Abundance data of 4 species of Calanoid copepods in plankton samples obtained around South Georgia during Discovery Investigations 1927-1937

Zooplankton samples taken around the island of South Georgia with a vertically hauled N70 plankton net during Discovery Investigations in the 1930s were examined and four species of calanoid copepod enumerated. Stations where complete samples or known fractions were available within the top 250 m were identified. The resulting 151 samples, representing 52 scientific stations, spanned the months November through to early March. Analysis focused on the species Calanoides acutus, Calanus simillimus, Calanus propinquus and Rhincalanus gigas. Previous investigations have used standardised abundances of these species from a wider suite of Discovery samples and compared them with contemporary samples to see whether changes have occurred in the last ~80 years. The intention is that these samples will enable further comparisons within a more tightly defined spatial area.