搜索结果: 1-15 共查到“国际动态 理学 Oceans”相关记录26条 . 查询时间(0.062 秒)
When glacial ice sheets melt, something counterintuitive happens to sea levels. Logic might suggest that nearby levels would rise, but instead they fall.
New analysis highlights importance of groundwater discharge into oceans（图）
importance groundwater discharge into oceans
2021/1/28
An invisible flow of groundwater seeps into the ocean along coastlines all over the world. Scientists have tended to disregard its contributions to ocean chemistry, focusing on the far greater volumes...
Warm oceans helped first human migration from Asia to North America（图）
Warm oceans first human migration Asia to North America
2020/12/31
New research reveals significant changes in the circulation of the North Pacific Ocean and their impact on the initial migration of humans from Asia to North America.The U.S. National Science Fou...
As humans continue to send large quantities of carbon into the atmosphere, much of that carbon is absorbed by the oceans. Now researchers from the University of Connecticut and other institu...
The most common organism in the oceans harbors a virus in its DNA（图）
organism oceans harbors virus DNA
2020/6/5
The most common organism in the oceans, and possibly on the entire planet, is a family of single-celled marine bacteria called SAR11. These drifting organisms look like tiny jelly beans and have evolv...
Algae-killing viruses spur nutrient recycling in oceans（图）
Algae-killing viruses nutrient recycling oceans
2019/10/23
Scientists have confirmed that viruses can kill marine algae called diatoms, but diatom die-offs near the ocean surface may provide nutrients and organic matter for recycling by other algae.Diatoms ar...
Marine Reserves a Solution to Bycatch Problem in Oceans（图）
Marine Reserves Bycatch Problem Oceans
2017/9/4
Commercial fishermen may be able to catch more of the profitable fish they want with marine reserves than without them, according to a study in the journal PNAS led by the University of California, Da...
World Oceans Day:How do snook survive cold spells in Everglades waters?By heading for the depths
World Oceans Day snook survive cold spells Everglades waters heading for the depths
2017/7/21
Find related stories on NSF's Environmental Research and Education (ERE) Programs at this link. Find related stories on NSF's Long-Term Ecological Research Program at this link.When a cold s...
World Oceans Day:Marine diseases hidden beneath the waves incur high economic,ecological costs
World Oceans Day Marine diseases hidden high economic ecological costs
2017/7/21
Find related stories on the NSF, National Institutes of Health and U.S. Department of Agriculture's Ecology and Evolution of Infectious Diseases (EEID) program
It's World Oceans Day this week, b...
Decades of Data on World’s Oceans Reveal a Troubling Oxygen Decline
Decades of Data World’s Oceans Oxygen Decline
2017/7/19
A new analysis of decades of data on oceans across the globe has revealed that the amount of dissolved oxygen contained in the water – an important measure of ocean health – has been declining for mor...
Mollusk graveyards are time machines to oceans' pristine past
Mollusk graveyards time machines oceans pristine past
2017/3/14
A Florida Museum of Natural History study shows that mollusk fossils provide a reliable measure of human-driven changes in marine ecosystems and shifts in ocean biodiversity.Collecting data from ...
World Oceans Day:Coral reefs falling victim to overfishing,pollution fueled by climate change
World Oceans Day Coral reefs falling victim overfishing pollution fueled climate change
2016/6/12
The following is part 20 in a series on the National Science Foundation (NSF)'s Environmental Research and Education (ERE) programs. See parts one, two, three, four, five,...
World Oceans Day:Deltas critical to food production,fisheries health,storm protection
World Oceans Day Deltas food production fisheries health storm protection
2016/6/12
Delta: A place where sediment carried downstream by a river enters the sea, forming a fan of sand or mud.Although deltas make up just 1 percent of the world's land, they're home to more than half a bi...
World Oceans Day:Bring the seas into your home;exploration is one click away
World Oceans Day seas into your home one click away
2016/6/12
In the years after the HMS Challenger set sail from Portsmouth, England, in 1872, researchers made discoveries that laid the foundation of the science of oceanography. These scientists could...
Warmer,lower-oxygen oceans will shift marine habitats
Warmer lower-oxygen oceans marine habitats
2015/6/18
Modern mountain climbers typically carry tanks of oxygen to help them reach the summit. It’s the combination of physical exertion and lack of oxygen at high altitudes that creates one of the biggest c...