Wednesday, August 5, 2009

Marine Early Recovery Signs

This is a taste of good news about the global fishery. It states the obvious, that recovery is generally possible in most specific fisheries. It is certainly desirable and I will go further and state that recovery needs to approach natural optimal levels before proper fishing is permitted.

The industry has been strangled by a simple lack of resource ownership everywhere which has placed control in the hands of the most selfish bone stupid operators available and their political lapdogs. These demolished fisheries are now been reclaimed because their destroyers have abandoned their interest.

In Canada we struggle to restore the salmon fishery at great expense, only to have the bulk of the catch likely intercepted on the high seas. This type of fishery needs a true international management system that sharply curbs methods and catch.

I am more and more inclined to see the whole wild fishery abandoned for decades until a full recovery is proven and then harvested using sustainable methods. We can actually do it, because we are mastering the art of producing farmed fish of quite a few species.

The success of the salmon farming industry is actually major. While BC’s own fishery collapsed to less than 100,000 tons (if I recall the number correctly) the farmed salmon industry quickly replaced all of the original production. It is able to become a vast huge industry and this has happened in Europe.

We have been treated to carping by self proclaimed environmentalists over fish farming of any kind while the wild fishery has stripped the oceans bare without a peep. After all those pirates run under flags of convenience and can shoot.

I personally support the actions of navies to suppress piracy in general. I also support the use of navies to create a global fishery management system that benefits all mankind forever. The present chaos is untenable in even the short term and it is certain the global industry is headed for a general collapse.

Many Marine Ecosystems Can Recover Under Appropriate Management

by Staff Writers
Woods Hole MA (SPX) Aug 03, 2009
An international team of scientists with divergent views on ocean ecosystems has found that efforts to rebuild many of the world's fisheries are worthwhile and starting to pay off in many places around the world. Their study puts into perspective recent reports predicting a total collapse of global fisheries within 40 years.

In a paper published in the July 31 issue of Science, study co-author Mike Fogarty of the Northeast Fisheries Science Center (NEFSC) of NOAA's Fisheries Service in Woods Hole, Mass. and 20 co-authors say that efforts made to reduce overfishing are succeeding in five of ten large marine ecosystems studied. Some of the successes noted are in U.S. fisheries.

Despite some good news, the researchers found that 68 percent of the worldwide fisheries examined by the team need rebuilding and that even lower rates of fish removals are needed to reverse the collapse of vulnerable species.

Based on the available data, the team estimated that lightly fished and rebuilding ecosystems account for less than 10 percent of world fisheries area and catch, but represent examples of opportunities for successfully rebuilding marine resources elsewhere.

Fogarty, head of the NEFSC's Ecosystems Assessment Program and a specialist in ecosystem based management, says finding a balance between fishing and conservation, while difficult, is possible and has been accomplished in a number of fisheries.

"Sometimes small changes have a big effect. It is not a 'one size fits all' management approach since each fishery has its own unique circumstances," said Fogarty, who helped provide data from the U.S. and worked on the analyses that helped shape the report.

"Many of the world's fisheries have a long history of overexploitation. Different management tools are needed, depending on the situation, to restore marine ecosystems and rebuild fisheries. It takes time.
There have been successes in New Zealand and on the U.S. West Coast, and there are promising solutions in other areas, but rebuilding efforts have to be done on an ecosystem basis and from a global perspective."

The new study follows a controversial prediction that wild caught fish will disappear from the oceans by 2048. That statement, contained in a 2006 Science article that focused on the relationship between biodiversity and ecosystem services in the oceans, was made by marine ecologist Boris Worm of Dalhousie University in Halifax, Nova Scotia.

Fisheries scientist Ray Hilborn of the University of Washington in Seattle and others disagreed with the prediction, and a debate ensued between fisheries scientists and marine ecologists about the status of the world's ocean ecosystems. But the two researchers soon met to discuss the issue through the National Center for Ecological Analysis and Synthesis (NCEAS) in Santa Barbara, Calif.

Fogarty and scientists from various disciplines around the world were asked to work with Worm and Hilborn to find common ground on which to assess the prospects for restoring depleted fish populations and their ecosystems.

The team compiled and analyzed global catch data, and evaluated scientific stock assessments, research trawl surveys, and small-scale fishery information using dozens of models. They considered historical fisheries and current illegal or unreported fishery catches.

The scientific team addressed two basic questions: How do changes in exploitation rates (the amount of fish taken from the ocean each year) affect fish populations, fishing communities and yields, and which management approaches have proved successful in rebuilding marine ecosystems.

The authors caution that their analyses were based largely on managed fisheries in developed countries, where scientific data on fisheries have been collected for decades. There was far less data from other parts of the world, but nonetheless, there are positive signs in developing countries.

As one example, scientists, fishery managers and local communities in Kenya worked together to close some fisheries and restrict certain fishing gear, management efforts that have led to increased fish size and abundance and more income for fishers.

Although optimistic, the authors acknowledge that many problems face rebuilding efforts, which often take years or decades and have short term economic costs. On a worldwide scale, the redistribution of fishing effort from industrialized countries to the developing world, as is evident in Africa, has meant competition between local fishing boats and foreign fleets.

The authors also note that effective controls on exploitation rates are still lacking in vast areas of the ocean, including those beyond national jurisdictions.

Steve Murawski, chief scientist for NOAA's Fisheries Service, says the team's two-year effort has resulted in more comprehensive databases and a broader view of the issue.

"This study clearly demonstrates that in both developing and developed parts of the world, if fishery exploitation rates are reduced sufficiently, species and their ecosystems have the capacity to recover," Murawski said.

"The study drew together two scientific approaches, one focused on conservation of marine communities and the other focused on the science of fishery population dynamics. The result is a product that has profound importance in the design of management systems to achieve diverse goals for conserving and using marine ecosystems."

The 21 study authors, led by Worm and Hilborn, found that management tools can pay off in the long run. A combination of traditional approaches, such as catch quotas and community management, coupled with strategically placed fishing closures, more selective fishing gear, ocean zoning, and economic incentives hold promise for restoring marine fisheries and ecosystems.

Laws that explicitly forbid overfishing and specify clear rules and targets for rebuilding were seen as important prerequisites.

"When you reduce fishing rates, the sacrifice begins to pay off," Fogarty said. "Now it is a matter of getting the recovery underway. We are seeing this in the northeast United States in haddock, sea scallops, and other fishery resources. Sometimes the steps to get to recovery are painful, but the dividends at the end make it worthwhile."

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