Sentences with phrase «of elkhorn»

Specimens of elkhorn coral living in water with excess carbon dioxide have been studied for fertilization rates, ability of larvae to settle on reef substrate (where they produce new corals), and subsequent growth and survival.3 Three levels of carbon dioxide were tested, corresponding to concentrations today, at mid-century, and at the end of the century on a high - emissions path.3, 5 At the mid-century concentration, the ability of fertilization to occur and for larvae to settle successfully on the reef was significantly reduced: around 52 percent, and the decline intensified to about 73 percent at the late - century concentration.3 The corals» ability to survive over the long run declined as well, by an average of 39 percent and 50 percent respectively.3, 4

Many studies have demonstrated the risks that ocean acidification pose to marine organisms, such as coral dissolving in more acidic water.6 However, new findings suggest that the August and September time period could be particularly challenging for the earliest life stage of elkhorn coral — an important reef - forming coral of the Caribbean — if we continue on a path of high carbon dioxide emissions.5 Ordinarily each August or September elkhorn corals flood the water with eggs and sperm (gametes) for sexual reproduction.2

Stands of elkhorn, club finger and shallow - water starlet corals, giant green anemones and arious urchins occupy the shallow lagoon habitat.

Magnificent stands of elkhorn, meandrine brain, large cactus, thin fungus and staghorn coral form crowded coral stands.

Karpata combines abundant marine life with groves of elkhorn coral starting in shallow water.

In the last 30 years, many populations of elkhorn coral have collapsed, thanks to disease outbreaks, hurricanes and elevated temperatures.

Carne and her research team collected broken pieces of elkhorn and staghorn corals — critically endangered and nearly 98 percent wiped out — from the healthy reefs and moved them to eight coral nurseries.

Like all living museums in the sea, the Kidd shipwreck protects biological resources — most notably, relatively large populations of elkhorn and staghorn coral — as well as archaeological resources.

Not exact matches

Two Atlantic Ocean coral species — elkhorn and staghorn — are listed as «threatened» under the Endangered Species Act, and NOAA is considering whether an additional 82 coral species also warrant some level of protection under the law because of threats from warming water, ocean acidification and pollution.

In 1996, researchers discovered irregularly shaped white lesions on elkhorn corals off Key West, Florida, that were killing the thin layer of living tissue that sheaths the limestone skeleton of coral colonies.

Lead author and TED Senior Fellow Kristen Marhaver from the CARMABI Foundation on the Caribbean island of Curaçao said: «Strangely enough, pillar corals happen to spawn just half an hour before another threatened coral that is far better studied — the elkhorn corals.

Firstly, in the late 1970s, a condition called white - band disease swept through the reefs, killing 90 per cent of the most spectacular tree - like elkhorn and staghorn corals.

An international team of researchers recently bred elkhorn corals (Acropora palamata) in a laboratory setting, to be used to repopulate critically endangered Caribbean reefs.

This area offers many of Turneffe's best wall dives, and there are also numerous shallow to mid-depth sites that showcase intricate formations of staghorn, elkhorn, brain and lettuce leaf corals.

These hulking hard - coral castles are topped with staghorn, elkhorn and brain coral growth, and decorated in a colorful array of gorgonians and sponges.

It has two types of reefs, a shallow reef that extends to 30 ft and a very wide, deep reef beginning at 40 ft and extending to 80 ft.. The shallow reef features mature elkhorn and huge masses of lettuce coral that look like loaves of bread densely covered with a growth of lettuce leaves.

Staghorn, elkhorn, brain and lettuce coral are all here in abundance, as are gorgonian sea fans of pale green, deep purple and red that add to the riot of colors and shapes.

Colonies of these polyps form the reef structure growing in strange and exotic shapes from which the different varieties of corals take their popular names, such as brain coral, staghorn coral and elkhorn coral.

Several natural breaks exist in the Buck Island reef, allowing you to swim into coral gardens where the most fish tend to congregate (beware that elkhorn coral grows nearly to the surface of the water: trying to swim over it will give you some nasty cuts and an unsympathetic scolding from the tour operators who previously warned you).

