Teach this to everyone – adults, kids, locals and tourists!
Posts Tagged ‘coral reef’
“The world’s oceans are now more acidic than they have been for at least 300 million years, which scientists who made the discovery warn poses a threat of mass extinction of marine species worldwide.
The change in the ocean’s chemistry is said to be due to carbon dioxide emissions from the burning of fossil fuels.
This, combined with overfishing and pollution, imperils marine life on which billions of people depend..”
Scroll down and then keep on scrolling to see how many sharks are killed each hour. Very very sad!
ScienceDaily (Dec. 21, 2011) —” A 14-year study by the Wildlife Conservation Society in an atoll reef lagoon in Glover’s Reef, Belize has found that fishing closures there produce encouraging increases in populations of predatory fish species. However, such closures have resulted in only minimal increases in herbivorous fish, which feed on the algae that smother corals and inhibit reef recovery. The findings will help WCS researchers in their search for new solutions to the problem of restoring Caribbean reefs damaged by fishing and climate change.
The study appears in an online version of Aquatic Conservation: Marine and Freshwater Ecosystems. The authors include:..”
They will be the first entire ecosystem to be destroyed by human activity, says top UN scientist
Coral reefs are on course to become the first ecosystem that human activity will eliminate entirely from the Earth, a leading United Nations scientist claims. He says this event will occur before the end of the present century, which means that there are children already born who will live to see a world without coral.
The claim is made in a book, which says coral reef ecosystems are very likely to disappear this century in what would be “a new first for mankind – the ‘extinction’ of an entire ecosystem”. Its author, Professor Peter Sale, studied the Great Barrier Reef for 20 years at the University of Sydney. He currently leads a team at the United Nations University Institute for Water, Environment and Health.
The predicted decline is mainly down to climate change and ocean acidification, though local activities such as overfishing, pollution and coastal development have also harmed the reefs. The book, Our Dying Planet, published by University of California Press, contains further alarming predictions, such as the prospect that “we risk having no reefs that resemble those of today in as little as 30 or 40 more years”.
The Marshall Islands government has created the world’s largest shark sanctuary, covering nearly two million sq km (750,000 sq miles) of ocean.
The Pacific republic will ban trade in shark products and commercial shark fishing throughout its waters.
Tourism, including diving, is a staple of the Marshall Islands archipelago, which is home to just 68,000 people.
Sharks and their near relatives such as rays are seriously threatened by issues such as habitat loss and fishing.
About a third of ocean-going sharks are on the internationally-recognised Red List of Threatened Species.
“In passing this [shark protection] bill, there is no greater statement we can make about the importance of sharks to our culture, environment and economy,” said
Those who have participated in Pacific Islands Conservation Initiatives month-long rubbish roundup have thus far collected over 400kg of rubbish and theyre not finished yet. Pacific Islands Conservation Initiative (PICI) is working in conjunction with Pacific Divers to clean up Rarotonga during the month of September.
ScienceDaily (Sep. 30, 2011) — Sharks are in big trouble on the Great Barrier Reef and worldwide, according to an Australian-based team who have developed a world-first way to measure rates of decline in shark populations.
“There is mounting evidence of widespread, substantial, and ongoing declines in the abundance of shark populations worldwide, coincident with marked rises in global shark catches in the last half-century,” say Mizue Hisano, Professor Sean Connolly and Dr William Robbins from the ARC Centre of Excellence for Coral Reef Studies and James Cook University.
“Overfishing of sharks is now recognized as a major global conservation concern, with increasing numbers of shark species added to the International Union for the Conservation of Nature’s list of threatened species,” they say in the latest issue of the international science journal PLos ONE.
“Evaluating population trends for sharks is complicated,” explains Professor Connolly. “The simplest approach of looking at trends in fisheries catches doesn’t work well for sharks. First, many countries with coral reefs don’t keep reliable records of catches or fishing effort.