John Ford has spent over 45 years studying the orcas along the West Coast and their distinct vocalizations. Through a new online database, the public now has access to these recordings, raising hopes for better conservation efforts, particularly in preventing vessel strikes.
As a former scientist with Fisheries and Oceans Canada, Ford began documenting orca sounds during his graduate studies in the late 1970s. He discovered that different subgroups of orcas use unique calls to communicate within their family groups while hunting and foraging across vast distances.
The calls, categorized into smaller pods and larger populations like the northern and southern residents, remain consistent over generations, indicating a form of vocal tradition within the orca communities. The online call catalogue, developed by Simon Fraser University’s HALLO project, now allows users to explore and filter calls by clan and pod, aiding in population identification.
The tool enables citizen scientists and researchers to match whale sounds from hydrophone networks to the catalogue, aiding in the protection of orcas from potential dangers, including vessel collisions. The critical role of this database becomes evident in safeguarding the southern resident orcas, a population on the brink with only 75 individuals left.
While the current catalogue focuses on known populations, efforts are underway to expand its scope and encourage global collaboration in documenting local orca groups. This initiative marks a significant advancement in orca research and conservation, providing valuable insights for researchers worldwide.