ABSTRACT
Investigations of Antarctic zooplankton date back to the
Challanger expeditions of 1982-1876. However, it was not
until the beginning of the twenty-first century that intensive
studies commenced with the program of research undertaken
by the research vessel Discovery in 1926-1929, followed by
the Scoresby in 1950-1951. The extensive collections of
these expeditions have contributed valuable information on
distributional patterns as well as the life cycles of many of
the major zooplankters (e.g., Ommaney 1936; Bargman
1945; Marr 1962; Andrews 1966; Foxton 1966; Mackintosh
1972). Mackintosh (1934) distinguished different zones and
defined boundaries of distribution based on the association of
zooplankton species with certain water masses and identified
species, and widespread species.
