Slipped Through the Nets. EU misses target by more than 30 years.

ScienceDaily — At the Development Summit in Johannesburg in 2002, the European countries agreed to rebuild their fish stocks to levels that can produce the maximum sustainable yield, no later than 2015. According to scientists of the Excellence Cluster "Future Ocean," that goal is already out of reach: Of 54 analysed stocks, only saithe, western horse mackerel and Baltic sprat have a sufficiently large stock size and are fished at a sustainable rate. The state of 12 stocks, including North Sea cod, plaice and halibut, is so bad that they can not recover sufficiently until 2015, even if all fishing was halted. Other stocks could reach the target if fishing pressure was reduced substantially, but that has not happened so far.

These results were published by Dr. Rainer Froese, Leibniz Institute of Marine Sciences (IFM-GEOMAR) und Prof. Dr. Alexander Proelß, Walter-Schücking-Institute of International Law of the University of Kiel, in the journal Fish and Fisheries. The German scientists, both members of the interdisciplinary Excellence Cluster "Future Ocean," point out that the continuous overfishing of European stocks constitutes a breach of the precautionary principle, which is a binding principle of Community law.

"The precautionary principle is a binding legal principle for the organs of the European Commission and for the Council of Ministers. The current practice of continuous overfishing violates international law as well as Community law," says Prof. Dr. Alexander Proelß, expert of international law at the Walter-Schücking-Institute.

The obligation to manage fish stocks such that they can produce the maximum sustainable yield is part of the Law of the Sea (UNCLOS) of 1982, which entered into force in 1994. In the "Johannesburg Plan of Implementation" (2002), the European Union as well as Norway, Russia and Iceland, agreed to rebuild their fish stocks to the level that can produce the maximum sustainable yield, no later than 2015. "Until now, the provisions of the Law of the Sea have not been introduced into national law, and the plan of implementation had no visible impact on European fisheries management," says Proelß.

On the contrary: the fishing quotas for 2010 decreed by the Council of Ministers again exceed by far the catches that would allow the rebuilding of the stocks. "If this practice continues, Europe will miss by more than 30 years the goal that it has propagated," says Dr. Rainer Froese, fisheries biologist at the Kiel Leibniz Institute of Marine Sciences (IFM-GEOMAR).

Yet, catches from sustainably managed stocks could be substantially higher. "Our analysis suggests that landings could be 79% higher if stocks had been managed according to the international agreements," says Froese. "However, in European waters stocks are intentionally managed such that they stay close to the brink of collapse. This policy makes no sense from an ecological or economic point of view."

Source: http://www.sciencedaily.com/releases/2010/01/100121155224.htm

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About Oceanic Defense
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Slipped Through the Net: Europe Misses by More Than 30 Years the International Goal of Rebuilding Its Fish Stocks

ScienceDaily — At the Development Summit in Johannesburg in 2002, the European countries agreed to rebuild their fish stocks to levels that can produce the maximum sustainable yield, no later than 2015. According to scientists of the Excellence Cluster "Future Ocean," that goal is already out of reach: Of 54 analysed stocks, only saithe, western horse mackerel and Baltic sprat have a sufficiently large stock size and are fished at a sustainable rate. The state of 12 stocks, including North Sea cod, plaice and halibut, is so bad that they can not recover sufficiently until 2015, even if all fishing was halted. Other stocks could reach the target if fishing pressure was reduced substantially, but that has not happened so far.

These results were published by Dr. Rainer Froese, Leibniz Institute of Marine Sciences (IFM-GEOMAR) und Prof. Dr. Alexander Proelß, Walter-Schücking-Institute of International Law of the University of Kiel, in the journal Fish and Fisheries. The German scientists, both members of the interdisciplinary Excellence Cluster "Future Ocean," point out that the continuous overfishing of European stocks constitutes a breach of the precautionary principle, which is a binding principle of Community law.

