Fishes Say, "I Can't Hear You From All The Stress!" (Here's Why)

Khryss | Published 2017-08-25 22:11

I just wish the stressed out fish could take this out to court and have a hearing.

Construction and development (underwater noise pollution, duh) are what's causing the fish to stress out and prevent them from immediately escaping predators.

Researchers from Newcastle University in the UK found that when European seabass (any number of marine fishes that are related to or resemble the common perch, in particular) are exposed to recorded sound effects of drilling and piling, such as the sticking of huge posts in the ground as structure foundations), the sea creatures manifested inclining signs of stress. Canada, among many coastal countries, struggle with this problem, as this is a major concern among environmentalists that noise pollution (including increased marine traffic) could potentially drive some endangered species of whales extinct.

Ilaria Spiga, who led the research, says, "Over the last few decades, the sea has become a very noisy place... effects we saw were subtle changes, which may well have the potential to disrupt the seabass' ability to remain in tune with its environment." Her study focuses on European seabass specifically.

The constant harsh discordant mixture of sounds underwater known as cacophony, can cause problems for these fish when it comes to dealing with their predators, according to the study. Startle and response, a method typically used by the seabass. This is a sort of process wherein they automatically escape from potential predatory danger the moment they hear an unusual sound and get frightened.

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