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News articles on oceans

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Mongabay.com news articles on oceans in blog format. Updated regularly.

Stopping ocean acidification would save billions of dollars in revenue

(11/12/2008) A new report from Oceana shows that action taken now to curb ocean acidification would not only preserve the world's coral reefs, but also save billions in lost revenue in the fishing and tourism industries.


Supreme Court lifts ban on sonar testing, whales lose

(11/12/2008) A Supreme Court decision will allow the Navy to continue its of sonar in training exercises off the coast of California, a defeat for environmental groups who say sonar is harmful to whales, reports the Associated Press.


Effects of ocean acidification will come 30 years earlier than expected

(11/11/2008) The Southern Ocean may be 30 years closer to a tipping point for ocean acidification than previously believed, putting sea life at risk, according to research published in this week's Proceedings of the National Academy of Science.


Facing extinction from rising seas, Maldives establishes fund to buy homeland abroad

(11/10/2008) The Maldives will establish a trust fund to buy a homeland abroad once rising sea levels swamp the island nation, says Mohamed Nasheed, president-elect of the Maldives. The funds would come from the country's revenue from tourism.


Hundreds of rare and bizarre marine species discovered

(11/09/2008) The evolutionary origin of deep sea octopuses, new species populating an underwater "continent", 12,000 amphipods crowding a square meter in the Gulf of Mexico, massive gatherings of white sharks in the middle of the Pacific: these are just a few highlights from the Census of Marine Life (COML)'s fourth report.


Sharks in trouble after nations fail to create sustainable management programs

(11/06/2008) Sharks are disappearing from the ocean at startling rates: currently one-in-five of these famous marine predators are threatened with extinction. According to a report from the Australian Government and TRAFFIC—an organization that monitors wildlife trade both legal and illegal—the collapse of shark populations is being caused largely by rising demand for shark fin in Asia. The report shows that legal fishing for sharks has become nearly as detrimental as illegal, since few fisheries have management strategies concerned with sustainability.


U.S., Mexico, Canada pledge to save the vaquita from extinction

(10/30/2008) The United States, Mexico, and Canada will work together to conserve the vaquita, the world's smallest, and most endangered, species of cetacean.


One-third of global marine catch used as livestock feed

(10/30/2008) Despite continuous warnings of emptying oceans due to overfishing, a new report finds that one-third of the world’s total marine catch is not feeding humans, but livestock. The fish are ground-up into meal and fed to pigs, poultry, and even farm-raised fish.


U.S. pledges $40M toward coral reef conservation.

(10/22/2008) The U.S. government has pledged almost $40 million to protect biologically-rich coral reefs in Southeast Asia, according to the U.S. embassy in the Philippines.


Globalization drives a bubble in Indonesia's seaweed market

(10/21/2008) International demand and rampant speculation drove excess in Indonesia's emergent seaweed market, reports The Wall Street Journal.


Thousands of endangered sea turtles killed as fishing bycatch in Mexico

(10/15/2008) Thousands of endangered loggerhead sea turtles are being killed as bycatch in the Mexican fishing industry, reports a new study published in the journal Endangered Species Research.


2-degree rise in temperature may doom penguins colonies

(10/10/2008) More than half Antarctica's penguin colonies are at risk by a 2-degree global rise in temperatures, according to a report released by the environmental group WWF.


Argentina bans fishing, trawling in eco-rich area

(10/09/2008) The government of Argentina has banned commercial fishing along Burdwood Bank, an 1,800 square kilometer (694 square mile) submerged island off its southern coast, according to the Wildlife Conservation Society (WCS).


52% of amphibians, 35% of birds at risk from climate change

(10/08/2008) 52 percent of the amphibians, 35 percent of birds and 71 percent of reef-building coral are "particularly susceptible" to climate change, warns an IUCN report.