There are many varieties of corals, but the major reef - building ones are the massive forms of brain coral; various types of finger coral; two well - known branching corals, elkhorn and staghorn; and sheet coral.

A favorite destination is Laughing Bird Caye National Park, which supports large stands of staghorn and elkhorn corals, along with thick growths of tunicates and anemones.

Shallower sites in this region feature groves of staghorn, elkhorn and brain corals, covered in schools of blue tangs, wrasse, grunts, and snappers, and harboring queen angelfish, parrotfish and spotted trunkfish.

The Goulding Cay Reefs, located just off New Providence island, are teaming with tons of tropical colored fish and picturesque elkhorn coral.

The reef around the rim of the hole is only a few feet below the surface and colored by anemones, elkhorn, starlet and club finger corals - an excellent site for snorkeling but that's not what we're here for...

The next generation of polyps uses these skeletons, eventually resulting into these amazing shaped structures we now know amongst others as staghorn, elkhorn, brain, mushroom and pillar corals.

You can go for snorkeling and spot marine creatures like brain and elkhorn corals, school of brilliantly colored fish, urchins and many more.

With a gentle northern current all groups could fully enjoy what the site has to offer, especially the amazing concentration of smaller reef fish of all sorts of colors hovering on top of staghorn, elkhorn and other species of coral.

Different species of coral are distinguished by the color and shape of these calcium carbonite deposits called corallites, including elkhorn, large star, finger, brain and plate coral.

Our first dive of the day happened in Melissas Garden, one of the archipelagos most extensive hard coral garden, formed of species such as elkhorn, staghorn, elephant ear, and others.

On the sightseeing and snorkeling tour you will enjoy beautiful sights of spectacular corals, such as elkhorn coral, sheet coral, grooved brain coral, finger corals and many more.

Due to the intact connectivity of the extensive seagrass beds, desnse mangrove forests, and robust coral reefs, the remoteness of the area, and the history of protection from coastal development, the Gardens of the Queen represents a «baseline» for a nearly pristine Caribbean marine ecosystem; an ecosystem that includes healthy populations of apex predators like sharks and groupers, important grazers like Rainbow parrotfish and long - spine sea urchins, and recovering endangered species like elkhorn coral and hawksbill sea turtles.

One - year - old colonies of endangered elkhorn coral grown in an aquarium were cemented to boulders along the Curacao coast in August, 2012.

Many reefs across the Caribbean, * right up to the Florida Keys, have been devastated since the 1970s by a series of assaults from introduced diseases of Acropora coral (elkhorn and staghorn) and sea urchins (which help keep algae at bay), compounded by flows of pollution and overfishing accompanying rapid development.

The film will also describe a coral propagation effort pursued by the Secore Foundation, Carmabi Foundation and Curaçao Sea Aquarium — in particular the work of Valérie F. Chamberland, a biologist who has spent nearly five years cultivating extremely endangered elkhorn coral in tanks and cementing them on boulders just offshore.

As their name suggests, elkhorn coral (Acropora palmata) grow in a branching pattern similar to the horns of an elk.

In 2005, during the hottest average decade on record, 8 low - wind conditions known as «the doldrums» combined with very high ocean temperatures to cause massive coral bleaching in the Virgin Islands.9 This was followed by a particularly severe outbreak of at least five coral diseases in the Virgin Islands, resulting in a decline in coral cover of about 60 percent.9 There is some indication that higher ocean temperatures — between 86 and 95 degrees Fahrenheit (30 to 35 degrees Celsius)-- promote optimal growth of several coral pathogens.9 Other research showed that elkhorn coral post-bleaching had larger disease lesions than unbleached specimens, suggesting that bleaching may increase the corals» susceptibility to disease.9, 10

Once the dominant reef builder of the Caribbean Sea, elkhorn coral (Acropora palmata) can be found as far north as Florida and as far south as Venezuela.2 It typically lives on the side of the reef facing the open ocean, thereby taking the brunt of waves kicked up during storms and protecting communities on the nearby shoreline.