With concerns over climate change globally, you might think that the last thing that environmentalists would worry about would be the natural food chain of wildlife; but for the Great Lakes there could be severe consequences posed if the carp manage to enter waterways they’ve been barred from entering.

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Bighead carp are one of two non-native species of Asian carp causing widespread concern among Great Lakes advocates. The other is silver carp.

Great Lakes advocates are calling it a “conservation emergency” now that non-native Asian carp have been detected within seven miles of Lake Michigan. They want an immediate closure of locks and gateways leading to the lake in a literally”last-ditch” attempt to keep the fish out.

The fear is that the giant fish will disrupt the valuable Great Lakes sport fishery by outcompeting species at the top of the Lake Michigan food web, consuming the forage fish the established species depend on — and like many of the other 180 non-native aquatic species already in the Great Lakes, causing general ecosystem disruption.

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A new report, The Economics of Ecosystems and Biodiversity (TEEB), attempts to bring to the world’s attention the truly great economic value of ecosystems and biodiversity, as well as the benefits of taking these into account when making policies.

The value of the world’s natural ecosystems and biodiversity is something lacking in most economic analyses. Lack of value for what is truly priceless doesn’t just hurt the environment, however. It is also a sort of economic suicide. This new report, hosted by the United Nations Environment Programme and supported by key EU, UK, German, Swedish, Dutch, and Norwegian bodies, attempts to bring all of this to our attention more and show some positive case studies of how taking the environment into consideration can actually save us money.

As the report says: “the failure of markets to adequately consider the value of ecosystem services is of concern not only to environment, development and climate change ministries but also to finance, economics and business ministries.”

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Croatia and Hungary signed an agreement yesterday to protect a major biodiversity area that crosses borders along three rivers. The agreement is being called a “Trans-Boundary UNESCO Biosphere Reserve” and has resulted in the World Wildlife Fund (WWF) awarding the two countries with a “Leaders for a Living Planet” award.

The reserve will preserve several endangered species, among other environmental jewels. There is also the possibility of the reserve expanding several times over into neighboring countries in the future.

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The salmon fisheries along the Chuit River would be severely damaged, so much so that the researchers say that restoration would be “virtually impossible”.

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In a move praised by environmentalists fighting to protect vulnerable species, thousands of restaurants across the UK and Ireland have taken 69 fish off their menus.

The Compass Group, world’s largest contract caterer, is setting an example in addressing fisheries’ sustainability and helping to reduce demand for over-exploited fish. According to today’s Guardian, the 69 species on the Marine Conservation Society’s (MCS) “Fish to Avoid” list will no longer be served at 6,500 outlets across the UK and Ireland supplied by Compass.

Head of conservation at MCS, Simon Brockington, in the same article, praised the company’s decision, calling it a “crucial step in ensuring the long-term survival of vulnerable fisheries.”

Currently, a decision on whether or not to offer “official advice” to consumers on eating ethically is under consideration by the government’s Food Standards Agency. If the agency moves forward with the decision, it will encourage consumers not to buy or eat endangered fish,as well as direct them to the MCS and the Marine Stewardship Council (MSC).

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Biologists have known for years that the low numbers of Southern Resident Killer Whales in Puget Sound may be tied to vessel traffic. A new plan for curbing vessel activity may help increase the population of these marine mammals.

New rules regarding vessel traffic have been proposed by NOAA’s Fisheries Service to provide additional protection of the Southern Resident Killer Whales (Orcinus orca). The regulations, if adopted, would take effect as early as May 2010.

According to today’s release by NOAA, the new proposal would curb vessel activity by:

• Prohibiting vessels from approaching any killer whale closer than 200 yards
• Forbidding vessels from intercepting or parking in the path of a whale
• Establishing a half-mile-wide no-go zone along the west side of San Juan Island from May 1 through the end of September, where generally no vessels would be allowed

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17 dams recently built on the Mekong River in Southeast Asia are threatening fisheries, destroying a vast ecosystem, and starving millions. And 11 more dams are currently in the planning process.

