| 查看: 979 | 回复: 17 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
[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. |
回复此楼» 猜你喜欢
一志愿华中农业071010，320求调剂
已经有4人回复
-
药学求调剂
已经有13人回复
-
求调剂推荐
已经有4人回复
-
290调剂生物0860
已经有40人回复
-
085400电子信息类（川大控制工程）求调剂可跨专业 求老师联系
已经有6人回复
-
材料工程281还有调剂机会吗
已经有42人回复
-
273求调剂
已经有6人回复
-
药学305求调剂
已经有6人回复
-
求调剂学校
已经有12人回复
-
山东省基金2026
已经有8人回复
witch_girl
金虫 (文坛精英)
- ESEPI: 53
- 应助: 0 (幼儿园)
- 贵宾: 0.903
- 金币: 1333.9
- 散金: 15217
- 红花: 105
- 沙发: 52
- 帖子: 14445
- 在线: 1679.7小时
- 虫号: 857925
- 注册: 2009-09-27
- 专业: 信息处理方法与技术
- 管辖: English Cafe
5楼2011-09-10 18:25:24
yinjuanchen
铁杆木虫 (著名写手)
- 应助: 1 (幼儿园)
- 金币: 5909.8
- 散金: 397
- 红花: 23
- 帖子: 2881
- 在线: 434.7小时
- 虫号: 961438
- 注册: 2010-03-04
- 性别: MM
- 专业: 无机材料化学
4楼2011-09-10 17:11:40
asymmetry
荣誉版主 (知名作家)
皇家神龍教-asymmetry
-
专家经验: +6 - 应助: 163 (高中生)
- 贵宾: 6.675
- 金币: 8625.6
- 散金: 5168
- 红花: 134
- 沙发: 326
- 帖子: 9016
- 在线: 543.3小时
- 虫号: 282742
- 注册: 2006-09-24
- 性别: GG
- 专业: 有机合成
- 管辖: 文献求助
6楼2011-09-10 20:43:00
witch_girl
金虫 (文坛精英)
- ESEPI: 53
- 应助: 0 (幼儿园)
- 贵宾: 0.903
- 金币: 1333.9
- 散金: 15217
- 红花: 105
- 沙发: 52
- 帖子: 14445
- 在线: 1679.7小时
- 虫号: 857925
- 注册: 2009-09-27
- 专业: 信息处理方法与技术
- 管辖: English Cafe
7楼2011-09-10 21:27:36
