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小木虫论坛-学术科研互动平台 » 科研生活区 » English Cafe » Today‘s news » Everyday News-CO2 Makes Fish Dumb
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lion1998

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[交流] Everyday News-CO2 Makes Fish Dumb

To survive the complex, often-dangerous environment of a coral reef, the colorful reef fish Neopomacentrus azysron has to be a clever fish. Like many intelligent animals, it uses the right and left hemispheres of its brain for different purposes, which allows for quick problem-solving. But this reef fish could be in danger of losing its smarts as levels of CO2 in the ocean continue to rise due to human activity, according to a new study. Researchers raised one set of reef fish larvae in normal seawater and one set in water containing twice as much CO2—the level that the Pacific Ocean is expected to reach by 2100. When the fish grew up, the team put them in a maze. Each fish that had been spawned in the normal water consistently preferred to turn either right or left every time it reached the barrier, a sign of "handedness." But fish that had been spawned in high CO2 didn't have a favorite hand: they turned right or left at random each time they hit the barrier. This loss of handedness, the researchers report today in Biology Letters, may be a sign of other, more subtle developmental brain dysfunctions that might hurt the ability of this fish, and other marine species that could be similarly affected by CO2, to survive in a high-carbon future.
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Iamaleafonthewind.
1楼 2011-09-10 16:57:44
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执古御今
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小木虫(沙发+1，金币+0.5):恭喜抢个沙发，再给个红包
2楼2011-09-10 17:01:00
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yieryi
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小木虫(金币+0.2):抢了个小板凳，给个红包
3楼2011-09-10 17:04:06
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yinjuanchen

铁杆木虫 (著名写手)
Can the high concentration of CO2 affect our brain?
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闭关，写写写
4楼2011-09-10 17:11:40
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witch_girl

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high co2 makes the fish dump, but what makes me dump?

........
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Make it or Break it
5楼2011-09-10 18:25:24
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asymmetry

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皇家神龍教-asymmetry

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引用回帖:
5楼: Originally posted by witch_girl at 2011-09-10 18:25:24:
high co2 makes the fish dump, but what makes me dump?

........

High price of the house makes us dump.
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6楼2011-09-10 20:43:00
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witch_girl

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引用回帖:
6楼: Originally posted by asymmetry at 2011-09-10 20:43:00:
High price of the house makes us dump.

maybe it is indeed a point...
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Make it or Break it
7楼2011-09-10 21:27:36
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lelisuode

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上帝的眉毛--碧落堂无忧阁阁 ...
引用回帖:
7楼: Originally posted by witch_girl at 2011-09-10 21:27:36:
maybe it is indeed a point...

I found a funny thing. Your touxiang and my touxiang is very very very ....ahahaha
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平面生活。立体思想
8楼2011-09-10 21:30:06
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witch_girl

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引用回帖:
8楼: Originally posted by lelisuode at 2011-09-10 21:30:06:
I found a funny thing. Your touxiang and my touxiang is very very very ....ahahaha

very what?

whatever, mine seems like yours' elder sister.
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Make it or Break it
9楼2011-09-10 22:11:45
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lelisuode

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引用回帖:
9楼: Originally posted by witch_girl at 2011-09-10 22:11:45:
very what?

whatever, mine seems like yours' elder sister.

10楼2011-09-10 22:13:17
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