Fishing is now back in the spotlight after the world lost one of its best and most popular species to climate change, the world’s largest fish and its main food source.
A report from the US Geological Survey said climate change and pollution in the global fishing industry are affecting more than 1,000 species of fish, but the most popular are the large, white-throated bluefin tuna, and the Pacific bluefin.
“We don’t have any scientific evidence yet to suggest that there is a global impact, but we are concerned about the impacts of climate change on our fish stocks,” said John C. Thomas, a professor of oceanography and ecology at Florida State University.
“We do know that there’s a higher mortality rate for fish species in the western Pacific than for those species in our own oceans.
We also know that when fish are overfished, they tend to die faster.”
The report came after a new report by the International Institute for Applied Systems Analysis (IIASA), which estimated the total amount of carbon dioxide in the ocean in 2014 was about 20 percent of the amount in the atmosphere.
Thomas said that with that amount of CO2, we would see a dramatic increase in fish mortality rates, especially in bluefin, which are important to the world economy.
The report found that a single fish killed every 20 minutes in the southern Philippines in the first half of this year was equivalent to eating almost three million tonnes of tuna, a little more than the total output of all the United States’ commercial fishing fleets.
Thomas said the loss of one species is devastating for the global economy.
“The world has lost one in the last 10 years,” he said.
“The loss of the bluefin is huge, but it’s also the loss for the fish that are the primary consumers of the world seafood market.
They eat 80 percent of global fish and a lot of the seafood that we eat.”
The species that are most at risk are the white-fronted or white-tailed finfish, which were once a major industry in the United Kingdom, the United Arab Emirates and other countries, but are now declining due to overfishing.
Thomas estimates that there are now only about 100,000 of the fish left in the world.
“A lot of them are going to be in trouble,” he explained.
“But if we don’t do something about climate change now, they will be gone.
They’re going to disappear in 20 to 30 years.”
Thomas said that fish stocks in the wild are at risk from climate change as well, as a warmer ocean means more fish can be caught.
“Climate change is already making the oceans warmer, so we’re already seeing more fish dying because of that,” he added.
“It’s happening already.
We need to act now to save these fish.”