Silencing the Seas: The Fight Against Vessel Noise Pollution in the Arctic
In the remote waters of the Northwest Passage, a sinister force is silencing one of the Arctic's most iconic creatures. Narwhal calls, once echoing through the soundscapes of Tasiujaq, or Eclipse Sound, have dwindled to near silence. The culprit? The relentless hum of shipping vessels.
The Nordic Odyssey, a 225-meter ice-class bulk carrier servicing nearby iron ore mines, is a prime offender. As it approaches the narwhals' migration route, its low engine rumble gives way to a cacophony of collapsing bubbles from its propeller. The acoustic signals that were once the narwhals' voice are now overwhelmed by the noise.
"It's like they're disappearing," says Alexander James Ootoowak, an Inuk hunter and field technician on the research team that deployed hydrophones to study these acoustic overlaps. "Narwhals stop calling or move away from approaching vessels when they hear them."
Otoowak is not alone in his concerns. Research published this year adds to mounting evidence that underwater radiated noise β sound energy emitted by ships through hulls, propellers, and machinery β is disrupting marine life.
"The maritime industry has long recognized that underwater radiated noise is wasted energy," says Giorgio Burella, a naval architect at Robert Allan, a Vancouver-based company. "But implementing solutions takes time."
So what can be done? Designing quieter ships, rerouting around sensitive areas, and slowing down vessels are all potential solutions. The mining company that owns the Nordic Odyssey has already taken steps to reduce noise by implementing convoy operations and speed limits.
However, not everyone is optimistic about the pace of change. "Even when ships operate below quiet certification standards, the noise can still disrupt highly sensitive species," warns Joshua Jones, an oceanographer at the Scripps Institution of Oceanography.
Otoowak believes that all vessels entering Arctic waters must take efforts to reduce their noise. "In the acoustic world of narwhals, every engine matters," he says.
The stakes are high, but the call for action is clear. As Lindy Weilgart, a marine biologist, puts it: "Once you know, you do something, now." The future of the Arctic's wildlife depends on it.
In the remote waters of the Northwest Passage, a sinister force is silencing one of the Arctic's most iconic creatures. Narwhal calls, once echoing through the soundscapes of Tasiujaq, or Eclipse Sound, have dwindled to near silence. The culprit? The relentless hum of shipping vessels.
The Nordic Odyssey, a 225-meter ice-class bulk carrier servicing nearby iron ore mines, is a prime offender. As it approaches the narwhals' migration route, its low engine rumble gives way to a cacophony of collapsing bubbles from its propeller. The acoustic signals that were once the narwhals' voice are now overwhelmed by the noise.
"It's like they're disappearing," says Alexander James Ootoowak, an Inuk hunter and field technician on the research team that deployed hydrophones to study these acoustic overlaps. "Narwhals stop calling or move away from approaching vessels when they hear them."
Otoowak is not alone in his concerns. Research published this year adds to mounting evidence that underwater radiated noise β sound energy emitted by ships through hulls, propellers, and machinery β is disrupting marine life.
"The maritime industry has long recognized that underwater radiated noise is wasted energy," says Giorgio Burella, a naval architect at Robert Allan, a Vancouver-based company. "But implementing solutions takes time."
So what can be done? Designing quieter ships, rerouting around sensitive areas, and slowing down vessels are all potential solutions. The mining company that owns the Nordic Odyssey has already taken steps to reduce noise by implementing convoy operations and speed limits.
However, not everyone is optimistic about the pace of change. "Even when ships operate below quiet certification standards, the noise can still disrupt highly sensitive species," warns Joshua Jones, an oceanographer at the Scripps Institution of Oceanography.
Otoowak believes that all vessels entering Arctic waters must take efforts to reduce their noise. "In the acoustic world of narwhals, every engine matters," he says.
The stakes are high, but the call for action is clear. As Lindy Weilgart, a marine biologist, puts it: "Once you know, you do something, now." The future of the Arctic's wildlife depends on it.