Tag Archives: Porpoise

Canadians produce mariner’s guide to whales; can U.S. follow?

If knowledge is power, officials in British Columbia have taken a strong step to protect whales by producing a booklet that can help ship captains reduce the threats to marine mammals.

The “Mariner’s Guide to Whales, Dolphins and Porpoises of Western Canada” (PDF 39.3 mb) was compiled and published by the Coastal Ocean Research Institute, a branch of the Vancouver Aquarium. Financial support came from nearby ports.

The guide is just one step in resolving conflicts between ships and whales, but it seems like a worthwhile move. If people who control the ships are willing to put scientific information into action, they could avoid cumbersome regulations along with unintended consequences that sometimes arise from political battles.

“The purpose of this guide is to help mariners reduce their risk of striking and killing, or seriously injuring a cetacean (whale, dolphin or porpoise),” writes researcher Lance Barrett-Lennard in a preface to the guide. “It includes descriptions of frequently encountered whales and dolphins, locations along the coast where cetacean densities are highest, and simple measures they can take to greatly reduce their risk of striking a whale, dolphin or porpoise.

“I have yet to meet a mariner who doesn’t feel terrible if his or her ship hits a cetacean … so I know the motivation to reduce strikes is there,” Lance continued. “The key is knowing how to do it. To that end, I hope that bridge crews on vessels transiting through B.C. coastal waters will use the information in this guide to reduce the risk of hitting a whale on their watch.”

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