Responsible whale watching is whale watching that adheres to the core whale watching principles identified by the International Whaling Commission's body of experts in 1996. In brief, responsible whale watching manages the potential impacts to the animals that are being watched, and allows the animals to determine the nature and duration of interactions as much as possible. Why is this important?
Whale watching is usually perceived as an ‘eco-friendly’ venture – an activity that gives value to whales as one of nature’s spectacles for humans to enjoy, and that can contribute to local communities and economies. However, many studies have shown that whale watching activities, when not conducted responsibly, have the potential to significantly disturb, and ultimately decrease the chances of long-term survival of the animals that are being watched 1-3.
Many whale and dolphin populations are facing serious threats – and whale watching should not add to these: Most baleen (and some toothed) whale populations suffered severe declines after centuries of whaling. While many baleen whale populations are recovering since the world-wide moratorium on commercial whaling came into effect in 1986, some do not appear to be increasing4,5, and all whale and dolphin populations face a number of new modern-day threats, among them accidental entanglement in fishing gear (known as bycatch)6,7, climate change4,8-11, ship strikes4, 12-14, marine pollution and loss or deterioration of important habitat15-18. Unfortunately, whale watching has the potential to contribute to these pressures.
Boat-based whale watching exposes whales and dolphins to underwater noise, as well as the risk of injury from collision with the boat’s hull or propeller19,20. The presence of boats can distract the animals from important behaviours like resting, socializing or feeding1,3,21. Being distracted from these activities can have a negative impact on individual animals, particularly those that are more vulnerable like calves, pregnant females and females still nursing their young. The potential harm increases when more vessels are present, and when boats are present more frequently and for longer periods.
Whale-watching has the potential to disturb the whales and dolphins they target: Whales and dolphins are mammals with similar stress response systems to other mammals, including humans. Many whale and dolphin species have exceptionally strong family bonds, with calves of most species being dependent on their mothers for feeding and learning for at least 6 months, if not several years. Bearing these characteristics in mind, the intrusion from whale watching vessels can be likened to having someone enter your home operating some loud machinery while you are trying to eat a meal, sleep, or help your child read or do homework. You might be able to tolerate this for 30 minutes a day, or a few times a week, but imagine this intrusion taking place for several hours every single day without end, or having not one, but five people enter your home, each operating a jack hammer, vacuum cleaner, or electric drill. Not only would you find it difficult to continue eating your meal, sleeping, or talking with your child, but your stress levels would increase, elevating your heart rate and blood pressure, and causing stress hormones to surge through your body. This is likely what many groups of whales or dolphins experience at popular tourist sites where there are no restrictions on the type of boats, the number of boats, or the frequency of tours that are allowed to be conducted.
Guidelines and regulations can help to reduce disturbance to whales and dolphins: In many parts of the world, local, regional or national governments have introduced regulations to minimize the disturbance to whales or dolphins by limiting the number of tour operators, vessels, times of day or number of tours that can be conducted in a specific area. These regulations usually also include strict approach guidelines, limiting the vessel speeds and specifying the distances that boats must maintain from groups of whales or dolphins. Returning to our ‘uninvited noisy visitor’ analogy: the intrusion would be slightly more tolerable if you could ensure that the intruders with their loud machinery stayed outside your front door, in the next room - or better yet, down the road. If you or your children became curious, and wanted to see what they were doing, you could walk down the road and have a brief look, and then return to the safety of your home to continue your meal or sleep or homework. This is the principal that should guide most whale and dolphin encounters: allowing the animals to determine, as much as possible, how they choose to interact with the vessel, rather than approaching too closely, pursuing or harassing the animals in other ways.
Responsible whale-watching with an educational component can create a net conservation gain for whales and dolphins, rather than a long term negative impact: Some regulations, such as those in New Zealand, go further to stipulate that whale watching tours should not only try to limit the potential negative impacts that they have on the target animals, but that they should aim to have a net conservation benefit, by including services “of sufficient educational value”. Many hope that participation in whale watching tours with a strong educational component has the potential to raise tourists’ environmental awareness and render them more willing to play a more active role in conservation efforts22.
Given the multiple threats that whales and dolphins face in the modern world, it is important that tourists, tour operators, and managers all work together to ensure that the whale watching in which they play a role does not compromise the well-being and future survival of the animals they are watching: