Noise Pollution

Why is sound crucial for marine life in the ocean?

• Light travels far underwater, making sound less important.

• Marine creatures rely on sound for survival, including finding food, communicating, and navigating.

• The ocean is a silent wilderness, so sound is only for humans.

• Sound is primarily used by marine life for entertainment.

What is a significant threat to ocean life caused by human activities?

• Increased light pollution from coastal cities.

• Noise pollution from human activities.

• Overfishing leading to silent oceans.

• Changes in ocean salinity.

What device is Michel André using to study ocean sound?

• A specialized underwater camera.

• An artificial ear, also known as a hydrophone.

• A sonar device to create noise.

• A robotic submarine for visual observation.

What event in 2002 highlighted the detrimental impact of human-made noise on marine life?

• A large oil spill in the Mediterranean Sea.

• The discovery of a new species of whale.

• Multiple beaked whales stranding on beaches in the Canary Islands.

• A global agreement to reduce shipping traffic.

What is the primary effect of low-intensity sound on squid?

• It causes them to swim faster.

• It damages their eyes, impairing vision.

• It affects their balance by destroying noise-sensitive hairs in their statocysts.

• It makes them change color as a defense mechanism.

How has the understanding of ocean noise pollution's impact evolved?

• It was initially thought to affect only fish, but now only whales are known to be affected.

• It was initially thought to affect only a few species like whales and dolphins, but now thousands of species are known to be affected.

• It was initially thought to affect only invertebrates, but now only fish are known to be affected.

• It was always understood to be a global effect impacting all marine life equally.

What is the main objective of the LIDO project?

• To develop new, quieter ship engines.

• To create a global network for tracking marine mammal migration.

• To map the soundscape of the entire ocean and identify sound sources.

• To design advanced sonar systems for deep-sea exploration.

What is a notable characteristic of noise pollution compared to other forms of ocean pollution?

• Its impact is permanent and irreversible.

• It primarily affects only the largest marine animals.

• Its impact is short-lived and disappears once the sound source is removed.

• It is more difficult to detect and measure than chemical pollution.