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Latest Coastal geography Stories

Economical Solutions For Maintaining Critical Delta Environments
2013-12-10 08:47:46

Woods Hole Oceanographic Institution Millions of people across the world live or depend on deltas for their livelihoods. Formed at the lowest part of a river where its water flow slows and spreads into the sea, deltas are sediment-rich, biodiverse areas, a valuable source of seafood, fertile ground for agriculture, and host to ports important for transportation. At least half of the deltas around the world are so-called “wave dominated deltas” – open to the sea and under the...

Salt Marsh Ecosystems Need Quality Biodiversity, Not Just Quantity
2013-12-07 06:03:23

redOrbit Staff & Wire Reports - Your Universe Online Scientists have believed for years that preserving more species, no matter which ones, was a key component to enhancing how well an ecosystem performs. A research team from Duke University and the University of Massachusetts at Boston investigating biodiversity loss in a salt marsh says that this isn't quite right. Their findings, published in Proceedings of the National Academy of Sciences, show that it's not just the total...

Fishing Has Reduced Vital Seaweed Eaters By More Than Fifty Percent
2013-12-04 19:27:07

Scripps Institution of Oceanography, UC San Diego In the first global assessment of its kind, a science team led by researchers at Scripps Institution of Oceanography at UC San Diego has produced a landmark report on the impact of fishing on a group of fish known to protect the health of coral reefs. The report, published in the journal Proceedings of the Royal Society B (Biological Sciences), offers key data for setting management and conservation targets to protect and preserve fragile...

2013-12-04 19:18:10

Virginia Institute of Marine Science Left to themselves, coastal wetlands can resist rapid levels of sea-level rise. But humans could be sabotaging some of their best defenses, according to a Nature review paper published Thursday from the Virginia Institute of Marine Science and the Smithsonian Environmental Research Center. The threat of disappearing coastlines has alerted many to the dangers of climate change. Wetlands in particular—with their ability to buffer coastal cities from...

Marine Pollution Impact On Corals Is Harsh, But They Can Recover
2013-11-26 14:24:00

[ Watch the Video: Protection From Marine Pollution Would Help Coral Reefs Recover ] Brett Smith for redOrbit.com - Your Universe Online A new study on coral reefs from a team of Florida and Oregon researchers has found common marine pollution doubled the rate of disease among corals and more than tripled the amount of coral bleaching, an early sign of reef stress. According to the team’s report in Global Change Biology, a three-year, controlled exposure of corals to high levels of...

Abundant, Dominant Corals Still Face Threat Of Extinction
2013-11-16 06:48:46

April Flowers for redOrbit.com - Your Universe Online Scientists generally assume that corals do not face a risk of extinction unless they become very rare, or their range is restricted. A new study, published in the journal Bioscience, reveals that global changes in climate and ocean chemistry affect corals whether scarce or abundant, and often it is the dominant, abundant corals with wide distributions that are affected the most. A research team, led by Charles Birkeland from the...

2013-11-12 08:46:24

LANDOVER, Md., Nov. 12, 2013 /PRNewswire/ -- The Khaled bin Sultan Living Oceans Foundation launches a new website to illustrate their findings from one of the largest coral reef research projects ever conducted. The Foundation's Global Reef Expedition is a six-year circumnavigation of the planet involving more than a hundred scientists from many nations. To view the multimedia assets associated with this release, please click:...

2013-11-01 04:20:35

Using an innovative approach, the project will contribute to the resiliency of Matagorda Bay AUSTIN, Texas, Nov. 1, 2013 /PRNewswire-USNewswire/ -- The Nature Conservancy has begun work to reconstruct Half Moon Reef, a once-massive oyster reef that has virtually disappeared over the last century in Matagorda Bay, one of the largest estuaries and most productive fisheries in Texas. (Photo: http://photos.prnewswire.com/prnh/20131101/DC07842) During November and December, crews will...

A Changing Climate May Not Spell Doom For Coral Reefs After All
2013-10-30 09:18:53

April Flowers for redOrbit.com - Your Universe Online A new study from the National Oceanic and Atmospheric Administration (NOAA) and its academic partners reveals that coral reefs may be able to adapt to moderate climate warming, improving their chance of surviving through the end of this century, if there are large reductions in carbon dioxide emissions. The findings, published online in the journal Global Change Biology, also suggest corals have already adapted to part of the warming...

Coral Chemical Affects Climate
2013-10-24 15:24:33

Brett Smith for redOrbit.com - Your Universe Online Anyone who has ever been to the ocean knows that signature smell of sea water. One of the molecules responsible for that smell is actually derived from a chemical made by tiny coral animals called dimethylsulphoniopropionate (DMSP). According to a new study in the journal Nature, Australian marine scientists have discovered the first evidence that DMSP plays a major role in local climate. The molecule offers the coral animals cellular...


Latest Coastal geography Reference Libraries

Coral Reef
2013-04-20 15:49:21

Coral reefs are submerged structures consisting of calcium carbonate secreted by corals. Coral reefs are colonies of small animals found in marine waters that enclose few nutrients. The majority of coral reefs are constructed from stony corals, which then consist of polyps that come together in groups. The polyps are like small sea anemones, to which they are very closely related. Unlike the sea anemones, coral polyps secrete hard carbonate exoskeletons which provide support and protections...

Mudflats
2013-04-19 21:07:34

Mudflats, or otherwise known as tidal flats, are coastal wetlands that form when mud is left behind by tides or rivers. They’re found in sheltered regions such as bayous, lagoons, estuaries, and bays. Mudflats might be seen geologically as exposed layers of bay mud, a result from the deposition of estuarine silts, marine animal detritus, and clays. The majority of the sediment in a mudflat is within the intertidal zone, therefore the flat is submerged and exposed about twice per day. In...

Salt Marsh
2013-04-19 21:04:15

A salt marsh, also otherwise known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone that lies between the land and the open salt water or brackish water that is routinely flooded by the tides. It’s dominated by dense stands of salt-tolerant plants, for example, herbs, grasses, or low shrubs. These plants originate from all around the globe and are important to the stability of the salt marsh in trapping and binding sediments. Salt marshes...

Basic Ocean Terms
2013-02-05 12:52:11

Image Credit: Meteorologist Joshua Kelly When meteorologists are forecasting for ocean-going vessels, there are a few terms that we need to understand. The first term is wavelength. Wavelength is defined as the distance between two crests or between two troughs as seen in the image above. The example above highlights the crest to crest concept of wavelength. The next term that we use is wave height, and to determine this, we first must look at the wave when it passes our station. When...

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