Figure 1.

(a) Map showing the humpback whale sampling location (red star), approximately 3 km off the coast of Sydney, New South Wales, Australia. Purple arrows indicate the typical seasonal migratory routes of the humpback whale from their likely feeding ground in Antarctica (dark green) to their breeding areas around northern Australia (dark red). Photographs demonstrate the Unmanned Aerial Vehicle (UAV) in action. (b) Relative abundance of viruses and their taxonomic families. Taxonomy was based on both protein and nucleotide BLAST search results, taking the best e-value for each (for those with identical e-values, we used the taxa with the closest percentage identity). This included 42 viral families, including 29 families of bacteriophage. Percentages indicate relative abundance of all viruses in the sequence library.