"The precautionary principle is a binding legal principle for the organs of the European Commission and for the Council of Ministers. The current practice of continuous overfishing violates international law as well as Community law," says Prof. Dr. Alexander Proelß, expert of international law at the Walter-Schücking-Institute.

The obligation to manage fish stocks such that they can produce the maximum sustainable yield is part of the Law of the Sea (UNCLOS) of 1982, which entered into force in 1994. In the "Johannesburg Plan of Implementation" (2002), the European Union as well as Norway, Russia and Iceland, agreed to rebuild their fish stocks to the level that can produce the maximum sustainable yield, no later than 2015. "Until now, the provisions of the Law of the Sea have not been introduced into national law, and the plan of implementation had no visible impact on European fisheries management," says Proelß.

On the contrary: the fishing quotas for 2010 decreed by the Council of Ministers again exceed by far the catches that would allow the rebuilding of the stocks. "If this practice continues, Europe will miss by more than 30 years the goal that it has propagated," says Dr. Rainer Froese, fisheries biologist at the Kiel Leibniz Institute of Marine Sciences (IFM-GEOMAR).

Yet, catches from sustainably managed stocks could be substantially higher. "Our analysis suggests that landings could be 79% higher if stocks had been managed according to the international agreements," says Froese. "However, in European waters stocks are intentionally managed such that they stay close to the brink of collapse. This policy makes no sense from an ecological or economic point of view."

Source: http://www.sciencedaily.com/releases/2010/01/100121155224.htm

---

About Oceanic Defense
We are an international non-profit organization with members in over 60 countries, spanning 6 continents with 1 mission; healthy aquatic ecosystems free from human abuse and neglect. Oceanic Defense teaches people to protect our oceans by acting responsibly as consumers and by making smart decisions in our daily lives. Whether we are buying groceries, commuting to work, planning a vacation or advocating within our own communities; each action we take or decision we make either helps or hurts our oceans. We empower people to be part of the solution rather than part of the problem and work together to protect our blue planet.

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Mercurial Tuna: Study Explores Sources of Mercury in Ocean Fish

ScienceDaily— With concern over mercury contamination of tuna on the rise and growing information about the health effects of eating contaminated fish, scientists would like to know exactly where the pollutant is coming from and how it's getting into open-ocean fish species.

A new study published in the journal Environmental Science & Technology uses chemical signatures of nitrogen, carbon and mercury to get at the question. The work also paves the way to new means of tracking sources of mercury poisoning in people.

The study, by researchers at the University of Michigan, Harvard School of Public Health, the Louisiana Universities Marine Consortium and the National Institute of Nutrition and Seafood Research in Norway, appears in the journal's March 1, 2010 issue.

Mercury is a naturally occurring element, but some 2,000 tons of it enter the global environment each year from human-generated sources such as coal-burning power plants, incinerators and chlorine-producing plants. Deposited onto land or into water, mercury is picked up by microorganisms, which convert some of it to methylmercury, a highly toxic form that builds up in fish and the animals -- and people -- that eat them.

The primary way people in the United States are exposed to methylmercury is by eating fish and shellfish. Health effects include damage to the central nervous system, heart and immune system, and the developing brains of young and unborn children are especially vulnerable.

In the current study, the researchers wanted to know if tuna and other open-ocean fish pick up methylmercury by eating contaminated fish that live closer to shore or by some other means. They studied 11 species of fish, including red snapper, speckled trout, Spanish mackerel and two species of tuna. Seven of the species studied live in the shallow, coastal waters of the Gulf of Mexico; the two tuna species live far out in the ocean and are highly migratory; the remaining two species spend parts of their lives in both habitats.