Mediterranean bluefin tuna originate in the Gulf of Mexico

(10/02/2008) Researchers have discovered a previously unknown migratory route for the northern bluefin tuna, proving for the first time that the species' Mediterranean and North American subpopulations interact. According to the paper published in Science the two groups meet as juveniles then return to their birthplace to spawn. For a critically-endangered species that is still heavily fished, the new finding has large conservation and management implications.


'Safe' CO2 level may destroy the fishing industry, wreck reefs

(09/23/2008) An atmospheric carbon dioxide concentration of 450 parts-per-million (ppm) — a target level deemed safe by the United Nations Framework Convention on Climate Change (UNFCCC) — would be devastating to marine ecosystems warn scientists writing in the journal Geophysical Research Letters.


100 new species of sharks and rays discovered in Australia

(09/19/2008) Scientists have described 100 new species of sharks and rays in the seas around Australia.


A solution to worldwide fishery collapse?

(09/18/2008) In November 2006 a study on global fisheries received a lot of attention: employing 53 years worth of fishery data, Boris Worm predicted that by 2048 the ocean would be empty of fish. Essentially there would be nothing left to catch. Already, Worm reported, fishing stocks had collapsed in 29 percent of the world's fisheries. Although scientists called for rapid and overhauling changes to fisheries, the fishing industry carried on business-as-usual. Now, two years later, a study in Science proposes to have found the solution to the global fishery-collapse.


Arctic sea ice falls to second lowest on record

(09/16/2008) Arctic sea ice retreated to the second lowest level on record but remains about 9 percent above the low set last September, reports the NASA and the National Snow and Ice Data Center in Boulder, Colorado.


Whaling Commission issues media blackout on discussions to lift whale killing ban

(09/11/2008) The survival of whales is perhaps the most successful conservation story of the 20th century. Since a moratorium on commercial hunting, some whale species have staged dramatic recoveries. In May it was announced that the humpback whale population has climbed from 1,500 to 20,000 individuals, resulting in it being "downlisted" from vulnerable to least concern, according to the IUCN's Red List. Others, like the blue whale, appear to have stable populations but recovery remains slow.


Study confirms strong link between CO2 and climate over 70,000 years

(09/11/2008) Analysis of ice core samples from Greenland show a strong correlation between atmospheric carbon dioxide levels and abrupt changes in climate, reports a paper published in Science.


NASA: Sea ice melt opens the Northwest and Northeast Passage

(09/09/2008) An image released by NASA shows that Arctic sea ice has retreated to the point where both the Northwest Passage around North America and the Northern Sea Route around Russia are open simultaneously. The occurrence marks the first time on record that both passages have been open.


Small-scale fisheries are "best hope" for sustainability in developing world

(09/08/2008) Fish stocks are declining globally. While the consumer in the industrial world has yet to feel the full impact of this decline, those in the developing world know it well. Local small-scale fishermen are catching less fish to feed growing populations. Jennifer Jacquet of the Sea Around Us Project believes the hope for sustainable seafood lies in these very fisheries.


Nobu offers critically-endangered species to sushi diners

(09/08/2008) Nobu, a pricey and trendy sushi restaurant with locations around the world, regularly serves critically-endangered Northern bluefin tuna to its clientele, reveals an investigation by the environmental group Greenpeace.


Obama talks science: ocean health, water scarcity, climate change, and more

(09/05/2008) Presidential nominee Barack Obama recently answered fourteen science-related questions for the organization Science Debate 2008. The questions covered a wide-variety of topics, including the importance of innovation, science and math education, energy policies, national security and biosecurity, genetics research, stem cells, space exploration, health, support for research and restoring scientific integrity in the Whitehouse. Below are brief descriptions of his answers on three topics: climate change, water scarcity, and the health of marine ecosystems. Republican presidential nominee John McCain has also been sent the same fourteen questions, so far he has not responded.


Sea level rise likely limited to 2-6 feet by 2100

(09/04/2008) Global sea level rise is unlikely to exceed 2 meters (6 1/2 feet) by the end of century argues a new study published in the journal Science.


