黄河口滨外区矿物分布特征及其控制因素探讨

In winter, 1983, forty surface sediment samples were collected from the area off the Huanghe River Estuary, Huanghe and Luanhe Rivers,and the rivers in Northwestern Shandong Peninsula. The sediments off the Huanghe River Estuary are composed of biotite, hornblende, epidote,actinolite, tremolite, garnet, zircon, sphene, diopside, magnetite, ilmenite, hematite, apatite, hypersthene, schorl, monazite, topaz, muscovite,leucoxene, rutile, zoisite, clinozoisite, vesuvianite, kynite, wollastoite,enstatite, bronzite, xenotime, anatase, pyrrhotine, glauconite, quartz,orthoclase, plagioclase, calcite and authigenic pyrite. On the basis of their mineral assemblages, the investigated area may be divided into three mineral provinces. Huanghe River, Luanhe River and Longkuo mineral provinces. The materials were derived from the Huanghe River, Luanhe Delta and Northwestern Shandong Coastal Region respectively. The sands from the Huanghe River are different from other sources, and are characterized by high contents of biotite, muscovite, plagioclase and calcite, and but low contents of pyroxene, epidote, Zircon, garnet and orthoclase. During the flood periods the materials from the Huanghe River fall into the Laichau Bay and are transported towards NE direction, which has been formed main outline of the distribution minerals in the sediment off the Huanghe River Estuary. However, Rmode cluster analysis shows that the sorting of the detrital minerals in this area is not strong. The data of the measurement current and nutrient salt in the water support the conclusions which are obtained from mineralogy study.     

Fate of particle-reactive pollutants in the Xiamen Bay

INTRODUCTIONItiswel1knownthattheabilitytopredictthetransportationandfateofPOllutantsinthecoastalenvironmentsisimportanttothemanagementofmarineenvironments,toconservingma-rineorganismsandsafeguardinghumanhealth.ThegeochemicalbehaviourofPOllutantsinama-rineecosystemisgenerallygovernedbybiologicaldegradation,photodegradation,volatilization,waterexchange,incorPorationintosediments,etc.TheincorPOrationofPollutantsinestuarineorcoastalsediments,viaanassociationwithsettlingparticles,hasbeenrec…     

亚北极海区表层沉积物中多种金属离子的富集特征及影响因素

采用电感耦合等离子体质谱法(ICP-MS)对白令海北部、楚科奇海和加拿大海盆等亚北极海域表层沉积物中13种金属元素(Fe,Mn,Al,Co,Ni,Cu,Zn,Cd,Cr,Ba,Ag,Pb和U)的含量进行测定,结合富集系数(EF)和因子分析结果,探讨研究区的亚北极海域沉积物中各金属元素的可能影响因素。结果表明,在楚科奇海和加拿大海盆是Co,Ni,Cu,Zn,Cr,Ba,Ag,Fe,Mn,Al和Pb高值区,低值区大多出现在白令海北部;而U和Cd的高值区主要出现在楚科奇海北部,并表现出含量向加拿大海盆逐渐降低的趋势。EF分析结果显示:在目标海区的沉积物中Fe,Mn,Cu,Ag,Ba,Co,Ni和Pb未见富集;而Cr,Cd,Zn和U则表现出轻度富集。因子分析对于金属元素的聚类划分结果与通过EF计算对于金属元素富集程度的区分结果相吻合,因此Al,Mn,Co,Ni,Cu,Ag和Pb可能主要受到陆地岩石和土壤风化的影响;Cr,Cd和U主要受到陆源输入和人类活动影响,即人类活动是造成亚北极地区沉积物金属元素富集的重要原因;而Ba主要受生物活动影响;Fe和Zn不仅受自然来源和人为来源共同作用,还可能受到生物活动的影响。     

Study on the feeding habit and trophic level of main economic invertebrates in the Huanghai Sea

INTRODUCTIONTheHuanghaiSeaisrichwithfisheryspecies.Apartfromfishes,thereisagreatnumberofinvertebrates,ofwhichmanyareofcommercialimportance,playinganimportantroleintheHuanghaiSeafishery.Twogroupsofinvertebrates,CrustaceaandCephalopodawerelandedduringthetrawlsurveysintheHuanghaiSea.CrustaceaincludedPenaeusorientalis,Trachypenaeuscurvirostris,Crangonaffinis,Mitatynaeopsisdalei,Palaemongravieri,Portunustrituberculatus,Charybdisbimaculata,Oratosquillaoratoria,etc.andCephalopodainclucded…     

洄游的松江鲈鱼

正松江鲈鱼是上海松江的著名特产鱼类,其肉质细嫩洁白,味道极其鲜美,因此驰名中外,备受好评。三国演义中有段故事,曹操宴请宾客,满桌佳肴,唯独缺鱼,曹操着急万分,站在旁边的佑慈,急中生智,献出绝技,在墙上画些鱼,用口一吹,活蹦乱跳的鱼呈现在眼前,此鱼非凡,天下鱼都是两个鳃,此乃四个鳃,这种鱼便是被称为天下第一鱼的松江鲈鱼。松江鲈鱼貌不惊人,甚至于有点丑陋,但它的肉质洁白似雪,肥嫩鲜美,少刺无腥,食之能口舌留香,回味不尽,而且营     