The dams already in place are blocking fish from traveling upstream to spawn, and the new dams– many of which will sit nearer the river’s headwaters– could threaten the entire river ecosystem. 65 million people currently live and rely upon the Mekong for their sustenance and livelihood, and about 80 percent of their protein intake comes from the river’s fisheries.

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Ever stare at the seafood counter and wonder where all that fish comes from? Maybe not, but I do, and a new article in Martha Stewart’s Body+Soul magazine wades through some other issues that might be on your mind - overfishing, fish farming, omega-3s and mercury.

Although the article sugar coats a few things (e.g. wild fish generally being a safe, sustainable option - not true), it contains some good advice. First and foremost, get to know the people that sell you fish. They can be your best ally in making good choices and are often a wealth of knowledge.

Second, don’t be afraid to ask questions like, ‘Where is this fish from?’, ‘Is it farmed or wild?’, etc. This will help steer you in the right direction.

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Image ©Beth Bader

Nine shark attack survivors will lobby the Senate to put new restrictions on fishing for sharks. The current legislation, Shark Fisheries Management Plan, implemented in the late 1990s, and the Shark Finning Prohibition Act of 2000 has failed to prevent thirty-two percent of the sharks and rays that live in the open ocean from being classified as “threatened” this year by the International Union for the Conservation of Nature.

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In these days of ever-diminishing fish stocks and major threats to marine ecosystems, good news is hard to come by. But over the past few years, one fish species in particular–the Atlantic Haddock (Melanogrammus aeglefinus)–has made a dramatic comeback, surpassing even peak levels from pre-decline years.

A July 1, 2009 feature article in The Scientist–’The Great Haddock Revival’ (by Kirsten Weir)–details the remarkable rebound of this once decimated, commercial fish stock. While scientists are still debating the cause(s) of this, New England fishermen are nothing short of exuberant–especially given the concurrent decline of multiple, commercial “ground fish” stocks, such as cod, halibut, and pollock.

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Most of us are familiar with the idea of carbon dioxide (CO2) from industrial development leaching into the atmosphere, causing global warming. The effect of CO2 on ocean temperatures and acidification is much less well publicised, but just as worrying. In fact, it’s a potential cause of famine.

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According to a new Wildlife Conservation Society study, reef fish levels along middle class coastal communities in Eastern Africa tend to be significantly lower– up to 4 times lower– than along areas bordering wealthy or poor communities.

Reasons for the disparity are numerous, and they involve a complicated interplay between traditional customs, economic development and population dynamics. But middle class apathy could also be to blame.

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Although you may or may not be a part of the cultural elite who consider themselves caviar connoisseurs, if you have interest in the environment and economy you may be able to appreciate the developments occurring in in the world Caviar market thanks to a number of U.S. based fisheries.

For hundreds of years caviar was harvested for the wealthy and affluent of the world in much the same way. Large fishing boats would hall in nets full of sturgeon during spawning season. For most vessels the operation was for deck hands to sort the fish, males would be deposited into a holding tank for market. Females would be cut open for their eggs to be harvested for caviar and the rest would be discarded or kept in another holding tank for the fish markets. It was this approach, yielding only one harvest per female fish, which helped contribute to caviar becoming such a high priced luxury for the affluent.

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The ocean is a complex system which crosses our arbitrary international boundary’s making management of these resources incredibly difficult. Over fishing of one fish species in one area can have a knock-on effect in areas far removed and on completely different species. Our understanding of these delicate interactions is very limited.

Since 1983 the fisheries of the European Union have been managed under the Common Fisheries Policy. In September this year the European Commission announced a full review of of the Common Fisheries Policy because it has failed to protect fish stocks.

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Since it was announced last week that a deal had been reached for the probable removal of four dams on the Klamath River, I’ve been ecstatic. The Klamath dams have been the cause of massive fish kills, are owned by the richest man in America Warren Buffett, do not provide green energy, have shut down west coast fisheries, and have hurt the Native American culture.  Of course, since the Bush administration negotiated the deal, I am wary there may be a hidden agenda for this once mighty river in my neighborhood.

