20 kinds of coral or extinct in the last century the United States has legislation to protect

To 2100, ocean acidification, warming and disease will lead to life in the Pacific and the Caribbean 20 kinds of coral at risk of extinction.


20 kinds of coral or extinct in the last century. (Source: NOAA)

To 2100, ocean acidification, warming and disease will lead to life in the Pacific and the Caribbean 20 kinds of coral at risk of extinction. This view eventually became the basis for the United States National Oceanic and Atmospheric Administration (NOAA), a new resolution – will be added to the list of those species “Endangered Species Act” (ESA) which threatened coral species. When on the move NOAA to be interpreted, the council director of coral reef ecosystems Russell Brainard said: “I do not think that there is no consideration of the actual situation in the premise – the earth is warming, the ocean is changing and will continue to change, we ESA will make any decision on the list. “So far, there have been two coral species is listed as threatened object, which is the ratio of endangered species protection efforts less of a category. NOAA must now consider how to reduce the pressure of the changing composition of coral species – the number of some species has been reduced by 90%.

Back in 2009, the Center for Biological Diversity (CBD) would require NOAA 83 coral species listed according to federal law, and stressed populations of each species in the 30-year period dropped by 30% at least. 2012, NOAA proposed 66 threatened species of coral and two coral – El Kehuo En Caribbean coral and staghorn coral (Acropora palmata and Acropora cervicornis) – joined the list of the largest efforts to protect endangered species. NOAA Fisheries Officer David Bernhart recently told the media that, on each of the abundance of coral species, their location and the latest information on how to threats such as pollution and respond to ocean warming makes the species to be included in the list of threatened species fewer than expected.

CBD’s Miyoko Sakashita said, while protecting the five Caribbean coral and 15 of the Indian Ocean – Pacific Coral “marks on the coral in distress is an important recognition,” but it has not yet reached the level of environmental groups hope to achieve. ESA experts not involved in the latest decision of the ESA, NOAA retired lawyer Melanie Rowland stressed: “This is where there are a number of different reactions, because we thought deserved to get the ultimate protection of coral species and are not protected.” However, for an organization between the initial proposal and the final decision to change his mind, this is nothing unusual, especially where there is some new research appears especially true.

Today, there are 20 kinds of coral appear among the list of threatened species, but the question is how to suppress their numbers decline. State threatened species does not automatically bound by a range of human activities, including fishing and coastal development, including. However, the task of the project other American federal agencies – such as the construction of the port could damage coral – NOAA must now be consulted before implementation. NOAA Pacific Islands Fisheries executive Mike Tosatto said: “Those bigger threats, such as climate change, there will be more severely affected, and more difficult to solve.” He said: “Fishing on land and on land impact of pollution on the ecosystem as a whole is usually small, and we can be addressed more effectively. “

NOAA now has a coral reef conservation program, and will continue to study the impact of climate change on corals, while attempting to reduce the human impact of overfishing on coral reef ecosystems and reduce emissions can lead to coral diseases, land-based pollutants.

However, many scientists worry that these measures alone is not sufficient to save the coral. Has conducted research on the impact of climate change modeling coral Palo Alto, California, the Carnegie Institute of Science climate scientist Katharine Ricke said: “If you can not reduce the concentration of carbon dioxide in the atmosphere, even if there is no amount of good ecosystem These measures can not save coral reefs. “

Coral is Cnidaria Anthozoa marine invertebrates characterized as having a calcareous, horny, or leathery inner skeleton or exoskeleton. The main chemical composition of coral calcium carbonate, microcrystalline calcite aggregate form, there are a number of ingredients in organic matter, mostly dendritic morphology, with longitudinal stripes above, the cross section of each monomer has a concentric shape and coral radial stripes, the color often has white, a few blue and black, not only the image of coral like branches, bright colors beautiful decorations can be done, and there is a high medicinal value.

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