Uplift Pressure of Waves on A Horizontal Plate

1 .IntroductionOwingtotheneedfordevelopingoffshoreresources,moreandmorehollow trussedstructuresareconstructed ,suchasalongshorequays ,islandquays,artificialislands ,bollards ,maritimeplatforms ,etc .Thelargeentitypartofthosemaritimestructuresusuallyconsistsofahorizontalplateabovethestillwaterlevel,anditusuallysuffersfromwaveattacksandthuscaneasilybedestroyed .Toavoidsuchakindofaccidents ,themostimportantistoaccuratelyevaluatetheupliftpressuresofwavesontheplateundervariouswaveconditionsandbound…     

千奇百怪的鱼类家族

地球上,有数万种鱼,它们相貌各异,习性不同,其趣闻轶事,指不胜屈,俯拾即是,不仿略作赘述,以一斑见全豹。生命奇观物竞天泽,道者生存,大自然赋予鱼类无比奇特的顽强生命力。蝾螈鱼:生活在澳洲西部大沙漠中,干旱少雨,一旦水坑中没水,会钻入地下潮湿处,深可达1米,     

珠江口海区悬浮物质的研究 Ⅳ.化学组成和变化

作者经过2个航次,采集了珠江干流和珠江口30个观测站的悬浮物质,通过X射线能谱(EDAX)分析,X射线衍射分析、原子吸收分析等,测定了其中的主要无机成分和微量金属Si,Al,Fe,K,Ca,Ti,Mg,P,S,Mn,Cu,Zn,Cr,Sr,Co等.研究了这些物质的化学组成和变化.通过研究,探讨了悬浮颗粒物质化学组成与环境因素之间的关系,引起化学组成变化的各种机制--物理机制、生物机制和化学机制.     

黄海沉积物硼、氟、铷、锶地球化学及地球化学分类

对黄海沉积物中B,F,Rb,Sr地球化学研究表明,B,F,Rb,Sr含量受沉积物粒度控制。B,F,Rb随沉积物粒度变小含量增高,富集于粘土矿物中;Sr则相反,富集于碳酸盐中。R型聚类分析表明,黄海沉积物元素基本可分为两大类,即与陆源碎屑有关的B,F,Rb等元素及与自生生物作用有关的Sr,Ca,Mn等元素。Q型聚类分析表明,黄海沉积物可分为三大类,一是现代细粒沉积物,二是残留粗粒沉积物,三为现代粗粒沉积物。     

A Finite Element Method for Cracked Components of Structures

1 .IntroductionOffshoreplatformsarelargescalesteelorconcretestructures.Theyexperiencevariouskindsofdamagessuchasdents ,corrosionpits ,cracks ,deformation ,etc .,afteryearsofenvironmentalimpactofwinds ,waves ,currents ,soilreactions ,earthquakesandice (DuanandLiu ,1 995) .Thesafetyofthestructureshasalwaysbeenthemostimportantissueconcerned ,anditdependsontheassessmentoftheintegrityofthestructures,orspecificallyontheassessmentofthedamagesinthestructures .Riclesetal.( 1 994)experimentallyinvestig…     

低云在不同季节对东海黑潮海洋锋响应的个例研究

本文采用高分辨率的CALIPSO(Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations)卫星资料,结合欧洲中心的再分析资料,在东海黑潮区域分别选取冬、春、夏季的典型个例,对比分析层积云、层云、海雾3种边界层云。分析结果显示,层积云发生在高空槽后,云顶1.2~2.5km,云底0.7~2km,云顶平滑度差,海气界面不稳定,地表偏北风,边界层不稳定,底层混合均匀,云层上方有逆温层存在;层云发生在高空槽前,伴有强烈冷平流,位于地面低压前部,云顶高度300~700m,较平滑,云底不接地,海气界面稳定,地表南风,边界层稳定,有不接地逆温,云区无下沉运动;海雾发生在高空槽后,低层有暖平流,地面位于高压中心,雾顶小于700m,底部接地,雾顶最为平滑,海气界面稳定,地表南风,风速很小,边界层稳定,逆温层很低,并伴有强烈下沉运动,地表相对湿度大于90%。黑潮锋通过影响海气边界层,进而影响低云的高度、形态等特性,三种低云高度自南向北均逐渐下降,在SST大梯度区有突变,海雾与低云性质相似,在一定条件下可以相互转化。     

开渔祭海

浩瀚大海,苍茫无垠,山岛竦峙,气象万千。纳百川而涵载五洲,育万物而生生不息。沿海百姓,依山傍海,耕海牧渔,周而复始,缘海而邑,兴旺发达,伟哉大海,恩泽万邦。然海洋虽大,宝藏虽富终有限度,资源虽足亦非不竭。涸泽而渔必致无鱼,取之无度必将无物。欲取先予,欲张先翕,定期休渔,休养生息,渔区尊奉,万民拥戴,人与自,和谐共存。     

