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News articles on oceans
Mongabay.com news articles on oceans in blog format. Updated regularly.
New species of ghostshark discovered off California's coast
(09/22/2009) The discovery of Eastern Pacific black ghostshark Hydrolagus melanophasma is notable for a number of reasons. It is the first new species of cartilaginous fish—i.e fish whose skeletons are made entirely of cartilage, such as sharks, rays, and skate—to be described in California water since 1947. It is also a representative of an ancient and little-known group of fish.
Whale skeleton reveals species unknown to science
(09/22/2009) The importance of a whale to the oceanic ecosystem does not end with its life. After dying, a whale's body sinks to the bottom of the ocean and becomes food for many species, some of whom specialize on feeding on these corpses.
Photos: new deep sea species discovered off the Canary Islands
(09/21/2009) Owned by Spain, but located just off the northwest coast of Africa, the Canary Islands sport a wide variety of marine life, including five species of marine turtles, ten species of sharks and rays, and innumerable fish and invertebrates. However, a new expedition has gone beyond the known, sending a robot to depths of 500 meters to discover the secrets of the Canary Island's deep sea.
On the edge of extinction, Fiji petrels observed at sea for the first time
(09/15/2009) The Critically Endangered Fiji petrel has been observed at sea for the first time by BirdLife International and NatureFiji-MareqetiViti. First recorded in 1855 from one specimen found on Gau Island, Fiji, the rare seabird disappeared from scientific view for 130 years. Beginning in 1984 a handful of 'grounded' Fiji petrels Pseudobulweria macgillivrayi were found after landing on village roofs in Gau, but this is the first observation of the bird in its element: at sea.
Huge demand for omega-3 fatty acids depleting oceans worldwide for aquaculture
(09/09/2009) The ever-growing demand for fish and fish oil due to their omega-3 fatty acids has led to exponential growth in the aquaculture industry—and depletion of the world's oceans. While aquaculture is farmed fish, the fish are fed with wild marine species.
Plastic pollution in oceans inspires international event
(09/03/2009) For the past decade, an annual volunteer drive involving thousands of divers from all over the world has taken place in an effort to lessen the plastic content of the ocean. This year's International Cleanup Day is scheduled for September 19th and registration is open to certified divers and other volunteers who would like to do their part to save a choking ocean.
No killing yet as season begins for dolphin slaughter made famous by The Cove
(09/02/2009) Due to the new documentary The Cove, the town of Taiji, Japan is suddenly famous, or perhaps more aptly, infamous. Winner of the documentary award at the Sundance Film Festival, the film uncovers a cove in Taiji where over two thousand dolphins are slaughtered every year due to the billion dollar dolphin entertainment industry. Their dolphin's meat is then labeled as fish and given to children for school lunches, even though as top level predators the meat is heavily tainted with mercury.
Political heat rising on climate change, but does the United States feel it?
(09/02/2009) The UN Summit on Climate Change isn’t for three months, yet the political temperature has been rising steadily over the summer. The heat is especially focused on the three big players at the summit: China, India, and the United States.
Oil spill off Australia potential 'disaster' for marine wildlife
(08/30/2009) Oil is leaking from an offshore drilling rig in the Timor Sea near Australia's Northwest coast. Authorities say it will be weeks before the leak is plugged: they are awaiting the arrival of a drilling rig from Singapore to plug the leak.
Plastic Vortexes Leaching Chemicals into World's Oceans
(08/20/2009) While scientists have acknowledged the existence of billions of pounds of plastic containers, Styrofoam, and similar waste have created massive oceanic trash vortexes (floating islands of garbage), little is known of the effects of the dissolution of these materials into the water.
Hardly indestructible, plastics begin decomposing in ocean within a year, spreading harmful chemicals
(08/20/2009) Scientists had assumed that plastics were basically indestructible. While floating plastic in the ocean was dangerous to particular species of marine life which consumed them or got snared by them, the scientists thought that the threat didn’t extend beyond this. However, a new study shows that plastic in the ocean may be quite insidious. Researchers found that so-called indestructible plastics actually decompose in the ocean, releasing potentially toxic substances throughout the seas.
