however, dealt primarily with samplings from the shallow
littoral (Gitay 1968).
Samples collected from 1948-1950 by Dr. H. Lissner, of the Sea Fisheries Research
Station, were examined and reported on in the work published by Komarovsky (1959).
This paper is the first to give a detailed list of 22 zooplankton species from the open
water, as well as quantitative data on their seasonality. Yashuv and Alhunis in 1961,
published information from a study conducted in shallow water, during May 1956 to
July 1957, where they listed 35 zooplankton species. In 1968, the newly established
Kinneret Limnological Laboratory began a routine, interdisciplinary monitoring
program of the lake. Pelagic zooplankton have been surveyed continuously on a bimonthly
basis, since 1969 to the present, under the supervision of Prof. Moshe Gophen.
This investigator has been responsible for the inventory of the routine zooplankton
samples from 1980 to the present.
1. 2 Long- term Changes in Kinneret Ecosystem:
Physical
The building of a dam at the southern end of the lake in 1932 at Degania, brought
under man-made control the natural rise and fall of the lake level. Operation of the dam
caused an overall decrease of the average water level, however, the dam ceased active
operation in 1948 and is only used to regulate floodwaters of the Southern Jordan River.