Quantcast

Latest Coastal geography Stories

Our Immune Defenses Originated In Corals 070113
2013-07-01 12:01:26

Brett Smith for redOrbit.com - Your Universe Online Many biological processes have their roots in the very earliest stages of life's evolutionary tree, and new research in the journal BMC Genomics indicates that part of our immune system comes from coral-like ancestors. According to the study, molecular biologists at the ARC Centre of Excellence for Coral Reef Studies (CoECRS) have found genes in Acropora, or staghorn, corals which are responsible for a quick, strong immune response to...

Scuba Fishing Ban To Preserve Hawaii's Vulnerable Species
2013-07-01 10:57:23

Brett Smith for redOrbit.com - Your Universe Online A contentious debate is stirring in the Aloha State between fishermen and those looking to preserve species living in the regions' coral reefs. Hawaii's Board of Land and Natural Resources recently voted to ban spear fishing with scuba gear off the west coast of the state's main island as well as the collection of 40 different species for aquariums. The regulations were approved 4-2 after six hours of hearings. According to...

If Carbon Emissions Aren't Reduced Now, Coral Reefs Will Die
2013-06-28 15:24:29

Lee Rannals for redOrbit.com - Your Universe Online A new study found that in order to prevent coral reefs from dying off, nations need to work hard to drop carbon dioxide emission levels. Researchers wrote in the journal Environmental Research Letters that all existing coral reefs will die from inhospitable ocean chemistry conditions by the end of the century if civilization continues on its current path. Coral reefs are havens for marine biodiversity and underpin the economies of...

Coral Recovery In Light Of Cyclone Yasi Shows Promise
2013-06-07 08:52:34

April Flowers for redOrbit.com - Your Universe Online The coral reefs on Australia´s Great Barrier Reef were devastated by Cyclone Yasi — a Category 5 Hurricane which made landfall in Queensland, Australia, on February 3, 2011. A new study from the ARC Center of Excellence for Coral Reef Studies (CoECRS) shows that large numbers of coral larvae replenished the reefs within nine months of the cyclone. The findings, published in PLoS ONE, provide fresh hope for the ability of...

2013-06-03 23:15:15

The Conservancy is highlighting the benefits of coral, mangrove, sea grass, and shellfish restoration to people and nature including reducing risk from natural disasters for coastal communities and benefits to local economies through tourism and additional fish production Arlington, VA (PRWEB) June 03, 2013 The Nature Conservancy, a leader in global marine restoration, is celebrating science in action with the first annual Restoration Week on June 3rd — June 8th...

Volcanoes Responsible For Coral Reef Diversity
2013-05-22 10:25:08

Michael Harper for redOrbit.com — Your Universe Online A new study claims earthquakes and volcanoes are responsible for the diverse nature of the ocean´s coral reefs. With this information, scientists are now becoming even more worried about global warming. If these monumental geological events play a role in coral creation, it may be even more difficult to replace any reef lost to climate change and rising sea temperatures. This study, conducted by scientists from the ARC...

New Study On Coral Reef Formations Lays To Rest Conflicting Theories
2013-05-14 07:53:01

April Flowers for redOrbit.com - Your Universe Online In the South Pacific, three types of coral reef island formations have fascinated geologists for ages. The coral of Tahiti forms a “fringing” reef, with a shelf growing close to the island´s shore. In Bora Bora, the “barrier” reefs are separated from the main island by a calm lagoon. Manuae represents the last type, an “atoll,” which appears as a ring of coral enclosing a lagoon with no island at...

Coral Reefs Still In Danger But Demise Not Inevitable
2013-05-10 10:20:05

April Flowers for redOrbit.com - Your Universe Online Although scientists agree that coral reefs are in decline, a new study demonstrates that the collapse of such reefs can still be avoided with a combination of local and global action. "People benefit by reefs' having a complex structure — a little like a Manhattan skyline, but underwater," said Peter Mumby of The University of Queensland. "Structurally complex reefs provide nooks and crannies for thousands of species and...

Coral Bleaching Study Explains Different Responses To Climate Change
2013-04-24 12:24:35

Brett Smith for redOrbit.com - Your Universe Online When corals become stressed, they expel their symbiotic algae companions in a process known as “bleaching.” Corals can survive the bleaching, but it leaves them highly vulnerable and often results in die-off. As a changing climate threatens to bleach the corals of the world´s oceans on a massive scale, a team of researchers from Northwestern University has found that some corals facilitate bleaching through the...

Scientists Say More Large Ocean Wilderness Parks Needed
2013-04-15 08:43:45

ARC Centre of Excellence for Coral Reef Studies Leading international marine scientists have called for the protection of more, large marine wilderness areas in a bid to shield the world´s dwindling stocks of fish from destruction. Working in the world´s largest unfished marine reserve, the remote Chagos Archipelago in the central Indian Ocean, scientists from Australia and the US have shown there is a dramatic difference in the numbers, size and variety of fish compared with...


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...

More Articles (4 articles) »
Word of the Day
pungle
  • To take pains; labor assiduously with little progress.
This word comes from the Spanish 'pongale,' put it.
Related