Newly discovered deep sea worms throw bioluminescent 'bombs'
(08/20/2009) Researchers from Scripps Institution of Oceanography at UC San Diego have announced in Science the discovery of seven new species of deep sea worms, five of which drop orb-like parts of their body which cause a brilliant green display of bioluminescence. For this reason researchers have nicknamed them the ‘green bombers’. The worms are not just new species, but a clade of animals entirely unknown to science until now.
Record global ocean temperature in July
(08/19/2009) The world's ocean surface temperature was the warmest on record for July, breaking the previous record set in 1998, reports NOAA's National Climatic Data Center. At 62.56°F (16.99°C), ocean temperatures were 1.06°F (0.59°C) above the 20th century average.
Biofuel company eyes dead zone in the Gulf of Mexico for creating fish-powered fuel
(08/18/2009) 'Dead zones' in the ocean are called such for a reason. Every year agricultural run-off, especially fertilizer, floods the oceans with an abundance of nutrients leading to algae blooms, i.e. massive explosions of phytoplankton. The demise of these blooms, and the rise of bacteria feeding on them, eventually starves the entire area of oxygen creating a 'dead zone' where the vast majority marine life can't survive. Considered by most to be an environmental catastrophe, a new company is looking at dead zones in a different light: fuel and profit.
Loss of Great Barrier Reef due to global warming would cost Australia $37.7 billion
(08/12/2009) A recent study reports that the loss of Australia’s Great Barrier Reef due to climate change poses a catastrophe not just for marine life, but would cost $37.7 billion during the next century.
Greenpeace drops boulders in Swedish waters to protect marine life from bottom trawling
(08/10/2009) Activists with Greenpeace have begun placing massive granite rocks in Swedish waters to prevent fishing boats from bottom trawling in sensitive areas.
Increasing pollution in US beaches
(07/31/2009) A recent water quality assessment by the Natural Resources Defense Council cites that the levels of ocean pollution required more than 20,000 mandatory closing and advisory days at beaches across the United States this year. Pollution and contamination levels have not been diminishing, and this was the fourth consecutive year for beach closures to reach record numbers.
Global fisheries begin to show signs of recovery where management is strong
(07/30/2009) New research reveals hopeful signs that overfished marine ecosystems can recover provided adequate protections. The two-year study, publish in the journal Science, found that efforts to reduce overfishing are beginning to succeed in five of the ten large marine ecosystems examined, suggesting that "sound management can contribute to the rebuilding of fisheries."
Extinction debt can last millions of years
(07/29/2009) Extinction can be set in motion millions of years before a species' actual demise, suggesting that present-day drivers of habitat destruction and degradation may have already doomed many species to eventual extinction, report researchers writing in Proceedings of the Royal Society B online.
Global ocean temperatures at warmest level since 1880
(07/21/2009) Global ocean temperatures rose to the warmest on record, according to data released last week by the National Oceanic and Atmospheric Administration (NOAA). The combined average global land and ocean surface temperature for June was second-warmest since global recording-keeping began in 1880. NOAA also reported a return of el Niño, raising the prospect of dryness—and risk of forest fires—in Southeast Asia.
20-foot-long washes up on New York beach
(07/15/2009) A 20-foot-long, 5,000 pound basking shark washed up on a Long Island beach yesterday, reports CNN.
Protection of land crabs critical to the conservation of coastal tropical forests
(07/13/2009) The impact of land crabs on the near-ocean forests in which they live has long been overlooked, with emphasis placed instead on water levels, salinity, and other abiotic influences. However, a new research synthesis published in Biological Reviews shows that land crab influence is among the most important factors affecting tropical forest growth along coasts, on islands, and in mangroves.
