CORAL BLEACHING is the massive loss of photosynthesising zooxanthellae from most coral polyps
within a coral colony.
What these coral polyps
are doing, day in, day out, seven days a week, 365 days a year, is taking calcium ions [[Ca.
As a long-standing leader in the fluorescent protein field, Clontech is proud to have worked with Professor Lukyanov to commercialize his groundbreaking discovery of fluorescent proteins from coral polyps
, notably the discovery of the first red fluorescent protein, DsRed.
A coral polyp
is an animal that hunts at night, catching tiny drifting animals called zooplankton with their stinging, harpoon-tipped tentacles.
Bleaching is an event in which the zooxanthellae of the corals, which give corals their beautiful colors, are expelled from the coral polyps
, leaving the colonies white.
Corals rely on algae that live inside each coral polyp
to provide nutrients and supplemental oxygen.
Boat anchors tear up reefs and plow furrows through the grass beds, and the mere touch of a diver or snorkeler can kill the fragile coral polyp
Several imaging techniques reveal cyanobacteria inside the cells that form the outer layer of the coral polyp
, say the researchers.
Three interesting exhibits are the zooxanthellae (or "zoox"), plantlike organisms that live inside coral polyps
, gobbleguts, a type of cardinal fish, and the anemonefish--can you find 'Nemo'?
In one of the first activities, individuals played the roles of coral polyps
, zooxanthellae, the algae that feed the corals, and the protective calcium carbonate skeleton.
When divers swim too close to the coral, they may inadvertently stir up benthic sediment thereby subjecting coral polyps
to increased sedimentation loads.
Crown-of-thorns starfish predation on coral polyps
accounts for 50 percent of the cover loss on the reef in the past 30 years, according to the AIMS.
When placed (usually in groups) the reef balls form small artificial reefs that encourage the adhesion and growth of coral polyps
, thus improving the marine ecosystem," QP said.
Outbreaks of the large, poisonous and spiny starfish, which feast on coral polyps
, was linked to 42 percent of the destruction.
He said tackling the problem of the large, poisonous and spiny crown-of-thorns starfish, which feast on coral polyps
and can devastate reef cover, was under way.