Antarctic Regions, Water - parasitology, RNA, Ribosomal, 18S - genetics, Biota, Molecular Sequence Data, Eukaryota - isolation & purification, Genotype, Phylogeny, DNA, Ribosomal - chemistry, Sequence Analysis, DNA, Eukaryota - genetics, DNA, Algal - genetics, DNA, Plant - chemistry, Arctic Regions, DNA, Algal - chemistry, DNA, Protozoan - genetics, Ecotype,...