The question is whether enough fishery stocks can survive at a level that allows them to recover before global warming does them in and causes a radical shift in the entire ocean ecosystem.
New Study First To Identify National Economies That Are Likely To Suffer Most As Climate Change Imperils Fisheries
With climate change threatening to ruin ocean reefs, push salt water into freshwater habitats and produce more coastal storms, millions of struggling people in fishery-dependent nations of Africa, Asia and South America could face unprecedented hardship, according to a new study published today in the February issue of the peer-reviewed journal Fish and Fisheries. The study by a team of scientists at The WorldFish Center, the University of East Anglia, Simon Fraser University, the Centre for Environment, Fisheries and Aquaculture Science, the University of Bremen, and the Mekong River Commission is the first to identify individual nations that are "highly vulnerable" to the impact of climate change on fisheries. WorldFish is one of 15 centers supported by the Consultative Group on International Agricultural Research (CGIAR).
New findings on climate change and fisheries
The disturbing results demonstrate for the first time: There will be a large-scale re-distribution of species, with most moving towards the Pole On average, fish are likely to shift their distribution by more than 40km per decade and there will be an increasing abundance of more southern species Developing countries in the tropics will suffer the biggest loss in catch [...] The invasion and local extinction of species may disrupt marine ecosystems and biodiversity "Our research shows that the impact of climate change on marine biodiversity and fisheries is going to be huge," said Dr Cheung. "We must act now to adapt our fisheries management and conservation policies to minimise harm to marine life and to our society.
Another idea would be to let people/companies/organisations lease large areas where they had a fishing monopoly. Then they would have an incentive to maintain strong populations to secure big future catches which only they would have access to. As fishes move around, these areas would need to be very big. Peak oil is not an energy crisis. It is a liquid fuel crisis.
The lease idea wouldn't work because the usual Market Bollocks would reward short term performance over long term husbandry, and strip-fishing would earn more than long term fish management.
Once the owners run out of fish, they can always move to something else, like blowing the tops off mountains for coal.
The fact that the fish would remain extinct wouldn't be a problem for them.
The most, and may be the only practiceable point for control is the ship (e.g. the number, size and technology allowed). This calls for traditional command and control policy.
We should be shredding a lot of the larger ships.