Sea levels may rise 2-3 times faster than expected

(08/31/2008) Global sea level rise this century from a melting Greenland ice sheet may be two to three times greater than current estimates warn researchers writing in journal Nature Geoscience.


Sea ice extent falls to second lowest on record

(08/27/2008) Arctic sea ice extent presently stands at it second-lowest level on record and could set a new low in coming weeks, reports the National Snow and Ice Data Center (NSIDC).


Saving oceans from acidification requires addressing climate policy

(08/27/2008) Ocean acidification driven by rising carbon dioxide emissions is a great threat to marine ecosystems and needs be addressed through climate policy and conservation measures, said top marine scientists meeting in Hawaii.


DNA study reveals new 1,000-pound grouper species

(08/21/2008) DNA analysis has revealed that a 1,000-pound grouper found in both the Atlantic and Pacific Oceans is actually two different species.


The long-ignored ocean emergency and what can be done to address it

(08/18/2008) This year has been full of bad news regarding marine ecosystems: one-third of coral species threatened with extinction, dead-zones spread to 415 sites, half of U.S. reefs in fair or bad condition, increase in ocean acidification, tuna and shark populations collapsing, and only four percent of ocean considered pristine. Jeremy Jackson, director of the Scripps Center for Marine Biodiversity and Conservation at the University of California, San Diego, synthesizes such reports and others into a new paper, published in the journal Proceedings of the Naional Academy of Sciences, that boldly lays out the scope of the oceanic emergency and what urgently needs to be done.


Marine 'dead zones' double every decade

(08/14/2008) Dead zones have spread across the ocean at alarming rates. Currently 415 sites, usually along coastlines, have shown signs of seasonal to persistent hypoxia—a severe lack of oxygen. In a new essay in Science, researchers Robert Diaz and Rutger Rosenberg argue that marine dead zones have "become a major worldwide environmental problem". Marine dead zones now occupy a portion of the ocean equal to that of the United Kingdom and continue to grow, doubling every decade since the 1960s and showing no sign of abating.


How sustainable is your canned tuna? It depends on the retailer

(08/13/2008) To aid concerned tuna-lovers, Greenpeace has ranked eight of the top canned tuna retailers in order from most sustainable to least. Canned tuna from John West, the biggest retailer of tuna in the UK, proves to be the worst of the lot, whereas Salinburys is the most environmentally-friendly. In a press release Greenpeace said that Salinburys is "the only tinned tuna brand that is fished using sustainable methods".


Greenpeace drops boulders on sea floor to disrupt bottom trawling

(08/12/2008) Greenpeace dropped hundreds of tons of granite boulders on the sea floor in the German North Sea in order to stop bottom trawling in an area that is designated as a 'Special Area of Conservation' by the EU.


"Turtle carbon" could help protect rainforests and save endangered sea turtles

(08/12/2008) Using carbon credits to promote rainforest conservation could help protect endangered sea turtles in some parts of the world, argues a carbon finance expert.


Seals used for climate change research

(08/11/2008) Animals have aided humanity for millennia. We are used to considering animals like dogs, horses, cows, and lamas as utilitarian in a very direct way, but what about elephant seals?


NASA study shows global warming will diminish rainfall in East Africa, worsening hunger

(08/06/2008) A new NASA-backed study has found a link between a warming Indian Ocean and reduced rainfall in eastern and southern Africa. The results suggest that rising sea temperatures could exacerbate food problems in some of the continent's most famine-prone regions.


Ocean acidification may hurt reproduction in marine life

(07/30/2008) Ocean acidification due to rising carbon dioxide levels in the atmosphere may be putting the reproductive capabilities of some marine species at risk, reports a new study published in Current Biology by Swedish and Australian scientists.


