SUBSCRIBE TO OUR FREE NEWSLETTER
Daily news & progressive opinion—funded by the people, not the corporations—delivered straight to your inbox.
5
#000000
#FFFFFF
5
#000000
#FFFFFF
Photo courtesy of Dr Simon Foale, ARC Centre of Excellence for Coral Reef Studies
Goodbye, Fish: Rising CO2 Direct Threat to Sea Life
Study: Rising CO2 affecting brains, central nervous systems of sea fish
Jan 16, 2012
New research shows the disastrous consequences the world's rising carbon dioxide levels are having on ocean life.
A team of researchers from the Australian Research Council Centre of Excellence for Coral Reef Studies and James Cook University published their findings in the journal Nature Climate Change. They document how elevated CO2 is "driving fish crazy."
The Australian Associated Pressreports that the new research point to ocean problems beyond acidification. From Professor Phillip Munday, one of the researchers:
''We've now established it isn't simply the acidification of the oceans that is causing disruption, as is the case with shellfish and plankton with chalky skeletons. But the CO2 itself is damaging the fishes' central nervous systems.''
Agence France-Pressereports:
The team began by studying how baby clown and damsel fishes performed alongside their predators in CO2-enriched water.
They found that while the predators were somewhat affected, the baby fish suffered much higher rates of attrition.
"Our early work showed that the sense of smell of baby fish was harmed by higher CO2 in the water, meaning they found it harder to locate a reef to settle on or detect the warning smell of a predator fish," said Munday.
The team then examined whether fishes' sense of hearing -- used to locate and home in on reefs at night, and avoid them during the day -- was affected.
"The answer is, yes it was. They were confused and no longer avoided reef sounds during the day. Being attracted to reefs during daylight would make them easy meat for predators."
Prof. Munday issued a stark warning:
"We've found that elevated CO2 in the oceans can directly interfere with fish neurotransmitter functions, which poses a direct and previously unknown threat to sea life," Prof. Munday says.
Prof. Munday said that around 2.3 billion tonnes of human CO2 emissions dissolve into the world's oceans every year, causing changes in the chemical environment of the water in which fish and other species live.
Join Us: News for people demanding a better world
Common Dreams is powered by optimists who believe in the power of informed and engaged citizens to ignite and enact change to make the world a better place. We're hundreds of thousands strong, but every single supporter makes the difference. Your contribution supports this bold media model—free, independent, and dedicated to reporting the facts every day. Stand with us in the fight for economic equality, social justice, human rights, and a more sustainable future. As a people-powered nonprofit news outlet, we cover the issues the corporate media never will. |
Our work is licensed under Creative Commons (CC BY-NC-ND 3.0). Feel free to republish and share widely.
New research shows the disastrous consequences the world's rising carbon dioxide levels are having on ocean life.
A team of researchers from the Australian Research Council Centre of Excellence for Coral Reef Studies and James Cook University published their findings in the journal Nature Climate Change. They document how elevated CO2 is "driving fish crazy."
The Australian Associated Pressreports that the new research point to ocean problems beyond acidification. From Professor Phillip Munday, one of the researchers:
''We've now established it isn't simply the acidification of the oceans that is causing disruption, as is the case with shellfish and plankton with chalky skeletons. But the CO2 itself is damaging the fishes' central nervous systems.''
Agence France-Pressereports:
The team began by studying how baby clown and damsel fishes performed alongside their predators in CO2-enriched water.
They found that while the predators were somewhat affected, the baby fish suffered much higher rates of attrition.
"Our early work showed that the sense of smell of baby fish was harmed by higher CO2 in the water, meaning they found it harder to locate a reef to settle on or detect the warning smell of a predator fish," said Munday.
The team then examined whether fishes' sense of hearing -- used to locate and home in on reefs at night, and avoid them during the day -- was affected.
"The answer is, yes it was. They were confused and no longer avoided reef sounds during the day. Being attracted to reefs during daylight would make them easy meat for predators."
Prof. Munday issued a stark warning:
"We've found that elevated CO2 in the oceans can directly interfere with fish neurotransmitter functions, which poses a direct and previously unknown threat to sea life," Prof. Munday says.
Prof. Munday said that around 2.3 billion tonnes of human CO2 emissions dissolve into the world's oceans every year, causing changes in the chemical environment of the water in which fish and other species live.
New research shows the disastrous consequences the world's rising carbon dioxide levels are having on ocean life.
A team of researchers from the Australian Research Council Centre of Excellence for Coral Reef Studies and James Cook University published their findings in the journal Nature Climate Change. They document how elevated CO2 is "driving fish crazy."
The Australian Associated Pressreports that the new research point to ocean problems beyond acidification. From Professor Phillip Munday, one of the researchers:
''We've now established it isn't simply the acidification of the oceans that is causing disruption, as is the case with shellfish and plankton with chalky skeletons. But the CO2 itself is damaging the fishes' central nervous systems.''
Agence France-Pressereports:
The team began by studying how baby clown and damsel fishes performed alongside their predators in CO2-enriched water.
They found that while the predators were somewhat affected, the baby fish suffered much higher rates of attrition.
"Our early work showed that the sense of smell of baby fish was harmed by higher CO2 in the water, meaning they found it harder to locate a reef to settle on or detect the warning smell of a predator fish," said Munday.
The team then examined whether fishes' sense of hearing -- used to locate and home in on reefs at night, and avoid them during the day -- was affected.
"The answer is, yes it was. They were confused and no longer avoided reef sounds during the day. Being attracted to reefs during daylight would make them easy meat for predators."
Prof. Munday issued a stark warning:
"We've found that elevated CO2 in the oceans can directly interfere with fish neurotransmitter functions, which poses a direct and previously unknown threat to sea life," Prof. Munday says.
Prof. Munday said that around 2.3 billion tonnes of human CO2 emissions dissolve into the world's oceans every year, causing changes in the chemical environment of the water in which fish and other species live.
We've had enough. The 1% own and operate the corporate media. They are doing everything they can to defend the status quo, squash dissent and protect the wealthy and the powerful. The Common Dreams media model is different. We cover the news that matters to the 99%. Our mission? To inform. To inspire. To ignite change for the common good. How? Nonprofit. Independent. Reader-supported. Free to read. Free to republish. Free to share. With no advertising. No paywalls. No selling of your data. Thousands of small donations fund our newsroom and allow us to continue publishing. Can you chip in? We can't do it without you. Thank you.