It's no mystery how the coastal fish acquire methylmercury, said Joel Blum, who is the John D. MacArthur Professor of Geological Sciences at U-M. "We know that there's a lot of mercury pollution in the coastal zone. A large amount of mercury comes down the Mississippi River, and there's also air pollution and deposition of mercury from the highly industrialized coastal Gulf region." In this environment, methylation occurs in the low-oxygen conditions of the lower water column and sediments, and the methylmercury wends its way up the food web, becoming more concentrated at each step along the way.

"It's much less clear how methylmercury gets into open-ocean fish species, some of which don't come anywhere close to shore but can still have very high levels," said the study's lead author, David Senn, formerly of the Harvard School of Public Health, and now a senior researcher at the Swiss Federal Institute of Aquatic Science and Technology. Scientists have proposed three possibilities.

One is that open-ocean fish visit coastal areas to feed, picking up methylmercury from the coastal food web. Another possibility is that small organisms that acquire methylmercury in coastal regions are washed out to sea, where they enter the open-ocean food web. In the third scenario, mercury is directly deposited into the open ocean, where it undergoes methylation.

By looking at three chemical signatures in the fish -- nitrogen isotopes, carbon isotopes and mercury isotopes -- Senn, Blum and colleagues learned that coastal fish and open-ocean fish are feeding from two separate food webs.

"That rules out the first explanation, that these tuna were getting their methylmercury by feeding off coastal fish," Senn said.

"We think it's unlikely that the mercury is being methylated in coastal sediments and then washed out to the open ocean, so the most likely alternative is that there is deposition and methylation of mercury in the open ocean," Blum said. The finding runs counter to the long-held view that the open ocean is too oxygen-rich to support methylation, but it is consistent with recent studies suggesting more methylation may be occurring in that environment than was previously thought.

"It turns out there are probably low-oxygen microenvironments on tiny particles of organic matter, where methylation may be able to occur," Blum said.

One of the biggest differences the researchers found between coastal and open-ocean fish was in their mercury "fingerprint." The fingerprint is the result of a natural phenomenon called isotopic fractionation, in which different isotopes of mercury react to form new compounds at slightly different rates. In one type of isotopic fractionation, mass-dependent fractionation (MDF), the differing rates depend on the masses of the isotopes. In mass-independent fractionation (MIF), the behavior of the isotopes depends not on their absolute masses but on whether their masses are odd or even.

The researchers found that open-ocean fish have a much stronger MIF fingerprint than do coastal fish, a discovery that opens the door to new ways of analyzing human exposure to mercury.

"We can do an isotopic analysis of the mercury in your hair, and by looking at this mass-independent signal, tell you how much of the mercury is coming from inorganic sources, such as exposure to mercury gas or amalgams in your dental fillings, versus how much is coming from the fish that you eat," Blum said. "We think this could become a widespread technique for identifying sources of mercury contamination."

Senn and Blum's coauthors are Edward Chesney of the Louisiana Universities Marine Consortium; Michael Bank and James Shine of Harvard School of Public Health; and Amund Maage of Norway's National Institute of Nutrition and Seafood Research.

The research was funded by a National Oceanic and Atmospheric Administration grant to Harvard School of Public Health and by the University of Michigan.

Source: http://www.sciencedaily.com/releases/2010/03/100302111918.htm

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Sustainable Fisheries Needed for Global Food Security

Fish at a fish market. Seafood is a significant source of protein for nearly 3 billion people and is the planet's most highly traded food commodity, contributing to the livelihoods of more than 560 million people. But a lack of coordinated policy threatens global seafood supplies. (Credit: iStockphoto/Thaddeus Robertson)

ScienceDaily — Increased aid from developed countries, earmarked specifically for sustainable seafood infrastructure in developing countries, could improve global food security, according to a policy paper by an international working group of 20 economists, marine scientists and seafood experts in the Feb. 12 issue of Science.

Seafood is a significant source of protein for nearly 3 billion people and is the planet's most highly traded food commodity, contributing to the livelihoods of more than 560 million people. But a lack of coordinated policy threatens global seafood supplies.