Climate change will increase the erosion of coral reefs

(07/28/2008) Coral reefs are particularly susceptible to climate change. Warming waters have been shown to bleach coral, killing off symbiotic algae that provide them with sustenance, and often leading to the death of the coral itself. Much attention has been placed on bleaching coral, but now scientists have discovered an additional danger to coral reefs in a warming world: erosion.


Monster manta ray species discovered

(07/25/2008) Researchers have discovered a previously unknown species of manta ray. Previously there was believed to be only a single species of ray but genetic analysis now shows there are at least two, and possibly three, species.


How to replant a mangrove forest: local, low-cost initiatives prove most successful

(07/23/2008) Mangrove replanting and rehabilitation has become a widespread and important environmental initiative worldwide. Mangrove forests play key ecological roles, including sustaining fish populations and other wildlife, preventing erosion along coastlines, and acting as an overall carbon sink. Furthermore, mangroves have received attention lately for their role in providing an effective buffer against typhoons. In light of the many replanting initiatives now occurring, researchers J.H. Primavera and J.M.A. Esteban conducted a study of the overall effectiveness of different mangrove rehabilitation schemes. Their findings show that small, local, and generally cheaper initiatives have a higher success rate over large costly government and international programs.


Coral susceptibility to bleaching due to small differences in symbiotic relationship

(07/22/2008) Coral reefs are now considered the second most threatened group of animals in the world, with nearly one-third of corals listed as endangered (amphibians retain the dubious honor of being number one). Although corals face many threats, the greatest is bleaching caused by warming oceans due to climate change. However, some coral populations are more susceptible to bleaching than others, even including corals of the same species. New research has uncovered that the reason lies in small differences in the symbiotic relationship between corals and their symbionts, small marine animals and protozoa. Such differences, however miniscule, have a huge impact on the likelihood of a coral's ability to survive warming oceans.


Mangroves are key to healthy fisheries, finds study

(07/21/2008) Mangroves serve as a critical nursery for young marine life and therefore play an important role in the health of fisheries and the economic well-being of fishermen, report researchers writing in the early online edition of the Proceedings of the National Academy of Sciences.


Shell Oil funds "open source" geoengineering project to fight global warming

(07/21/2008) Shell Oil is funding a project that seeks to test the potential of adding lime to seawater as a cost-effective way to fight global warming by sequestering large amounts of carbon dioxide in the world's oceans, reports Chemistry & Industry magazine.


Moving species may be only way to save them from climate change

(07/17/2008) Desperate times call for desperate measures, according to a new paper in Science. conservation scientists from the US, the UK, and Australia are calling for the consideration of a highly controversial conservation technique: assisted migration. According to the policy piece, species would be relocated to sites "where they do not currently occur or have not been known to occur in recent history".


Marine no-take zones are succeeding beyond expectations

(07/16/2008) Two recent reports show that marine no-take zones, where fishing is completely prohibited, are helping to rejuvenate commercial species faster than expected.


Discovery of new leatherback migration route may help save species

(07/15/2008) Scientists have discovered a new migration route for the world's largest turtle, the leatherback. The route takes the 2,000-pound marine turtle from the Playa Grande beaches in Costa Rica to an area deep in the South Pacific.


U.S. dead zones may reach record levels this summer

(07/15/2008) "Dead zones" in the Gulf of Mexico and Chesapeake Bay will likely expand to record levels this summer due to rising rising agricultural runoff in part triggered by large-scale flooding in the Midwest, according to a forecast by a researcher from the University of Michigan.


Madagascar villagers vote to protect sea turtles, see first hatchlings

(07/15/2008) The first hatching of Green Turtles recorded as a direct result of efforts to protect the species in southwest Madagascar has been witnessed by marine conservationists working for British charity, Blue Ventures conservation.


Oceans hold vast potential for wind power

(07/09/2008) The North Pacific, Tasmania, New Zealand, Tierra del Fuego in South America, and the mid-latitudes of the Atlantic and Pacific oceans are potential locations for wind power generation, according to new satellite data from NASA.



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