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Image of the front page of Sound Waves, Jan. - Feb. 2011
March 22, 2019

Sound Waves, Jan. - Feb. 2011

The stories in the Jan. - Feb. 2011 issue of Sound Waves:

https://archive.usgs.gov/archive/sites/soundwaves.usgs.gov/2011/01/

Projected Losses of Arctic Sea Ice and Polar Bear Habitat May Be Reduced if Greenhouse-Gas Emissions are

first slide of Florida Coastal Mapping project agency priorities
May 7, 2018

Florida Coastal Mapping project agency priorities

Florida Coastal Mapping project agency priorities.

Daylight and fluorescent images of a Montastrea caverno

Daylight and fluorescent images of a Montastrea cavernosa coral colony growing on the seawall at Ft. Jefferson, Dry Tortugas National Park. The brownish color of the coral in daylight is largely attributable to chlorophyll contained within the symbiotic algae harbored by the coral. The fluorescent image was taken at night using blue LED lights to stimulate

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Image of the front page of Sound Waves, Dec. 2010
March 25, 2019

Sound Waves, Dec. 2010

The stories in the Dec. 2010 issue of Sound Waves:

https://archive.usgs.gov/archive/sites/soundwaves.usgs.gov/2010/12/

California Sea Otter Numbers Drop Again

Search for Evidence of Prehistoric Tsunamis and Great Earthquakes on Chirikof Island,

Image: Collection Of Sediment And Water Sampling Prior To The Possible Occurrence Of Oil Contamination From The Deepwater Horizon Oil Well At Egmont Key, Florida

Collection Of Sediment And Water Sampling Prior To The Possible Occurrence Of Oil Contamination From The Deepwater Horizon Oil Well At Egmont Key, Florida

Bruce Bernard (left) and Scott McBride (right) obtain water and sediment samples at Egmont Key which is about 1 mile west of the mouth of Tampa Bay in the Gulf of Mexico. Samples were collected June 14, 2010 prior to the possible occurrence of oil contamination from the Deepwater Horizon's oil well.

Daylight and fluorescent images of two coral colonies

Daylight and fluorescent images of two coral colonies, Diploria clivosa (left) and Orbicella faveolata (right) growing on the seawall at Ft. Jefferson, Dry Tortugas National Park. The two colonies are separated by an area of dead coral that has been colonized by algae. In the fluorescent image, red corresponds to chlorophyll and green to GFP. Note that

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Image: A Manatee in Florida

A Manatee in Florida

USGS conducts long-term, detailed studies on the life history, population dynamics, and ecological requirements of the West Indian manatee. Federally listed as endangered, the manatee is a large, gentle, plant-eating, and slow-moving marine mammal.