搜索结果: 31-45 共查到“国际动态 海洋生物学”相关记录456条 . 查询时间(1.929 秒)
Microbial diversity below the seafloor is as rich as on Earth's surface（图）
Microbial seafloor rich Earth's surface
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2020/10/30
For the first time, researchers have mapped the biological diversity in marine sediment, one of Earth's largest global biomes. Although marine sediment covers 70% of Earth's surface, little was known ...
Ocean algae get 'coup de grace' from viruses--sometimes（图）
Ocean algae coup de grace viruses--sometimes
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2020/9/25
Scientists have long believed that ocean viruses quickly kill algae. But new U.S. National Science Foundation-funded research shows that viruses often live in harmony with algae, and that they pr...
Researchers track nutrient transport in the Gulf of Mexico（图）
nutrient transport Gulf Mexico
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2020/9/18
The Gulf of Mexico receives considerable levels of nutrients from the rivers that empty into it, especially the Mississippi River, causing the Gulf's northern waters to become overly enriched and more...
New tool for identifying endangered corals could help conservation efforts（图）
New tool identifying endangered corals conservation efforts
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2020/9/4
Coral conservation efforts could get a boost from a newly developed genotyping "chip" -- the first of its kind for corals.The chip allows researchers to genetically identify corals and the symbiotic a...
During coral mass spawning events, which are in sync with the moon's cycle, stony coral colonies simultaneously release an underwater cloud of sperm and eggs for fertilization. But how do the sperm an...
英研究首次考察大西洋内部微塑料含量：远远高于此前预期
英 大西洋 微塑料
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2020/8/19
微塑料是指所有尺寸小于5毫米的塑料纤维、颗粒或薄膜，广泛分布于海洋和陆地等各个环境介质中。微塑料可被生物吸收积累，产生生态风险和健康风险。然而在海洋等偏远地区，仍然缺乏微塑料积累系统的可靠量化数据，难以评估微塑料积累造成的生态和环境危害。当地时间8月18日，国际学术期刊《自然-通讯》发表的一项研究称，大西洋海面以下200米约有1200万吨至2100万吨微塑料。研究人员仅对大西洋中三种最常见的塑料进...
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...
A team at the Marine Biological Laboratory in Woods Hole, Massachusetts, has achieved the first gene knockout in a cephalopod using the squid Doryteuthis pealeii, an important research ...
Banks of Antarctica's Ross Sea offer rich food source for emperor penguins（图）
Banks Antarctica Ross Sea rich food source emperor penguins
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2020/8/14
A new U.S. National Science Foundation-supported study provides some of the most comprehensive evidence to date of the lengths penguins will go for a meal. The results were reported in the journa...
Deep sea microbes dormant for 100 million years are hungry and ready to multiply（图）
Deep sea microbes dormant 100 million years hungry ready to multiply
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2020/7/31
For decades, scientists have gathered ancient sediment samples from below the seafloor to better understand past climates, plate tectonics and the deep marine ecosystem. In a new study published in...
据英国《自然·通讯》杂志2020年7月28日发表的一项微生物学研究，日本科学家团队在能量最贫乏的深海沉积物中，发现有微生物群落维持了1.015亿年的代谢潜力。理论来讲，经过几百万年时间在海底沉积下来的沉积物，几乎没有能让细胞维持代谢活跃状态的能量。虽然科学家已经能够恢复沉积物中的微生物群落，但迄今尚不清楚它们是如何在如此恶劣的条件下生存以及究竟存活了多久。日本国立研究开发法人海洋研究开发机构（JA...
2020年7月22日发表在《自然》杂志上的一项对全球近20%珊瑚礁区域的调查显示，鲨鱼已在部分海域“功能性灭绝”，这是自有记录以来珊瑚礁鲨面临的最大的一次数量锐减事件。美国佛罗里达国际大学的海洋生物学家迈克·海特豪斯和戴米安·查普曼在5年前开始一项名为Global FinPrint的合作研究，旨在以标准化方式调查世界上所有的礁鲨（该物种比漫游公海的鲨鱼更易发现）。在五年的时间里，该团队对371个热...
Coral reefs are dying at an alarming rate as water temperatures rise worldwide as a result of climate change, pollution and human activities. In the last three decades, for example, half of Australia'...
基因技术帮珊瑚礁免受全球变暖影响（图）
基因技术 珊瑚礁 全球变暖
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2020/7/17
由于全球变暖、污染和人类活动，全球海水温度上升，珊瑚礁正在以惊人的速度死亡。在过去的30年里，澳大利亚大堡礁有一半已经失去了珊瑚覆盖。美国哥伦比亚大学的一项新研究表明，基因测序可以揭示造礁珊瑚在进化上的差异，有朝一日能帮助科学家确定哪些种类能适应温暖的海洋。
Desert algae shed light on desiccation tolerance in green plants（图）
Desert algae shed light desiccation tolerance green plants
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2020/7/10
Deserts of the U.S. Southwest are hot and dry -- extreme habitats for most plants -- but, remarkably, microscopic green algae that live there are extraordinarily tolerant of dehydration.These tiny gre...