NASA reveals dramatic thinning of Arctic sea ice
(07/07/2009) Arctic sea ice thinned dramatically between the winters of 2004 and 2008, with thin seasonal ice replacing thick older ice as the dominant type of sea ice for the first time on record, report NASA researchers. Scientists from NASA and the University of Washington used observations from NASA's Ice, Cloud and land Elevation Satellite (ICESat) to make the first Arctic Ocean basin-wide estimate of the thickness and volume of sea ice cover. The researchers found that overall Arctic sea ice thinned about 17.8 centimeters (7 inches) a year, for a total of 67 cm (2.2 feet) over the four winters from 2004 to 2008. The total area covered by thick older ice that survives one or more summers ("multi-year ice") shrank 42 percent or 1.54 million square kilometers (595,000 square miles), leaving thinner first-year ice ("seasonal ice") as the dominant type of ice in the region.
Did fish poisoning drive Polynesian colonization of the Pacific?
(07/07/2009) The reasons behind the colonization of the Pacific islands have long been sources of controversy and fascination. Now a new study looks into toxic fish poisoning as a possible migration catalyst. Between AD 1000 and 1450, Polynesian colonization of the South Pacific flourished. The voyages that were undertaken in the discovery of these new lands were very dangerous and the people who conducted them undoubtedly had good reasons to do so. Researchers from the Florida Institute of Technology have performed research which shows that toxic ciguatera fish poisoning would provide sufficient impetus for such risky voyages.
Coastal seagrass disappearing as quickly as coral reefs and rainforests
(06/30/2009) Findings from the first comprehensive global survey of coastal seagrass ecosystems are nothing to cheer about.
Fifty-eight percent of seagrass meadows are declining, according to an international team of scientists who compiled data from 215 studies and 1,800 observations of seagrass habitat beginning in 1879. Since that year, 29 percent of seagrass ecosystems have vanished entirely.
Over 30 percent of open ocean sharks and rays face extinction
(06/25/2009) The first global study of open ocean (pelagic) sharks and rays found that 32 percent of the species are threatened with extinction largely due to overfishing and bycatch, making pelagic sharks and rays more threatened than birds (12 percent), mammals (20 percent), and even amphibians (31 percent), which are considered to be undergoing an extinction crisis. The situation worsens when only sharks taken in high-seas fisheries are considered: 52 percent of these species are threatened.
What is the crop productivity and environmental impact of too much or too little fertilizer?
(06/18/2009) While the use of synthetic fertilizer has greatly increased agricultural production globally—helping to feed a global population that is not slowing down—it has brought with it high environmental costs. Fertilizer runoff has polluted many coastal regions creating ‘dead zones’ where the ocean is starved of oxygen by the influx of nitrogen. Synthetic fertilizers have also polluted the air with ammonia, and sent emissions of nitrous oxide into the atmosphere, contributing to global warming.
New report predicts dire consequences for every U.S. region from global warming
(06/17/2009) Government officials and scientists released a 196 page report detailing the impact of global warming on the U.S. yesterday. The study, commissioned in 2007 during the Bush Administration, found that every region of the U.S. faces large-scale consequences due to climate change, including higher temperatures, increased droughts, heavier rainfall, more severe weather, water shortages, rising sea levels, ecosystem stresses, loss of biodiversity, and economic impacts.
Will jellyfish take over the world?
(06/16/2009) It could be a plot of a (bad) science-fiction film: a man-made disaster creates spawns of millions upon millions of jellyfish which rapidly take over the ocean. Humans, starving for mahi-mahi and Chilean seabass, turn to jellyfish, which becomes the new tuna (after the tuna fishery has collapsed, of course). Fish sticks become jelly-sticks, and fish-and-chips becomes jelly-and-chips. The sci-fi film could end with the ominous image of a jellyfish evolving terrestrial limbs and pulling itself onto land—readying itself for a new conquest.
UN calls for global ban on plastic bags to save oceans
(06/09/2009) The UN’s top environmental official called for a global ban on plastic bags yesterday. "Single use plastic bags which choke marine life, should be banned or phased out rapidly everywhere. There is simply zero justification for manufacturing them anymore, anywhere," said Achim Steiner, executive director of the U.N. Environment Program.
