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Port of Vancouver monitors vessel underwater noise

The Port of Vancouver has launched a series of project under its ‘ECHO Program’ with the aim to provide a better understanding of vessel-related cumulative regional threats such as vessel underwater noise and its effects to marine environment.

How to minimize the risk of collisions with cetaceans

AMSA has issued Marine Notice in order to provide guidance to shipowners, operators and seafarers to reduce the risk of collision with cetaceans (whales, dolphins, and porpoises), in accordance with IMO Circular MEPC.1/Circ.674.

Ship noise extends to frequencies used by endangered killer whales

When an endangered orca is in hot pursuit of an endangered salmon, sending out clicks and listening for their echoes in the murky ocean near Seattle, does the noise from the nearby shipping lane interfere with them catching dinner? To find out, scientists measured underwater noise as ships passed their study site 3,000 times. This unprecedented characterization of ship noise will aid in the understanding of the potential effects on marine life, and help with possible mitigation strategies.

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