Whale Watching in Vancouver: A Conservation Success Story and a Wildlife Experience
The waters around Vancouver are becoming a hub for whale watching, thanks to a combination of seasonal movement, food availability, and decades of conservation efforts. A recent study by the University of British Columbia (UBC) reveals that West Coast transient killer whales, also known as Bigg's killer whales, are now spending more time in the inside waters of Vancouver Island, with an average of 250 days per year.
This finding is particularly significant because it highlights the Salish Sea as the most critical feeding habitat for these killer whales along the entire West Coast. According to Andrew Trites, director of the Marine Mammal Research Unit at UBC, the Salish Sea is essentially the most important food stop or grocery store for these whales in all of North America.
The study, published in Marine Mammal Science, analyzed sightings data collected between 2016 and 2023 from various sources, including researchers, commercial whale watchers, and citizen scientists. The results showed that approximately 70% of the coastal population of transient killer whales regularly uses the Salish Sea.
Trites attributes the increase in Bigg's killer whale sightings to the recovery of seal and sea lion populations, which were heavily hunted and culled until marine mammals received new protections in the early 1970s. As these populations rebounded, the killer whales followed, leading to a noticeable change in the wildlife experiences along the Vancouver shoreline.
Trites uses a compelling metaphor, comparing the increasing presence of whales near Vancouver to the Serengeti, suggesting that people can now enjoy wildlife experiences without traveling far. He encourages people to look up from their phones and pay attention to the whales, as the sound of their breathing or surfacing can be unmistakable.
The study also highlights the changing nature of whale watching in B.C. Erin Gless, executive director of the Pacific Whale Watch Association, notes that southern resident killer whales, which were once the main attraction, are now less visible due to their endangered status and strict protection rules. Instead, whale watchers are more likely to see Bigg's killer whales, humpback whales, and grey whales.
The return of humpback whales is another conservation success story. These whales were once common in B.C. waters before commercial whaling wiped them out in the early 1900s. Now, they are making a dramatic comeback, arriving in the Salish Sea to rebuild their energy stores by feeding on the region's cold-water prey.
The increasing presence of whales in Vancouver waters coincides with the sighting of a rare North Pacific right whale, one of the most endangered whale species, off Malcolm Island. This positive sign indicates that the small population of fewer than 50 whales is recovering.
However, Gless emphasizes the need for caution as the number of whales grows. She notes that interactions between humans and whales are also increasing, and vessels must follow specific distance guidelines to ensure the safety of both marine life and humans.
In conclusion, the rising number of whales near Vancouver is a testament to the success of conservation efforts and the changing dynamics of whale watching in the region. It invites people to appreciate the wildlife experiences that are now available in their own backyard, while also highlighting the importance of responsible and respectful coexistence with these magnificent creatures.