10 ways you can help protect oceans
(06/08/2009) Monday June 8th, 2009 is World Ocean Day, which the United Nations launched to raise awareness about oceans and coastal ecosystems. Roughly 80 percent of life on Earth depends on oceans and coasts, while more than a third of the humanity lives in coastal areas or on small islands. Oceans provide mankind with more than $21 trillion annually in goods and services, including food, energy, transportation, and recreation. But oceans and coastal ecosystems are increasingly under threat from pollution, unsustainable fishing practices, destruction of habitats, and the effects of increased carbon dioxide emissions (warmer temperatures and ocean acidification). In recognition of the importance of maintaining healthy marine ecosystems, The Nature Conservancy is offering a set of ten tips to help to protect these resources for future generations.
Marine scientist calls for abstaining from seafood to save oceans
(06/08/2009) In April marine scientist Jennifer Jacquet made the case on her blog Guilty Planet that people should abstain from eating seafood to help save life in the ocean. With fish populations collapsing worldwide and scientists sounding warnings that ocean ecosystems—as edible resources—have only decades left, it is perhaps surprising that Jacquet’s call to abstain from consuming seafood is a lone voice in the wilderness, but thus far few have called for seafood lovers to abstain.
Polluted, degraded ecosystems can recover in less than a lifetime
(05/31/2009) Restoration efforts can return polluted or degraded landscapes to previous states in less than a lifetime, according to study Yale School of Forestry and Environmental Studies. The study rebuts a common assumption that ecosystem recovery takes centuries, even millennia.
Permian mass extinction caused by giant volcanic eruption
(05/28/2009) Two hundred and sixty million years ago the Earth experienced its worst mass extinction: 95 percent of marine life and 70 percent of terrestrial life vanished. Long a subject of dispute, researchers from the University of Leeds believe they have confirmed the reason behind the so-called Permian extinction.
Sushi restaurant, Nobu, warns patrons not to eat bluefin tuna, but serves it anyway
(05/27/2009) Last year, Nobu was caught red-handed serving critically-endangered bluefin tuna to patrons, even after servers claimed its tuna was not bluefin. Now after heavy criticism, the trendy restaurant, owned by Robert DeNiro and popular with celebrities, has finally taken action.
Starfish may benefit from global warming
(05/25/2009) Climate change is expected to cause widespread disruptions to ecosystems and their resident species. Some creatures will go extinct, others will expand their ranges and thrive. A new study identifies starfish as one of the likely winners from rising ocean temperatures and carbon dioxide concentrations.
85 percent of oyster reefs gone, threatening coastal environments and a favored delicacy
(05/21/2009) The first global report on the state of shellfish was released today at the International Marine Conservation Congress in Washington, DC. Painting a dire picture for shellfish worldwide, the report found that 85 percent of oyster reefs have vanished.
Six nations pledge to protect the Coral Triangle
(05/19/2009) Last Friday, six nations signed a pledge launching the Coral Triangle Initiative on Coral Reefs, Fisheries and Food Security (CTI-CFF). Indonesia, the Philippines, Timor Leste, Papua New Guinea, Solomon Islands, and Malaysia each agreed to protect the Coral Triangle, a region spanning 1.6 billion acres, half the size of the US.
Scientists find world’s largest leatherback sea turtle population in Gabon
(05/17/2009) Scientists have found the world’s largest population of nesting leatherback sea turtles. On the beaches of Gabon in West Africa land and air surveys estimated the small country’s leatherback population to be between 15,730 and 41,373 individual females. The findings are published in Biological Conservation. Leatherback sea turtles are currently considered critically endangered by the IUCN, however these new numbers may cause marine biologists to reconsider that ranking.
Tropical storms may create seeds for reef restoration
(05/16/2009) Tropical reefs are easy to destroy and difficult to fix. It is estimated that global warming, unsustainable fishing, and pollution have already destroyed 20% of the world’s coral reefs. Recently, Virginia Garrison and Greg Ward of the United States Geological Survey (USGS) demonstrated how coral fragments that have broken loose during storms can be used to rebuild reefs. They reported their results in the October issue of Biological Conservation.