To help safeguard future supply, "the price of seafood has to reflect the cost of maintaining ecosystem health in the countries that capture or farm most of it," says Martin D. Smith, lead author of the paper and associate professor of environmental economics at Duke University's Nicholas School of the Environment. "Many imports are coming from developing countries that are not necessarily well-positioned to manage their resources sustainably."

"In an ideal world, each country governs its own resources well and the seafood trade contributes to worldwide economic growth and food security," Smith says. "But that's not the world we live in right now." Developing countries may produce more seafood than they can consume, exporting it and using the earnings to purchase other foods, goods or services.

In their Science article, Smith and his co-authors examine the complex environmental, political and economic factors that jeopardize global seafood supplies and livelihoods.

"Issues of resource ownership and governance are at the top of the list," says Cathy A. Roheim of the University of Rhode Island. No one owns fish stocks or has sole control over what their catch limits should be, or what type of gear or practices can be used to catch them. This has pushed many stocks beyond maximum sustainable yields, and has led to the current precarious role of fisheries in food security.

Concurrently, "aquaculture (farming seafood) has great promise for enhancing food security but is also threatened when regulations fail to protect the supporting ecosystems," says Smith.

Smith, Roheim and their colleagues weigh the pros and cons of three policy options to sustain seafood production.

Trade policies such as import bans and tariffs could be used to punish countries that fail to meet sustainability standards, "but these are rather blunt instruments," Smith says. "In the short run, you may end up hurting people who are the most vulnerable."

Private incentives, such as ecolabeling, that raise the price of seafood to help pay for sustainable practices, are another option. But it's not clear from existing studies if enough consumers will voluntarily pay more for seafood. And raising the price of high-valued products such as shrimp or tuna, which are mostly exported to developed countries, could backfire. Consumers might then seek out less expensive alternatives that people in poor, developing countries depend on. This may raise prices of low-valued products and put products with high nutritional value out of reach of the poorest of the poor.

A third option -- allocating more foreign aid for sustainable infrastructure in developing countries -- provides clear advantages, Smith believes. By specifically earmarking aid for things like sustainable fishing gear, improved management, sustainable aquaculture facilities, or systems to verify sustainability compliance, developed countries will foster food security and ecosystem health, and strengthen seafood trade, without causing short-term hardships to consumers or producers.

"We're not suggesting that foreign aid for sustainability should replace other aid that contributes to food security," Smith notes. "We're just saying this is an option that is often overlooked."

The Duke-led working group is funded by the National Center for Ecological Analysis and Synthesis. Larry Crowder, director of the Nicholas School's Center for Marine Conservation, and Mary Turnipseed, a PhD student at the school, co-founded and co-direct the group with Smith.

Other members come from National Center for Ecological Analysis and Synthesis; University of Rhode Island, University of California-Santa Barbara; University of Stavanger, Norway; Hawaii Institute of Marine Biology; University of Georgia; University of Arizona; Stanford University; World Wildlife Fund; Southwest Fisheries Science Center; Memorial University and Dalhousie University, Canada; Norwegian University of Life Sciences; Whole Foods Market; and Comunidad y Biodiversidad A.C., Mexico.

Source: http://www.sciencedaily.com/releases/2010/02/100211141134.htm

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About Oceanic Defense
We are an international non-profit organization with members in over 60 countries, spanning 6 continents with 1 mission; healthy aquatic ecosystems free from human abuse and neglect. Oceanic Defense teaches people to protect our oceans by acting responsibly as consumers and by making smart decisions in our daily lives. Whether we are buying groceries, commuting to work, planning a vacation or advocating within our own communities; each action we take or decision we make either helps or hurts our oceans. We empower people to be part of the solution rather than part of the problem and work together to protect our blue planet.

