Noise Pollution Threatens Fish

[Anonymous]

From the BBC

This really makes me wonder about our powerheads, pumps, etc...

Fish are being threatened by rising levels of man-made noise pollution.

So say scientists who have reviewed the impact on fish species around the world of noises made by oil and gas rigs, ships, boats and sonar.
Rather than live in a silent world, most fish hear well and sound plays an active part in their lives, they say.

Increasing noise levels may therefore severely affect the distribution of fish, and their ability to reproduce, communicate and avoid predators.

 

[Anonymous]

From the BBC

This really makes me wonder about our powerheads, pumps, etc...

Fish are being threatened by rising levels of man-made noise pollution.

So say scientists who have reviewed the impact on fish species around the world of noises made by oil and gas rigs, ships, boats and sonar.
Rather than live in a silent world, most fish hear well and sound plays an active part in their lives, they say.

Increasing noise levels may therefore severely affect the distribution of fish, and their ability to reproduce, communicate and avoid predators.

I talked to a very nice lady recently who does research on this very subject. They monitor cortisol levels in the water under different sound regimes. She said the gist of it was that fish can become acclimated to constant noise like that created by pumps and powerheads. Sporadic noise really stresses them out.

 

[leftovers]

If you have ever been near a reef? the noise level is tremendous. It's not some quiet pristine soundless nirvana. Its quite loud actually. The wave action actually generates quite a bit of noise much of it regular, i.e. constant and droning with spikes here and there. Deep water fish might appreciate the silence more so than any reef fish.

 

[Anonymous]

I think one might argue that the nature of the noise is just as important as the volume.

 

[leftovers]

I think one might argue that the nature of the noise is just as important as the volume.

one might but the fish probably cant tell the difference....its another stimulus response issue

 

[Anonymous]

I think one might argue that the nature of the noise is just as important as the volume.

one might but the fish probably cant tell the difference....its another stimulus response issue

Based on what?

 

[leftovers]

I think one might argue that the nature of the noise is just as important as the volume.

one might but the fish probably cant tell the difference....its another stimulus response issue

Based on what?

Based on the same ambiguous, vague gernalities presented so far...but in nature actions are typically the result of a stimulus, as to what the actions are remain unclear as the author even states "there might be a correlation" or that sudden spikes in sound also unsettle fish. Really? You mean if i pop a bag behind your head you might react? There is nothing I read so far that is conclusive or directly correlative, its all vague generalities.

kinda like there might be a relationship between french fries and cancer.