fisheries

Heading for cooler waters - Climate change impact of warming oceans on global fish stocks

For the first time scientists have demonstrated the impact of climate change on ocean warming and sea surface temperatures affecting global fisheries stocks. Previous studies were limited to individual fisheries. The changes have been occurring clearly since the 1970s, the scientists say. The implications of this research raises the need for timely changes in fisheries management practices and adaptation plans for communities dependant on fishing, particularly climate vulnerable developing countries in the tropics.

"Given global fisheries contribute hugely to the world's economy and food security, this is a significant finding," said co-author Dr Reg Watson from the University of Tasmania's specialist Institute for Marine and Antarctic Studies."We are no longer talking about future hypotheticals - we are talking about impacts on a global scale that we can already demonstrate."

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Overfishing: Bluefin tuna crashing toward extinction

The 25% cut in the Australian quota for Southern Bluefin Tuna has been described by the Wilderness Society as a step in the right direction, but the cut is too little too late with the fish species teetering close to the edge of extinction. The Quota reduction was made in an agreement at the Commission for the Conservation of Southern Bluefin Tuna meeting in South Korea in October 2009. The fish was listed in 1996 as Critically Endangered on the IUCN Red List of Threatened Species.

Related: Papua New Guinea tuna factories threaten regional ecology, livelihoods

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