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Commercial Fishing Endangers Dolphin Populations, New Study Finds

ScienceDaily — Extensive commercial fishing endangers dolphin populations in the Mediterranean. This has been shown in a new study carried out at the University of Haifa's Department of Maritime Civilizations. "Unfortunately, we turn our backs to the sea and do not give much consideration to our marine neighbors," states researcher Dr. Aviad Scheinin.

The study, which was supervised by Prof. Ehud Spanier and Dr. Dan Kerem, examined the competition between the two top predators along the Mediterranean coast of Israel: the Common Bottlenose Dolphin (Tursiops truncatus) and bottom trawlers. (Trawling is the principal type of commercial fishing in Israel and involves dragging a large fishing net through the water, close to the sea floor, from the back of a boat.) These two predators off the coast of Israel trap similar types of fish near the sea floor, so the researchers decided to examine the nature of the competition between the two.

Commercial trawling in the Mediterranean off the coast of Israel targets codfish, red mullet and sole, three commercial and sought-after types of fish. The Department of Fisheries in Israel's Ministry of Agriculture has data showing that over the years the amount of fish from the sea floor looted by Israel's commercial trawling is larger than the amount of fish that nature provides, indicating that the sea floor fish population dropped between the years 1949 and 2006.

Would this decline in fish supply necessarily cause direct harm to the dolphins, seeing as their diet might also include other types of fish? In order to verify this, the researcher examined the contents of the stomachs of 26 dolphins that died and landed on the beach, or that had been caught by mistake. He also examined the behavior of living dolphins by carrying out 232 marine surveys over more than 3,000 km. along the central coast of Israel. The dolphins' stomachs contained mainly non-commercialized fish, suggesting that they perhaps do not compete directly with the commercial trawlers, and that the commercial fishing does not directly affect the dolphins' nutrition.

The living dolphins' behavior, on the other hand, draws an entirely different picture. According to Dr. Scheinin, most of the dolphins were observed around the trawling boats: the chances of observing a school of dolphins near a trawler is ten times higher than in the open sea. This is because the trawler serves as a "feeding station" for the dolphins: there they are not able to feed from the more expensive loot caught in the nets, but they are able to enjoy schools of other types of fish that swim around the trawler. "The problem is that this type of fishing endangers the dolphins. Eight dolphins die each year off the coast of Israel on average, and of those, four die after having been mistakenly caught in trawling nets. Seeing as many studies have proven the high intelligence of the dolphin, it is clear that these sea mammals are aware of this danger, but are left with little choice due to their need to search for food around the trawlers due to the scarcity of other food sources," Dr. Scheinin explains.

This conclusion is reinforced by the suckling female dolphins. These dolphins require larger quantities of food than usual, and despite the risk for the younger and much less experienced dolphins that swim by their side, all of the suckling dolphins have been observed significantly more frequently around the trawlers. This indicates that they could not obtain enough food in other places.

The dolphins off the coast of Israel spend most of their time in search of food while their mates in other areas in the world are far busier with social activities. This fact is yet another contributing factor to the assumption that they suffer a deficiency in food resources.

The present study illustrates, for the first time, the characteristics of the dolphins inhabiting the sea region off the Mediterranean coast of Israel. This dolphin population is stable and at any given time can be counted at about 350 dolphins. Of these, the researchers are personally familiar with 150 dolphins -- on a first name basis -- which can be identified by the dorsal fin, the dolphin's fingerprint. Forty of these are seen repeatedly and are permanent inhabitants of opposite the coast of Israel. "There is a stable dolphin population off the shores of Israel, and any resolution concerning the sea must also consider the dolphins. So as to preserve this population we must declare extensive marine nature reserves, so as to regulate fishing and bring an end to sea pollution. Regrettably, we are not considerate enough of the dolphins," concludes Dr. Scheinin.

