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The Effects of ocean Acidification on Manila Clam Ruditapes Philippinarum

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The Effects of Ocean Acidification on Manila Clam Ruditapes ...

作者： Golam Rbbani 大连海洋大学

学位级别：硕士

The suitable culture environment is one of the determining factors of marine *** dioxide and other industrial affluent increasingly altering the environment through mixing with sea water resulting in *** poses a threat to the ecological landscape of intertidal ***,calcifying organism Manila clam Ruditapes philippinarum is particularly at high risk,as increased levels of atmospheric CO2 intensify the partial pressure in the *** clam,an important commercial species cultured in Asia,need to adapt in order to cope with the adverse effects of ocean acidification or else production may decrease *** order to get a better understanding of the effect of ocean acidification,we studied the transcriptomic response of manila clam using RNA sequencing and investigate the deleterious effect as well as clam resistance to the ocean acidification.p H 8.0,7.4 and wild population of manila clam were used in this study and 8.0 p H treated as the control *** clams were cultured for 3 months in the experimental condition with sufficient food ***,total RNA was extracted from each treatment group 8.0 and 7.4 p ***,c DNA libraries were prepared using Illumina Hiseq 2000 and total 378541600 clean reads were generated after sequencing where,197912472 reads were mapped with an average mapping efficiency of 51.204%.Approximately,27,652 genes were found to be affected by *** of all unigene to GO,KEGG,SWISSPROT and nr database using BLAST for functional annotation revealed alienation of 625,67,62 and 72 genes *** the affected genes,84 genes were expressed differently（q ＜ 0.005）between treatment and control group.A further comparison showed,48 genes were Up-regulated at low p H condition and 36 genes *** annotation of the differentially expressed genes in GO and KEGG pathway reveal diverse biological functions and *** to G

关键词： Ruditapes philippinarum ocean acidification

Pb, Sr AND Nd-ISOTOPIC COMPOSITIONS OF PALEO AND NEO-TETHYAN oceanIC CRUSTS IN THE EASTERN TETHYAN DOMAIN: IMPLICATION FOR THE INDIAN ocean-TYPE ISOTOPIC SIGNATURE

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地学前缘 2000年第S1期7卷 104-105页

作者： Xu Jifeng 1,Pateno R. Castillo 2[WT5,5”BX](1.Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Wushan, Guangzhou, 510640, China,E\|mail:jifengxu@*** 2.Scripps Institution of oceanography, University of California, San Diego, La

The isotopic signature of mid\|ocean ridge basalts (MORB) from the Indian ocean is different from that of MORB from the Pacific and North\|Atlantic oceans.. The Indian MORB is characterized by lower 206 Pb/ 204 Pb, hi gher 87 Sr/ 86 Sr, and lower 206 Pb/ 204 Pb for given 143 Nd/ 144 Nd than the latter (Hart, 1984; Castillo, 1988; Mahoney et al., 1998). Why the Indian ocean mantle domain is different from the Pacific and North\|Atlantic ocean mantle domain is still unclear. Two general classes of hypotheses have been proposed to explain the origin of Indian mantle (Mahoney et al., 1998). The first one is that the components of the Indian ocean mantle domain are a fairly young mantle end\|member created during the processes of breakup of the Gondwana continent to form the Indian ocean. The second hypothesis posits that the Indian MORB\|type isotopic signature is a long\|lived mantle domain that existed prior to the formation of the present Indian ocean. Thus it appears that one of the keys to a better understanding of origin of the Indian ocean\|type isotopic signature depends on its age. Although some studies (Mahoney et al., 1998; Weis and Frey, 1997) showed that the isotopic signature was as old as the Indian ocean crust (140Ma), basalts investigated in the Indian ocean region do not prove or disprove the existence of the Indian MORB\|type isotopic signature prior to the Indian ocean because they were taken from the Indian ocean basin itself.

关键词： Indian ocean Tethys ophiolite MORB mantle Pb\|isotope Nd isotope Sr\|isotope oceanic crust

ocean Disaster Reduction and Sustainable Development in the Region around Bohai Sea

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Natural Disaster Reduction in China 2000年第4期 36-41页

作者： YU Qingdong, CHI Kelian (Qingdao University, Qingdao 266071)

With the high speed development of the marine economy in the region around the Bohai Sea, a series of disasters that are mainly caused or aggravated by human factors have occurred. They are the severe environment pollution of partial marine area, salt water intrusion, coastal erosion, red tide, land surface subsidence, etc.. These human caused ocean disasters as well as natural ocean disasters that are mainly caused by natural factors, such as typhon, windstorm agitation, sea ice, etc., will influence and restrict the sustainable development of the marine resources and environment in this region. In this paper, their characteristics, causes and effects on the sustainable development of the Bohai region are discussed. In order to reduce the ocean disaster and to guarantee the sustainable development of the Bohai region, some countermeasures are suggested. A comprehensive exploitation plan of the Bohai Sea should be prerequisite. The management of the development of the Bohai region should be improved. The protection and renovation of the ocean environment should be strengthened. The construction of coastal engineering projects should be speeded up.

