(2011) show a loss of 87% Acropora palmata
coral between 1996 and 2002 in the Florida Keys area.
Two species that have external fertilization of their gametes, Acropora palmata
(Lamarck, 1816) and Orbicella franksi (Gregory, 1895), were used to assess the impact of [H.sub.2][O.sub.2] on fertilization and settlement.
In lab tests with seawater modified to reflect conditions expected later this century, sperm of the elkhorn coral, Acropora palmata
, fertilized eggs 13 percent less often on average compared with sperm in today's seawater, says Rebecca Albright of the University of Miami.
The research results suggest that ocean acidification could severely impact the ability of coral reefs to recover from disturbance, said the authors.Elkhorn coral, known as Acropora palmata
, is recognized as a critical reef-building species that once dominated tropical coral reef ecosystems.
The coral bears a close physical resemblance to the critically endangered and fast-vanishing elkhorn coral (Acropora palmata
) of the Atlantic Ocean, but genetic analysis has shown it to be a different species.
* Crest: dominated by Acropora palmata
(with large sizes) and Millepora complanata.
and Mexico; Mead's milkweed (Asclepias meadii), a prairie plant of the central Midwest; and the elkhorn coral (Acropora palmata
), a reef-building species of the Caribbean.
Elkhorn coral, Acropora palmata
, was one of the first corals listed under the U.S.
The two species added, staghorn (Acropora cervicornis) and elkhorn (Acropora palmata
), have both suffered a 97 percent decline since the late 1970s due to a combination of disease and human disturbance.
Patterson and Porter have discovered that white pox disease, which targets elkhorn corals (Acropora palmata
), is caused by the fecal bacterium Serratia marcescens.