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Small eddies play a big role in feeding ocean microbes(图)     小漩涡  海洋微生物  亚热带环流       font style='font-size:12px;'> 2023/6/9
Subtropical gyres are enormous rotating ocean currents that generate sustained circulations in the Earth’s subtropical regions just to the north and south of the equator. These gyres are slow-moving w...
新西兰研究人员在海洋鱼类肌肉组织中发现微塑料     新西兰  海洋  鱼类  肌肉组织  微塑料       font style='font-size:12px;'> 2021/3/22
新西兰国家水事和大气研究所日前发布的一份研究显示,在新西兰周边海域采样的鱼类中,不仅鱼类内脏中有微塑料,甚至肌肉组织中也发现了微塑料成分。这项研究显示,鱼类吞食微塑料后,肠道会出现明显的炎症,影响鱼类消化系统等功能,最终可能影响其生存,损害程度随着微塑料浓度的增加而增加。
Extensive sea ice covered the world's oceans during the last ice age, preventing oxygen from penetrating into deep ocean waters and complicating the relationship between oxygen and carbon, a new study...
How hot is too hot for life deep below the ocean floor?(图)     How hot  life deep below  ocean floor       font style='font-size:12px;'> 2020/12/18
At what depth be-neath the seabed does it be-come so hot that mi-cro-bial life is no longer possible?An ex-ped-i-tion by In-ter-na-tional Ocean Dis-cov-ery Pro-gram scientists has provided new insight...
The sinking carcasses of fish from near-surface waters deliver toxic mercury pollution to the most remote and inaccessible parts of the world's oceans, including the deepest spot of them all: the 36,0...
Seagrasses restored to Virginia bays are flourishing(图)     Seagrasses restored  Virginia bays  flourishing       font style='font-size:12px;'> 2020/10/23
In the late 1920s, a pathogen began killing seagrasses in Virginia's seaside bays. A 1933 hurricane finished them off. For more than a half-century, the bay bottoms were muddy and barren. Gone were th...
Greenland Ice Sheet meltwater can flow in winter, too(图)     Greenland  Ice Sheet meltwater  flow  winter       font style='font-size:12px;'> 2020/4/17
Liquid meltwater can sometimes flow deep below the Greenland Ice Sheet in winter, not just in summer, according to National Science Foundation-funded research published in the American Geophysica...
NG:早期地球可能是一个水的世界(图)     NG  地球    海洋化学沉积物       font style='font-size:12px;'> 2020/4/29
海洋化学沉积物和蚀变洋壳记录了海洋的演变历史。过去的研究发现,海洋化学沉积物的18O/16O比值随时间推移而呈增加趋势,但人们对这一规律有不同的解读:一种可能是地球早期的海洋可能要比现代更为温暖(前提是地球早期海洋的氧同位素组成与今天相似);也有可能是地球早期水岩反应的性质与现代地球有所不同,从而导致海洋氧同位素组成的系统演变。一般而言,海底热液喷出时,高温水岩反应会使热液和海水更为富集18O同位...
A new study by National Science Foundation-funded researchers at the Woods Hole Oceanographic Institution and their colleagues found that freshwater runoff from rivers and continental s...
A new study by National Science Foundation-funded researchers at the Woods Hole Oceanographic Institution and their colleagues found that freshwater runoff from rivers and continental s...
Nature:近千年印度洋偶极子变化规律(图)     Nature  印度洋  偶极子  变化规律       font style='font-size:12px;'> 2020/4/29
印度洋偶极子(Indian Ocean Dipole, IOD)是指印度洋西部和东部海表温度差,通过海气耦合作用,对印度洋盆周围地区气候和环境产生重要影响。简单的类比,可以把IOD看作是印度洋的厄尔尼诺-拉尼娜现象。Saji et al.(1999)发现并定义了IOD事件(图1):当正IOD(positive IOD, pIOD)事件发生时,西印度洋海温偏高,东印度洋海温偏低,会导致印太暖池海温偏...
During the first study of the ocean floor beneath Antarctica’s Thwaites Glacier, scientists took images of the glacier's foundations. Thwaites now accounts for about 4% of global sea level rise, and r...
Dangers to ancient Antarctic ice portend a future of rapidly rising seas, but a new study, partially funded by NSF, may relieve one nagging fear. Meltwater ponds fracturing the ice below them may not ...
Antarctica's ice sheet spans close to twice the area of the contiguous United States. Its land boundary is buttressed by massive, floating ice shelves extending hundreds of miles out over the frigid w...
Study uncovers magnetic memory of European glass eels(图)     magnetic memory  European  glass eels       font style='font-size:12px;'> 2019/11/5
A new study led by NSF-funded researchers at the University of Miami Rosenstiel School of Marine and Atmospheric Science and the Institute of Marine Research in Norway found that European glass eels u...

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