Between now and April 28, watch live as scientists explore the unknown, potentially encountering shipwrecks, coral, fish, gaseous seeps, and fascinating ocean ecosystems, and prepare to witness active scientific exploration and discovery of America's underwater territory.
Or, if you want an expert to guide you, and the current is running strong that day, you can be pulled by one of the dive staff such as the knowledgeable, affable Trina to a coral and fish dense spot.
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Coral-reef fish tend to grow slowly, take many years to reach reproductive age, and then spawn in only a few localised sites.
It has diverse ecosystems with many marine and coastal species of seagrass, coral reefs, fish used both for consumption and for sale, sea birds, turtles, cetaceans, and mangroves.
His boat tour includes stops at Kanawa and Angel Islands -- on the edge of Komodo National Park -- where sugar-white beaches are surrounded by turquoise waters in which coral and tropical fish are abundant.
Bags for live aquatic creatures in water such as fish, coral, crabs etc are exempt.
Located in a volcanic caldera, the peninsula has 30 year-round scuba sites containing the highest diversity of fish and coral in the world.
It is believed to harbor 250 species of coral, 500 of fish and 600 of mollusks, many of them unique in the world.
Among the new measures proposed are the phasing out of bottom trawls, the heavy gear that scrapes material from the bottom of the sea - fish, coral and anything else in its way.
After all, seeing cool fish and colourful coral is the main reason divers descend below the surface.
The Gnathia marleyi is tiny crustacean that attaches itself to fish that inhabit coral reefs in the Caribbean.
The Coral Sea teems with marine life: giant clams, sea anemones, schools of rainbow-coloured fish, painted tube and staghorn coral inhabit the underwater garden.
Campaigners, with the support of marine scientists, have repeatedly tried to persuade countries to agree to an international ban, arguing that the indiscriminate nature of bottom-trawling is causing irreversible damage to coral reefs and slow-growing fish species, which can take decades to reach maturity and are therefore slow to replenish their numbers.
They hide among coral rubble or algae and ambush unsuspecting fish, infesting them.
The Guardian is estimated to have damaged about 4, 000 square meters (about 43, 000 square feet) of the reef, a UNESCO World Heritage site that is home to about 500 species of fish and 350 species of coral, as well as whales, dolphins, sharks, turtles and breeding seabirds.
The fish are found in shallow water and coral reefs in the Pacific and Indian oceans.
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Over 1, 000 species of fish are happily at home in the now-protected coral reefs, mangroves and seagrass beds.
"Anywhere you go and try to harvest fish with a trawl you are going to destroy any coral that lives there, and there is example after example of the damage that is done by trawlers, " says Ron O'Dor, a senior scientist on the Census of Marine Life.
The coral-fringed coasts, threatened by global warming, teem with unusual fish.
Coral reefs are home to 25 percent of the world's marine fish species, and cover 1 percent of the Earth's surface, making them the largest single living structure on Earth.
Gustillo takes me snorkeling in a coral grove, going so far as to summon a crowd of gorgeous fish by chumming the water with hacked-up bits of less gorgeous ones.
Not only are they home to 25 percent of all marine fish species, but the organization states that 500 million people rely on coral reefs for their food and livelihoods.
The shallow water and remarkable visibility in the seas surrounding Bermuda make diving here an unforgettably vivid experience: a typical dive allows plenty of time to explore the coral encrusted hulls, barnacled cannons and holds populated with a kaleidoscopic array of parrot fish, barracuda and angel fish.
Coral reefs are an essential element in the food chain for coastal people, providing nurseries for fish and shallow hunting-grounds for fishing boats.
Together with the island's other ecosystems such as seagrass meadows, coral reefs and sandy shores, the mangroves serve as a habitat for a variety of birds, fish and plants.
When all the seaweed-eating fish in an area are removed, for example, the seaweed can take over completely, reducing coral cover and thus the diversity of bottom-dwelling organisms.
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