oysters, crabs & clams under threat from co2 along east coast – study - carbon dioxide absorbent

by:Demi     2019-09-07
oysters, crabs & clams under threat from co2 along east coast – study  -  carbon dioxide absorbent
Vulnerability and adaptability of American shellfish fisheries to ocean acidification (OA)
This is the first national study of the economic and social data of 23 coastal communities to consider physical factors.
It was published on Monday in the science journal natural climate change.
Read more: the rise in mercury in Hawaiian yellowfin tuna shellfish constitutes a lucrative business in the United States, bringing $1 billion a year.
OA is the result of the Ocean absorbing more and more carbon dioxide produced by burning fossil fuels.
Acidic seawater disrupts the thermodynamic stability of the ocean, making it more difficult for organisms with calcium carbonate shells or skeletons to grow shells and survive.
"Ocean acidification has cost the oyster industry in the Pacific Northwest nearly $0. 11 billion, endangering about 3,200 jobs," said Julie Ekstrom . " Director of the Climate Adaptation Program at the University of California-Davis Institute of Policy, lead author of the study.
"Our research shows for the first time that many communities across the United States face similar risks.
"In the southern Massachusetts fishery alone, shellfish account for $0. 3 billion a year, with the state issuing 1,350 commercial fishing licenses a year.
Increased community risk dependent on Shell
Fishing for their income, if there is a lack of diversity in employment, it is difficult for the region to adapt or cope with changes.
Lisa Suatoni, a senior scientist at the Natural Resources Conservation Council, said: "It will pinch its wallets, endanger livelihoods, and change the structure of communities across the country (NRDC)
The Marine Project said in a statement.
Read more: The Earth's oceans may be mass extinct, and the combined study says states such as Massachusetts, New Jersey, Virginia, and Louis Anna are particularly vulnerable-not just because of their economic dependence on shells --
Because they lack research and monitoring of ocean acidification and government funding to help research risks.
The ocean can absorb about 30% of the carbon dioxide in the atmosphere.
However, since burning fossil fuels for a century, air pollution has intensified and carbon dioxide content in the atmosphere has increased.
This tilt the balance of carbon dioxide in the ocean, making the ocean more acidic.
The increasing amount of sewage and chemical waste discharged into the river flows into the ocean, prompting algae to breed in large quantities.
Marine life can consume algae, but when it is out of proportion, it breaks down carbon dioxide and releases it into the water, increasing the pH.
This study not only studied the contribution of carbon dioxide to acidification, but also the contribution of nutrient pollution in agricultural runoff.
Agricultural runoff-or nitrogen pollution-is transmitted to the ocean through the river, causing algae to multiply in large quantities and increasing ocean acidification.
Read more: Satellite image studies from the remote area of space monitoring ocean acidification found that the East Coast estuary such as Chesapeake Bay, Naragansett Bay, and the Long Island Strait have a large amount of nitrogen pollution.
In the Gulf of Mexico, the shell software industry is limited to oysters, and there are few options for finding alternative shellfish in the short term. term.
The study did provide a solution.
It recommends reducing agricultural contaminants in the Chesapeake Bay, diversifying fishing fleets and investing in aquaculture in southern Massachusetts, developing early warning systems in the Pacific Northwest, and cultivating acidification-
Resistant strains of Gulf of Mexico oysters.
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