Should the nonbinding deal go through, this would be the largest dam removal project in US history.  The alternative for PacificCorp to re-license the dams was to build fish ladders mandated by federal biologists costing $300 million. Dam removal is the cheapest option and the best decision for the health of endangered salmon on the Klamath River. The California Energy Commission reported PacifiCorp could save $101 million over the next 30 years if the dams were removed and replacement power bought.  As part of the deal, ratepayers will foot $200 million in removal cost, and California will ask voters to approve a $250 million bond.  Studies and analysis will occur until 2012, at which point the dams could be removed in 2020.  Under the deal, PacificCorp would receive immunity from the dams’ environmental liabilities.

Bush wanted the deal to remove the dams, yet his administration has always backed farmers in the dispute over water rights, such as when irrigation was shut off to under the Endangered Species Act in 2001. Even after the Klamath dams’ removal deal was announced on November 13, 2008,  Bush released a statement saying, “Together, we have produced an agreement that will greatly reduce the risk of future shutdowns of the irrigation system.“  Already, the Klamath deal is under attack for supporting farmers over fish. Many suspect the deal will shut down California water quality hearings that may have doomed the dams anyway.

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By Lester R. Brown

After World War II, accelerating population growth and steadily rising incomes drove the demand for seafood upward at a record pace. At the same time, advances in fishing technologies, including huge refrigerated processing ships that enabled trawlers to exploit distant oceans, enabled fishers to respond to the growing world demand. In response, the oceanic fish catch climbed from 19 million tons in 1950 to its historic high of 93 million tons in 1997. This fivefold growth—more than double that of population—raised the wild seafood supply per person worldwide from 7 kilograms (15.4 pounds) in 1950 to a peak of 17 kilograms in 1988. Since then, it has fallen to 14 kilograms.

As population grows and as modern food marketing systems give more people access to these products, seafood consumption is growing. Indeed, the human appetite for seafood is outgrowing the sustainable yield of oceanic fisheries. Today 75 percent of fisheries are being fished at or beyond their sustainable capacity. As a result, many are in decline and some have collapsed.

While oceanic fisheries face numerous threats, it is overfishing that directly threatens their survival. Oceanic harvests expanded as new technologies evolved, ranging from sonar for tracking schools of fish to vast driftnets that are collectively long enough to circle the earth many times over. Indeed, a 2003 landmark study published in Nature concluded that 90 percent of the large fish in the oceans had disappeared over the last 50 years, as a result of this expansion.

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The harvest of soft shell and peeler blue crabs in Chesapeake Bay has been declared a commercial fishery failure by the U.S. Government. The federal declaration is an important step in providing economic assistance to the communities reliant upon crab production.

The governors of Maryland and Virginia requested that the Secretary of Commerce determine a disaster in the blue crab fishery and applied for more than $15 million to offset the economic impact of new limits on the bay’s crab harvest. The harvest value of soft shell crabs in Maryland and Virginia has declined by 41 percent from the late 1990s, according to NOAA’s Fisheries Service.

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Dead zones are created, in the beginning, by nitrogen (among other things). Nitrogen is the byproduct (in this instance) of natural gas transformed in to ammonia fertilizer, which is then spread across the agricultural landscape of many western and emerging nations.

From there the runoff makes its way to streams, then rivers and finally the oceans. It is at this stage upon reaching the ocean that the real trouble begins. The increase of nitrogen in the waters fuels the increase of algae which subsequently absorbs exorbitant amounts of oxygen, making life unbearable for most creatures…

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According to this year’s report, Americans consumed a total of 4.908 billion pounds of seafood in 2007, slightly less than the 4.944 billion pounds in 2006. The average American ate 16.3 pounds of fish and shellfish in 2007, a one percent decline from the 2006 consumption figures of 16.5 pounds. But even though U.S. seafood consumption is flat, global consumption continues to grow; a major study in the journal Science predicts the global collapse of the world’s major fisheries by the middle of this century. Already, over the past 50 years, there has been a 90 percent reduction of the ocean’s large predatory fish, including sharks, swordfish and tuna.

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