Source: http://www.sciencedaily.com/releases/2010/02/100204101813.htm

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About Oceanic Defense
We are an international non-profit organization with members in over 60 countries, spanning 6 continents with 1 mission; healthy aquatic ecosystems free from human abuse and neglect. Oceanic Defense teaches people to protect our oceans by acting responsibly as consumers and by making smart decisions in our daily lives. Whether we are buying groceries, commuting to work, planning a vacation or advocating within our own communities; each action we take or decision we make either helps or hurts our oceans. We empower people to be part of the solution rather than part of the problem and work together to protect our blue planet.

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France backs bluefin tuna ban but after delay

France, Italy and Spain account for half of the world's total allowable catch of bluefin tuna.
PARIS (Reuters) - France said on Wednesday it would support a ban on global trade in bluefin tuna, but after an 18-month delay, bowing to pressure from the fishing lobby to hold off an immediate decision on the giant fish.

Environmentalists such as Greenpeace called the delay "absurd" and said it could lead to the extinction of the fish that is prized by sushi lovers.

"Asking for 18 months to implement this measure equates to waiting until there is no more bluefin tuna before acting," Greenpeace said in a statement. "The government is buying peace with the fishermen at a time of regional elections."

Monaco has proposed protecting bluefin tuna, which can fetch up to $100,000 in Japan, by listing it under appendix I of the Convention on International Trade in Endangered Species (CITES).

France did not expect a ban to come into effect before September 2011, Environment Minister Jean-Louis Borloo said on Wednesday, adding the CITES committee needed the results of a scientific study on stocks before taking a decision in July 2011.

"There is still powerful international lobbying from a big country, which has allies," he said, referring to Japan, where 80 percent of the catch is exported.

The European Union failed to make progress on bluefin tuna last year, with Greek Environment Commissioner Stavros Dimas and Maltese Fisheries Commissioner Joe Borg deadlocked over how far the EU should go to protect the fish.

EU diplomats expect to see faster progress this year under newly nominated Greek Fisheries Commissioner Maria Damanaki.

French Agriculture Minister Bruno Le Maire said on Wednesday that France would call on the European Commission to compensate fishermen for lost revenues should the ban be imposed.

Fishermen's representatives called the French position "incoherent" ahead of the regional elections in March.

"The government is really in a messy position," said Francois Wendling, head of a fishermen's trade association in Sete in southern France.

"If waiting for scientific studies is so important, why is the government giving a position now? This is purely political."

President Nicolas Sarkozy said last year he favoured a clear trade ban on bluefin tuna.

Asked if the government would stand by its position if fishermen decided to block ports as they did in Marseille last April, Le Maire said:

"French fishermen are reasonable people. But what makes them angry is when rules do not apply to everyone. France will ask for reinforced sanctions against countries which do not respect them (bluefin tuna fishing quotas)."

There are about 200 tuna boats in France, but only 28 are so-called "purse-seiners," 40-meter long high-tech boats which account for 90 percent of all French catch. Traditional fishing for domestic markets will remain possible, Le Maire said.

Source: http://www.reuters.com/article/idUSTRE6121Z620100203

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About Oceanic Defense
We are an international non-profit organization with members in over 60 countries, spanning 6 continents with 1 mission; healthy aquatic ecosystems free from human abuse and neglect. Oceanic Defense teaches people to protect our oceans by acting responsibly as consumers and by making smart decisions in our daily lives. Whether we are buying groceries, commuting to work, planning a vacation or advocating within our own communities; each action we take or decision we make either helps or hurts our oceans. We empower people to be part of the solution rather than part of the problem and work together to protect our blue planet.

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Slipped Through the Net: Failing Fish Stocks

ScienceDaily — At the Development Summit in Johannesburg in 2002, the European countries agreed to rebuild their fish stocks to levels that can produce the maximum sustainable yield, no later than 2015. According to scientists of the Excellence Cluster "Future Ocean," that goal is already out of reach: Of 54 analysed stocks, only saithe, western horse mackerel and Baltic sprat have a sufficiently large stock size and are fished at a sustainable rate. The state of 12 stocks, including North Sea cod, plaice and halibut, is so bad that they can not recover sufficiently until 2015, even if all fishing was halted. Other stocks could reach the target if fishing pressure was reduced substantially, but that has not happened so far.

