Antarctica 24 King George Island 24 Potter Cove South Shetland Islands 24 Ascidia 6 Ascidiacea 6 Bacillariophyta 6 Cnemidocarpa verrucosa 6 new species 6 plankton 6 primary production 6 Aeginidae 4 Antarctic Peninsula 4 Benthos 4 Cnemidocarpa 4 Cnidaria 4 Coelenterata 4 Dinophyceae 4 Gastropoda 4 Haptophyceae 4 Hydrozoa 4 Invertebrata 4 Mastigophora (flagellates) 4 Nacella concinna 4 Narcomedusae 4 Notothenia rossii 4 Nototheniidae 4 Notothenioidei 4 Patellidae 4 Perciformes 4