Could Seismic Tests Harm Fish?

Could Seismic Tests Harm Fish?

underwater-fish
Photograph: © SAF – Coastal Care

Excerpts;

Fish might not have fancy communication equipment like whales and dolphins, but they do have their specialized ways of navigating through an ocean filled with predators and mobile food sources. And these honed adaptive responses could potentially be harmed by seismic air guns.

Eight companies are currently seeking to conduct seismic surveys in areas off the southern Atlantic coast between Delaware and Florida to look for oil and natural gas resources. Although oil leases in the Atlantic have been canceled until at least 2023, the federal government is moving forward with mapping the sea floor for hydrocarbon deposits…

Read Full Article, Coastal Review

Sonic Sea, Film Documentary; NRDC May 19th, 2016
Oceans are a sonic symphony. Sound is essential to the survival and prosperity of marine life. But man-made ocean noise is threatening this fragile world. “Sonic Sea” is about protecting life in our waters from the destructive effects of oceanic noise pollution…

Accoustic Pollution and Marine Mammals, Nature
In the Canary Islands, 14 beaked whales washed ashore bleeding from the ears. All eventually died. A post-mortem examination revealed that the whales showed signs of decompression sickness (what scuba divers call “the bends”). Decompression sickness can occur when a mammal swims to the ocean’s surface too quickly, and the change in pressure produces lethal nitrogen gas bubbles that clog its blood vessels. Evidence of acute decompression sickness indicates unusual behavior. Over the past 40 years, cumulative research across the globe has revealed a coincidence between naval sonar testing events and acute decompression sickness in beached marine mammals…

A Rising Tide of Noise Is Now Easy to See, The New York Times (12-15-2012)

Navy study: Sonar, Blasts Might Hurt More Sea Life (05-14-2012)

Accoustic Pollution and Naval Sonar testing, Discover Magazine (01-26-2012)

Coastal Care

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