These results were published by Dr. Rainer Froese, Leibniz Institute of Marine Sciences (IFM-GEOMAR) und Prof. Dr. Alexander Proelß, Walter-Schücking-Institute of International Law of the University of Kiel, in the journal Fish and Fisheries. The German scientists, both members of the interdisciplinary Excellence Cluster "Future Ocean," point out that the continuous overfishing of European stocks constitutes a breach of the precautionary principle, which is a binding principle of Community law.

"The precautionary principle is a binding legal principle for the organs of the European Commission and for the Council of Ministers. The current practice of continuous overfishing violates international law as well as Community law," says Prof. Dr. Alexander Proelß, expert of international law at the Walter-Schücking-Institute.

The obligation to manage fish stocks such that they can produce the maximum sustainable yield is part of the Law of the Sea (UNCLOS) of 1982, which entered into force in 1994. In the "Johannesburg Plan of Implementation" (2002), the European Union as well as Norway, Russia and Iceland, agreed to rebuild their fish stocks to the level that can produce the maximum sustainable yield, no later than 2015. "Until now, the provisions of the Law of the Sea have not been introduced into national law, and the plan of implementation had no visible impact on European fisheries management," says Proelß.

On the contrary: the fishing quotas for 2010 decreed by the Council of Ministers again exceed by far the catches that would allow the rebuilding of the stocks. "If this practice continues, Europe will miss by more than 30 years the goal that it has propagated," says Dr. Rainer Froese, fisheries biologist at the Kiel Leibniz Institute of Marine Sciences (IFM-GEOMAR).

Yet, catches from sustainably managed stocks could be substantially higher. "Our analysis suggests that landings could be 79% higher if stocks had been managed according to the international agreements," says Froese. "However, in European waters stocks are intentionally managed such that they stay close to the brink of collapse. This policy makes no sense from an ecological or economic point of view."

Source: http://www.sciencedaily.com/releases/2010/01/100121155224.htm

---

About Oceanic Defense
We are an international non-profit organization with members in over 60 countries, spanning 6 continents with 1 mission; healthy aquatic ecosystems free from human abuse and neglect. Oceanic Defense teaches people to protect our oceans by acting responsibly as consumers and by making smart decisions in our daily lives. Whether we are buying groceries, commuting to work, planning a vacation or advocating within our own communities; each action we take or decision we make either helps or hurts our oceans. We empower people to be part of the solution rather than part of the problem and work together to protect our blue planet.

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Coral Can Recover from Climate Change Damage, New Research Suggests

ScienceDaily — A study by the University of Exeter provides the first evidence that coral reefs can recover from the devastating effects of climate change. Published Jan. 11, 2010 in the journal PLoS ONE, the research shows for the first time that coral reefs located in marine reserves can recover from the impacts of global warming.

Scientists and environmentalists have warned that coral reefs may not be able to recover from the damage caused by climate change and that these unique environments could soon be lost forever. Now, this research adds weight to the argument that reducing levels of fishing is a viable way of protecting the world's most delicate aquatic ecosystems.

Increases in ocean surface water temperatures subject coral reefs to stresses that lead quickly to mass bleaching. The problem is intensified by ocean acidification, which is also caused by increased CO₂. This decreases the ability of corals to produce calcium carbonate (chalk), which is the material that reefs are made of.

