Ocean Acidification Weakening Seafood Supplies

by Nellie J

As the chemistry of our oceans change due to global warming, many small island communities are feeling the effects upon their main source of food…Fish!

The ironic situation of the dwindling seafood supply is that the small countries that will be most effected have done the least to contribute to the problem.

As seafood supplies continue to drop around the globe many small islands are starting to feel the result of climate change. Ocean acidification combined with over fishing is having a devastating effect upon our oceans.

It has been estimated by scientists that there will be no fish left in the ocean by 2048.

Small nations to be hit hardest by ocean acidification

Food security problems caused by climate change and ocean acidification will hit small island and coastal nations hardest, environmental group Oceana said on Monday.

The Comoros islands in the Indian Ocean headed the non-profit group’s rankings of nations most vulnerable to the combined effects of higher carbon dioxide emissions and ocean temperatures, and the increasing acidity of the world’s water.

Nations that depend heavily on seafood as a source of protein may face increased food insecurity, with shellfish like oysters, clams and mussels particularly vulnerable, it said.

Togo, the Cook Islands, Kirbati, and Eritrea rounded out the report’s top five.

“Most of the nations that will suffer have done very little to cause climate change,” the study’s author, marine scientist Matthew Huelsenbeck, said, noting those hardest hit rely on small-scale fishermen who are not equipped to chase retreating fish into colder, deeper, and more distant waters.

The report coincided with the third ‘Symposium on the Ocean in a High CO2 World’ in the Californian coastal town of Monterey, which is addressing increased ocean acidification.

Read more: SMH

Warming climate, changing ocean chemistry threaten seafood-dependent countries

More than a billion people, many of then the poorest in the world, rely on fish and shellfish to survive. Their food supply is threatened by changes in the ocean wrought by carbon emissions: a second line problem of global warming.

A new report from the international environmental group Oceana describes how climate change is affecting the seas and making food from it more scarce in vulnerable nations.

The dual climate threats to ocean-based food security are temperature and chemistry. Temperature changes where fish live: in a warming ocean, generally, fish head away from the tropics and shallow waters, looking for the right temperatures in which they can feed and breed. It can also drive fish toward unexpected predators and make them invasive species, destabilizing ecological balance in different regions.

Read more: SPCR.org

Coral is hardest hit by ocean acidification.

As the world continues down the path of burning fossil fuels, the problem increases daily.

In a time when many nations rely on seafood as a main source of dietary protein, it would make sense to start backing off on carbon emissions and to start looking at alternate energy production?

There are many sources of non-fossil fuels available, but we continue to burn fossil fuels in total disregard for the warnings that scientists and experts deliver on a daily basis!

The world is in crisis and we must start to amend our ways at all cost to at least undo some of the damage that is being created.

What are your concerns related to ocean acidification and do you think we ought to start implementing global change in our attitudes towards the ocean?

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