关键词： 澳大利亚   塑料颗粒   水域   污染物   《卫报》   海洋生物   人类  

摘要： 据英国《卫报》报道，一项新的研究发现，澳大利亚附近水域中每平方公里飘浮着多达4000多个小塑料颗粒，对海洋生物以及人类的生活造成了严重的威胁。

关键词： 海洋生物   白垩纪   侏罗纪   恐龙   动物  

摘要： 咦，那些在大海中畅游的奇怪生物难道是恐龙吗？原来是鱼龙和长颈龙，它们是类似于恐龙的大型海洋爬虫动物。这里聚集的是侏罗纪和白垩纪的海洋生物。我们要坐船去对面海岸上的终点处。从蓝色水域通行，白色波浪处不能通行!赶快出发吧!

关键词： 中国海洋   生物纤维   深海载人潜水器   开发   自主知识产权   深潜技术   大深度  

摘要： ＂蛟龙＂号是我国第一台自行设计、拥有自主知识产权的深海载人潜水器,在去年的下潜试验中,它不负众望,创造了下潜7000米的中国纪录。＂蛟龙＂号初出茅庐,就使我国成为继美、法、俄、日4国之后,第五个拥有大深度载人深潜技术的国家。而7000米的深度占地球海洋面积的99.8%,这意味着我国潜水器可在占世界上99.8%的广阔海域自由行动,

关键词： 乌贼   生物学   海洋生物   生活习性  

摘要： 一百多年前的一个清晨，平静辽远的海面上笼罩着一团化不开的浓雾，寂静中透露出令人毛骨悚然的阴森。

关键词： 海洋生物   新型产业   产业集群   生物医药   烟台市   创新型   山东省  

摘要： 烟台海洋生物医药产业集群入国家创新型产业试点 最近．山东省烟台市海洋生物与医药创新型产业集群在全国众多申报者中脱颖而出，被正式列入国家“创新型产业集群试点（培育）”。

摘要： The transmission of pathogens is a common consequence of animal food production. Marine salmon farms and their processing facilities can serve as sources of virulent fish pathogens;our study is the first to confirm the broadcast of a live fish pathogen from a farmed salmon processing facility into the marine waters of Canada's Pacific coast. We found live salmon lice Lepeophtheirus salmonis, mucus, and fish tissue in effluent from the processing facility. Sea lice transmitted from this source may pose a threat to wild salmon populations, and the release of untreated offal, including blood water, is of considerable concern. Further research is needed to quantify the extent to which processing facilities release sea lice and to determine whether more virulent fish pathogens are present in effluent. These data underscore the need for fish farming nations to develop mandatory biosecurity programs to ensure that farmed salmon processing facilities will prevent the broadcast of infectious fish pathogens into wild fish habitat.

关键词： 山东青岛   海洋经济   新兴产业   经济区   规划   蓝色   海洋生物   医用材料  

摘要： 7月9日，笔者在山东青岛博益特生物有限公司了解到，他们从海洋生物中提取壳聚糖生产的医用材料——止血愈创沙，投放市场后受到用户好评，其研发技术在行业内处于领先地位。

关键词： 海洋生物   酸化   CO2   水变   海洋生态系统   相对稳定   二氧化碳   工业革命  

摘要： 数千万年来，地球海洋一直保持着一个相对稳定的酸度。在这个稳定的环境中，丰富多彩的海洋生物欣欣向荣地生长和繁衍着。但是，这一古老的平衡正被海洋ph值的快速下降打破，海洋酸化将给全球海洋生态系统带来灾难性的后果。海洋酸化的罪魁祸首，是工业革命以来大量排放到大气并被海洋部分吸收的二氧化碳。

关键词： Radionuclides   Marine biopolymers   POC   COC   Biogenic particles   Thesis  

摘要： Natural radioisotopes, Th, Pa, Pb, Po and Be, have been used as important proxies in oceanographic investigations for decades. Biopolymers, produced by both phytoplankton and bacteria, play an important role in the scavenging of these radionuclides, thus regulating the particulate organic carbon (POC)/isotope ratios in different oceanographic regions, which have been used to calculate POC flux. To study the binding mechanisms of colloidal organic material to these radionuclides, marine colloids isolated by cross-flow ultrafiltration from seawater, together with dissolved exopolymeric substances (EPS) produced by laboratory cultured diatoms were collected. By separating, identifying and characterizing radiolabeled organic carriers, the most efficient binding of many of these nuclides likely occurs to acid polysaccharide- and Fe-related protein-containing biomolecules. To differentiate between uptake to amorphous silica or associated biopolymers, radionuclides were incubated with diatom cultures of Phaeodactylum tricornutum. Partition coefficients (K d ) of radionuclides to different fractions of diatom cells, and the role of diatom related biopolymers were examined. More than 50% of selected radionuclides were bound to all-inclusive biopolymer fractions, and logK d values of radioisotopes to whole diatom cells with or without silica frustules were similar, but logK d values for cleaned silica frustules were orders of magnitude lower. Results from isoelectric focusing showed the most efficient binding sites occurring in acid- polysaccharides and iron-binding proteins. As revealed by 2D HSQC NMR spectra, the biopolymers in the HF insoluble fraction were mainly composed of carboxyl-rich, aliphatic-phosphoproteins. The concentrations of potential carrier phases for radionuclides and their K d values were determined for particles collected by sediment traps deployed at the Oceanic Flux Program site off Bermuda. Chemical considerations, as well as factor analysis and corre

关键词： 海洋生物   少年读物  

ISBN: (纸本)756700576X

摘要： 农家少年大多都知道海洋对我们人类的意义，也有很大一部分农家少年自小就生活在海边，对海洋十分熟悉。但他们对这些形态各异千变万化的海洋生物的了解较少。目前，全世界的科学家正在进行一项空前的合作计划，为所有的海洋生物进行鉴定和编写名录。海洋里到底有多少种生