Blue whales return to migration pattern used before commercial whaling
(05/13/2009) The blue whale may be returning to a migration route that it abandoned during commercial whaling. Researchers have discovered whales migrating from California to the coastlines of British Columbia and the Gulf of Alaska for the first time since 1965. Fifteen different cases of whales have been recorded in the north Pacific; four of the whales were individuals who had been viewed off the coast of California, as well.
Turkey ignores bluefin tuna quotas, further imperiling critically-endangered species
(05/12/2009) A few weeks into the bluefin tuna fishing season and Turkey has decided to go it alone. Breaking international agreements, the Turkish government has announced that it will ignore agreed-upon bluefin tuna quotas. The news is not good for the survival of the critically-endangered fish species, since Turkey operates the largest Mediterranean fleet for bluefin tuna.
Fish operated on at ZSL London Zoo: Photo
(05/11/2009) A female prickly leatherjacket triggerfish Chaetodermis penicilligerus underwent an operation to remove a benign tumor from her tail at the Zoological Society of London (ZSL) Zoo.
Secret movements of the basking shark uncovered
(05/07/2009) Researchers with the Massachusetts Mariner Fisheries have uncovered the secret life of the world’s second largest fish, known for its cavernous mouth. The basking shark, which measures over 10 meters and weighs as much as seven tons, has long baffled scientists by disappearing from view half of every year. A new study from Current Biology found that the basking shark spends this time deep in the Atlantic’s tropical waters.
Coral reef loss in Caribbean leads to ongoing fish declines
(04/30/2009) Analyzing 48 surveys of Caribbean fish populations over fifty years, from 1955-2007, a new meta-study has found that fish populations in the famously clear waters began to drop in the mid-90s, leading to a consistent decline that hasn’t stopped. The study published in Current Biology discovered a region-wide decline of about 3-6 percent per year in three out of six trophic groups of fish, i.e. groupings of species categorized by their place on the food chain. The declines didn’t show major differences between species targeted by fishermen and those that are not, implying that overfishing isn’t the only cause of the decline in the Caribbean.
New protections for coral reefs and dwindling fish species in Belize
(04/27/2009) Coral reefs in Belize, considered to be some of the most pristine in the west, have secured additional protections. Rene Montero, the Minister of Agriculture and Fisheries, signed a set of new laws this month to protect Belize’s coral reefs and the fish that inhabit them. The additional laws protect increasingly overfished species, ban spearfishing in marine reserves, and create no-take zones, according to a press release from the Wildlife Conservation Society (WCS).
River systems worldwide are losing water due to global warming
(04/22/2009) Many rivers around the world are losing water due to global climate change, according to a new study from the American Meteorological Society's Journal of Climate. Large populations depend on some of the rivers for everything from agriculture to clean drinking resources, including the Yellow River, the Ganges, the Niger, and the Colorado, which have all shown significant declines.
Extremophiles discovered below Antarctic glacier are remnants of marine life
(04/16/2009) Living in isolation for millions of years, cut off from sunlight and oxygen, surviving by breathing iron beneath an Antarctic glacier—such are the conditions of newly-discovered microbes living under Taylor Glacier in Antarctica’s desert-waste, the McMurdo Dry Valleys.
Study confirms that sonar can cause deafness in dolphins
(04/08/2009) A new study in Biology Lettersconfirms what marine biologists have long suspected: loud sonar can cause temporary deafness in dolphins, possibly explaining some mass strandings. The study, using a captive dolphin in a controlled experiment, found that sonar at high prolonged levels could even lead to slight behavioral changes.
Whale sharks threatened by interbreeding
(04/08/2009) The world's largest living fish, the whale shark, is threatened by interbreeding, according to a new study in PLoS ONE. Comparing the DNA of 68 individual whale sharks from eleven locations across the globe, geneticists found that the whale sharks had little genetic variation between the populations.
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