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LNG Canada Export Terminal Project

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Attachment Comments from Douglas Channel Watch - Kitimat BC

LNG Canada Export Terminal Project
Author: Cheryl Brown
Reference number: 25
Submitted: 2021-01-16 - 9:24 PM
Participation notice: Public Notice - Public Comments Invited on Proposed Changes to Conditions
Comments regarding proposed changes to LNG Canada export Terminal project decision statment condtions 3.9 for marine mammals
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From: Douglas Channel Watch Comments to the Proposed changes to the LNG Canada Export Terminal Project decision statement conditions i.e. 3.9 As an overview: Sound is essential to many types of marine animals and is one of the main tools they use to survive in the ocean. Light can only penetrate a few hundred feet underwater, but sound can travel much farther. As a result, cetaceans (whales, dolphins, and porpoises) have evolved over millions of years to send and receive a variety of complex sounds. They rely on sound to communicate with each other, navigate, find mates and food, defend their territories and resources, and avoid predators. Fish and invertebrates also use sound for basic life functions. Because water is denser than air, sound travels faster and farther in the ocean. Its speed and distance depends on the density of the water (determined by its temperature, salinity, and depth) and the frequency of the sound, measured in hertz (Hz). Some sounds, particularly low-frequency ones, can cover vast distances, even across ocean basins. Depending on the sound source, duration, and location, human- caused sound has the potential to affect animals by: • Causing temporary or permanent hearing loss. • Causing a stress response. • Forcing animals to move from their preferred habitat. • Disrupting feeding, breeding/spawning, nursing, and communication behaviours. The impacts may be immediate and severe, or they may accumulate over time. Mammals have different abilities to hear and the following shows the range. Low-frequency (LF) cetaceans (baleen whales) 7 Hz to 35 kHz Mid-frequency (MF) cetaceans (dolphins, toothed whales, beaked whales, bottlenose whales) 150 ...

Attachment Comment removed by Administrator due to an administrative error

LNG Canada Export Terminal Project
Author: Michael Gentile
Reference number: 24
Submitted: 2020-12-19 - 1:47 PM
Participation notice: Public Notice - Public Comments Invited on Proposed Changes to Conditions

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Date modified:: 2019-03-01