Approximately 2% of the world's coral reefs are located within marine reserves, areas of the sea that are protected against potentially-damaging human activity, like dredging and fishing.
The researchers conducted surveys of ten sites inside and outside marine reserves of the Bahamas over 2.5 years. These reefs have been severely damaged by bleaching and then by hurricane Frances in the summer of 2004. At the beginning of the study, the reefs had an average of 7% coral cover. By the end of the project, coral cover in marine protected areas had increased by an average of 19%, while reefs in non-reserve sites showed no recovery.
Professor Peter Mumby of the University of Exeter said: "Coral reefs are the largest living structures on Earth and are home to the highest biodiversity on the planet. As a result of climate change, the environment that has enabled coral reefs to thrive for hundreds of thousands of years is changing too quickly for reefs to adapt.

"In order to protect reefs in the long-term we need radical action to reduce CO₂ emissions. However, our research shows that local action to reduce the effects of fishing can contribute meaningfully to the fate of reefs. The reserve allowed the number of parrotfishes to increase and because parrotfish eat seaweeds, the corals could grow freely without being swamped by weeds. As a result, reefs inside the park were showing recovery whereas those with more seaweed were not. This sort of evidence may help persuade governments to reduce the fishing of key herbivores like parrotfishes and help reefs cope with the inevitable threats posed by climate change."

Professor Mumby's research was funded by National Environment Research Council (NERC) and the Khaled bin Sultan Living Oceans Foundation.

Reef facts

• A coral reef is made up of thin layers of calcium carbonate (limestone) secreted over thousands of years by billions of tiny soft bodied animals called coral polyps.
• Coral reefs are the world's most diverse marine ecosystems and are home to twenty-five percent of known marine species, including 4,000 species of fish, 700 species of coral and thousands of other plants and animals.
• Coral reefs have been on the planet for over 400 million years.
• The largest coral reef is the Great Barrier Reef, which stretches along the northeast coast of Australia, from the northern tip of Queensland, to just north of Bundaberg. At 2,300km long, it is the largest natural feature on Earth.
• Coral reefs occupy less than one quarter of one percent of the Earth's marine environment, yet they are home to more than a quarter of all known fish species.
• As well as supporting huge tourist industries, coral reefs protect shorelines from erosion and storm damage.

High quality reef videos by Professor Peter Mumby can be viewed at: www.reefvid.org
The main funding for the research came from Khaled bin Sultan Living Oceans Foundation and the Natural Environment Research Council.

Source: http://www.sciencedaily.com/releases/2010/01/100109002310.htm

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Giant tuna fetches $177,000 at Japan fish auction

By SHINO YUASA, Associated Press Writer Shino Yuasa, Associated Press Writer

TOKYO – A giant bluefin tuna fetched 16.3 million yen ($177,000) in an auction Tuesday at the world's largest wholesale fish market in Japan.

The 513-pound (233-kilogram) fish was the priciest since 2001 when a 440-pound (200 kilogram) tuna sold for a record 20.2 million yen ($220,000) at Tokyo's Tsukiji market.

The gargantuan tuna was bought and shared by the owners of two Japanese sushi restaurants and one Hong Kong-based sushi establishment, said a market representative on condition of anonymity because he was not authorized to disclose the information.

Caught off the coast of northern Japan, the big tuna was among 570 put up for auction Tuesday. About 40 percent of the auctioned fish came from abroad, including from Indonesia and Mexico, the representative said.

Japan is the world's biggest consumer of seafood with Japanese eating 80 percent of the Atlantic and Pacific bluefins caught. The two tuna species are the most sought after by sushi lovers.

However, tuna consumption in Japan has declined because of a prolonged economic slump as the world's second-largest economy struggles to shake off its worst recession since World War II.

"Consumers are shying away from eating tuna ... We are very worried about the trend," the market representative said.

Apart from falling demand for tuna, wholesalers are worried about growing calls for tighter fishing rules amid declining tuna stocks.

The International Commission for the Conservation of Atlantic Tunas in November slashed the quota for the 2010 catch by about one-third to 13,500 tons (12,250 metric tons) — a move criticized by environmentalists as not going far enough.

Source: http://news.yahoo.com/s/ap/20100105/ap_on_bi_ge/as_japan_giant_tuna_sold