With the usual Green/Left faith in lies, the latest report (see below) offers the total absurdity that “Our children will see a world without seafood if we don’t change things”. Australia alone controls huge areas of ocean by virtue of being an island continent and the Australian navy already energetically polices its heavily regulated fisheries, regularly seizing illegal fishing boats and fishermen from other countries. It does not catch them all but there is no doubt that its activities do preserve the fisheries concerned. The illegal fishermen would not take the big risks of being there except that there are lot of fish there. And the EU and the USA also have many legal measures to preserve their fisheries from overfishing. Such government actions are not nearly as effective as privatizing the fisheries would be but they avert any real disasters. That many fisheries worldwide are being grossly overfished is undoubted but telling gross lies about the situation is more likely to induce skepticism than sensible action. The most effective measure towards preserving fisheries would probably be to ban seafood imports from third-world countries that do not effectively manage their fisheries but you will see no mention of that in the report below. Asking campaigning Greenies to take national differences into account when they make their pronouncements and recommendations is too much to ask, of course. From the Zero Population Growth follies of the 60s onward, their crazed minds have always tended to see the world as an undifferentiated featuresless gruel. Simplistic theories rather than the complexities of reality are all that they seem capable of handling.

 

The report:

 

“An international group of ecologists and economists warned yesterday that the world will run out of seafood by 2048 if steep declines in marine species continue at current rates, based on a four-year study of catch data and the effects of fisheries collapses. The paper, published in the journal Science, concludes that overfishing, pollution and other environmental factors are wiping out important species around the globe, hampering the ocean’s ability to produce seafood, filter nutrients and resist the spread of disease. “We really see the end of the line now,” said lead author Boris Worm, a marine biologist at Canada’s Dalhousie University. “It’s within our lifetime. Our children will see a world without seafood if we don’t change things.”

The 14 researchers from Canada, Panama, Sweden, Britain and the United States spent four years analyzing fish populations, catch records and ocean ecosystems to reach their conclusion. They found that by 2003 — the last year for which data on global commercial fish catches are available — 29 percent of all fished species had collapsed, meaning they are now at least 90 percent below their historic maximum catch levels. The rate of population collapses has accelerated in recent years. As of 1980, just 13.5 percent of fished species had collapsed, even though fishing vessels were pursuing 1,736 fewer species then. Today, the fishing industry harvests 7,784 species commercially. “It’s like hitting the gas pedal and holding it down at a constant level,” Worm said in a telephone interview. “The rate accelerates over time.”

Some American fishery management officials, industry representatives and academics questioned the team’s dire predictions, however, saying countries such as the United States and New Zealand have taken steps in recent years to halt the depletion of their commercial fisheries. “The projection is way too pessimistic, at least for the United States,” said Steven Murawski, chief scientist for the National Marine Fisheries Service, which is part of the National Oceanic and Atmospheric Administration. “We’ve got the message. We will continue to reverse this trend.”

 

More here

The Journal abstract for the above report:

Impacts of Biodiversity Loss on Ocean Ecosystem Services

By Boris Worm et al.

Human-dominated marine ecosystems are experiencing accelerating loss of populations and species, with largely unknown consequences. We analyzed local experiments, long-term regional time series, and global fisheries data to test how biodiversity loss affects marine ecosystem services across temporal and spatial scales. Overall, rates of resource collapse increased and recovery potential, stability, and water quality decreased exponentially with declining diversity. Restoration of biodiversity, in contrast, increased productivity fourfold and decreased variability by 21%, on average. We conclude that marine biodiversity loss is increasingly impairing the ocean’s capacity to provide food, maintain water quality, and recover from perturbations. Yet available data suggest that at this point, these trends are still reversible.

 

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