Sentence examples for sonar exercise from inspiring English sources

A preliminary federal investigation into the deaths of 11 harbor porpoises that washed ashore on the Puget Sound last May ended with scientists unable to determine whether a Navy sonar exercise played a role.

These whales were beached on the exact day U.S. Navy destroyers were activated into sonar exercise.

It seems telling that the Navy has accepted the 2,200-yard 2,200-yarde for other safetyexercises.

He also wrote that it was unclear how many marine mammals the Navy's sonar exercises might harm.

The judge also criticized the Navy for curbing its efforts to mitigate the impact of the sonar exercises, adding, "What few mitigation measures remain continue to be ineffective".

Scientists have long suspected a link between mass whale strandings and the Navy's use of powerful sonar systems, but the evidence -- dying whales washing ashore when sonar exercises occur -- has been mostly anecdotal.

In the last decade, observers have noted strandings during or just after naval sonar exercises.

And yet, beaked whales often turn up stranded shortly after the intense sonar exercises the Navy uses to train sailors to detect silent enemy submarines.

Brownell says that melon-headed whales probably aren't affected as often by naval sonar exercises because, unlike beaked whales, they usually hang out far from shore.

In 2000, for example, the U.S. Navy admitted that its sonar exercises led to six beaked whales beaching themselves in the Bahamas.

Marine biologists also began questioning the Navy's midfrequency sonar exercises, which they suspected were harming whales and other marine mammals.