关键词： marine resources environment sustainable development ocean disaster Bohai Sea

ocean BOTTOM SEISMOMETER AND ONSHOREOFFSHORE SEISMIC EXPERIMENT IN NORTHEASTERN SOUTH CHINA SEA

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Geotectonica et Metallogenia 2004年第1期28卷 28-35页

作者： QIU Xuelin ZHAO Minghui YE Chunming WANG Tankai WANG Ping ZHANG Yixiang XIA Kanyuan LEE Chaoshing Key Laboratory of Marginal Sea Geology South China Sea Institute of Oceanology & Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou GD 510301China Laboratory of Marginal Sea Geology Chinese Academy of Sciences Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou GD 510640 China Institute of oceanology Chinese Academy of Sciences Qingdao SD 266071 China Guangdong Seismological Bureau Guangzhou GD 510070China Taiwan Ocean University Keelung 20224 Taiwan Key Laboratory of Marginal Sea Geology South China Sea Institute of Oceanology & Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou GD 510301China Key Laboratory of Marginal Sea Geology South China Sea Institute of Oceanology & Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou GD 510301China Key Laboratory of Marginal Sea Geology South China Sea Institute of Oceanology & Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou GD 510301China Taiwan Ocean University Keelung 20224 Taiwan

Three-component ocean Bottom Seismometers, portable land stations and marine air gun seismic sources were used to carry out an onshore-offshore deep seismic profile in northeastern South China Sea. This profile, orientated in NNW-SSE, was as long as 500 km and perpendicular to the strike of regional tectonics. The offshore data were processed in Taiwan ocean University using a number of available software and the onshore data were analyzed in South China Sea Institute of oceanology by new-written programs and public software. Preliminary results show that the seismic data are in good quality and contain rich information of deep structure. Seismic phases, e.g. Pg, PmP and Pn, are identified in the offset range 5～220 kin, which will provide an important dataset for the deep crustal structure and oil-gas basin evolution studies of this region.

关键词： Northeastern South China Sea ocean bottom seismometer (OBS) onshore-offshore seismic experiment deep crustal structure

ocean Wave Model and Wave Drift Caused by the Asymmetry of Crest and Trough

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Open Journal of Marine Science 2017年第3期7卷 343-356页

作者： Jin-Liang Wang Hui-Feng Li Research Institute for ESMD method and Its Applications College of Science Qingdao University of Technology Shandong China

It follows from the review on classical wave models that the asymmetry of crest and trough is the direct cause for wave drift. Based on this, a new model of Lagrangian form is constructed. Relative to the Gerstner model, its improvement is reflected in the horizontal motion which includes an explicit drift term. On the one hand, the depth-decay factor for the new drift accords well with that of the particle’s horizontal velocity. It is more rational than that of Stokes drift. On the other hand, the new formula needs no Taylor expansion as for Stokes drift and is applicable for the waves with big slopes. In addition, the new formula can also yield a more rational magnitude for the surface drift than that of Stokes.

关键词： Wave Model Stokes Drift ocean Surface Wave Gerstner Wave Wave Slope Breaking Criteria

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ocean Guardian

Beijing Review 2021年第46期64卷 42-43页

作者： Lu Yan 不详

A Chinese scientist promotes marine ranching for ecological restoration Recalling the days of working on the ocean,Chen Yong,65 years old,still has fresh memories."It was a difficult job working on the *** I,who major... 详细信息

关键词： ocean marine Guard

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ocean Sandwioh

小学生时代（大嘴英语） 2023年第7期 30-31页

作者： Alan Watson John Sandford(图) 不详

They say the ocean's filled with *** sea to shining ***'s something called a jellyfish,How tasty can that be?Before I get my knife and bread,Before I get my dish,Can anybody help me find The peanut-butter-fish?

关键词： ocean filled something

oceanic Excitations on Polar Motion Determined from ocean Circulation Models and Satellite Altimetry

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Oceanic Excitations on Polar Motion Determined from Ocean Ci...

Mutual Influence of the Atmosphere and the ocean under Wave Processes

作者： CHEN J.L. WILSON C.R HU X.G. ZHOU Y.H. Center for Space Research University of Texas at AustinAustinTX 78712USA Center for Space Research University of Texas at AustinAustinTX 78712USA Depattraent of geological SciencesUniversity of Texas at AustinAustinTX 78712USA Shanghai Astronomical Observatory Chinese Academy of SciencesShanghaiChina

We estimate oceanic excitations on polar motion using outputs from a data assimilating ocean general circulation model (OGCM) and satellite radar altimeter observations. The data include OGCM estimates of variations in ocean bottom pressure (OBP) and meridional and zonal velocities. Sea level anomalies from TOPEX/Poseidon (T/P) satellite altimeter measurements and steric sea surface height changes deduced from the model are also used to estimate OBP effects. The results are compared with observed polar excitations not accounted for by the atmosphere, and with results from previous studies. Estimated oceanic contributions from both the data-assimilating OGCM and T/P altimeter show considerably better agreement with polar motion observations compared with previous results based on non-data -assimilating and earlier T/P data. The improvement is particularly signitficant at intra-seasonal time scales. Both OBP and ocean current variations provide important contributions to seasonal polar motion. At intra-seasonal time scales, the oceans appear to be a dominant contributor to residual polar motion not accounted for by the atmosphere. The oceans also play an important role in seasonal excitation. Combined OBP and ocean current contributions explain much of the residual semiannual variability.

关键词： Polar motion Excitation ocean OGCM Satellite altimeter

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Journal of Modern Physics 2021年第9期12卷 1346-1365页

作者： Vladimir G. Kirtskhalia Konstantin R. Ninidze Vekua Sokhumi Institute of Physics and Technology Tbilisi Georgia Sokhumi State University Tbilisi Georgia

The article solves the problem of surface gravitational waves using the theory of tangential discontinuity between media: air-water. Using the improved equation of mass continuity and taking into account the atmosphere inhomogeneity in the gravitational field of the Earth, it is shown that during wave processes, these two media mutually influence each other, which explains the reason for the formation of a stormy condition over the ocean and the drop in atmospheric pressure before the storm. The mechanism of the formation of the “killer wave” has been established and thus the “greatest mystery of nature” has been solved. The scale of wind and tsunami wavelengths has been established.

关键词： Atmosphere ocean Gravitational Waves Waves of Wind Tsunami Waves Killer Wave