YOUNG FISH DEVELOPMENTAL BIOLOGIST ANDBREEDING GENETICIST-GUI JIANFANG

GuiJianfang,male,borninJune281956inHuangmei,HubeiProvince,isProfessorofDevelopmentalBiologyandGenetics,SupervisorofM.Sc.andPh.Dcandidates,DeanoftheDepartmentofFishGeneticsandBreeding,MemberoftheAcademicCommitteeoftheInstituteofHydrobiology,ChineseAcademyofSciences.HegraduatedB.S.fromWuhanUniversityin1982andM.Sc.in1984,majoringinCellBiologyandGenetics.HehasworkedintheInstituteofHydrobiology,ChineseAcademyofSciences,since1985.HeworkedasaVisitingProfessorfrom1991to1992atMedicalC…     

MARINE GEOLOGIST──LI NAISHENG

LiNaisheng,borninJulyl957inShougUang,ShandongProvince,isResearchProfessor,DeputyDirectorofthelnstituteofOceanology,ChineseAcademyofScienees(IOCAS)'GraduatedfromtheDepartmentofMarineGeology,theOceanUniversityofQingdaoinl98lafterfouryear'sundergraduatestudyandfromIOCASinl985afterthreeyear'sgraduatestudy,heisamemberofeightinternationalandChineseSCentificsocieties,suchastheAmericanGeophysicalUnion(AGU),theDirectorofYouhBranch,ChneseSocietyofOceanologyandUmnology(CSOL),as~ng~bero…     

厄尔尼诺与影响福建的热带气旋

资料统计分析显示,ＥｌＮｉｎｏ年,影响福建的热带气旋较常年显著偏少,ＬａＮｉｎａ年,影响福建热带的气旋较常年偏多,ｔ检验表明,两者之间差异显著。其机制是,ＥｌＮｉｎｏ活动期间,西太平洋副热带高压强度大,位置偏南、偏西、ＩＴＣＺ位置偏南,热带气旋生成区对流活动弱,不利于热带气旋的生成和北上影响福建,ＬａＮｉｎｅ年,副热带高中度北,位置偏北,偏东,ＩＴＣＺ位置偏北,热带气旋生成区对流活动旺盛,有利于热     

Acta Oceanologica Sinica Article index to Vol.24 in 2005

Number1Page 1 14 31 39 46 60 76 86 95 101 107 115 125 134 CurrentsintheLuzonStraitduringthespringof2002:observationandcomputationbymodified inversemodel YUANYaochu,LOURuyun,LIUYonggang,SUJilan,WANGKangshan,CHENHong CalculationofcirculationintheSouthChinaSeaduringsummerof2000bythemodifiedinverse method YUANYaochu,LIUYonggang,LIAOGuanghong,LOURuyun,SUJilan,WANGKangshan NumericalstudyonthesummercirculationoftheupperSouthChinaSeaanditsestablishment CAIShuqun,SUJilan,LON…     

冲绳海槽有孔虫壳体的微量元素Sr,Nd同位素地球化学

钙质生物壳的微量元素组合和Sr,Nd同位素组成是识别海底混合源沉积物中生物源物质相对贡献的重要参数.冲绳海槽有孔虫壳体强烈富集Sr,P,Mn和Ba,富集Li,U,Th,Sc,Co,Pb,Zn,Cr,Rb,Y,Sb和轻稀土元素,弱富集V,Ga,Zr,Nb,Cd和中稀土元素,相对贫Ge,Mo,In,Sn,Cs,Hf,Ta,W,Tl,Bi和重稀土元素,海水中微量元素的背景含量和生物活动对微量元素的选择性吸收是有孔虫壳体中微量元素发生富集和贫化的主要机制,冲绳海槽有孔虫壳体的稀土元素配分模式与海水和太平洋有孔虫的有明显差异,表现出中稀土元素相对富集,并具有微弱的负Ce异常.有孔虫壳体的Sr,Nd同位素比值也与大洋海水不同,分别为0.709769和0.512162,前者略高于大洋海水,后者略低于大洋海水,表明冲绳海槽海水明显受大陆河水影响.     

A MONOGRAPH ON SEAWEED CHEMISTRY RESEARCH ACHIEVEMENTS—"SEAWEED CHEMISTRY

SeaweedChemistry',amonographwrittenbyProf.JIMing-hou,InstituteofOceanology,theChineseAcademyofSciences,andsubsidizedbySciencePublicationFund,hasbeenpublishedbySciencePressinMayl997.Prof.JIMing-houhasbeenstudyingseaweedchemistryforseveraldacades.Thus,hisbookiswrittenonthebasisofhisrichaccumularedpracticalexperienceandalargeamountofliterature.Thisbooknotonlyfillsagapinthisresearehfield,butalsogivesthereadersagoodframeworkforseaweedchemistry.Thebookoutlinesthechemicalcontents,distribution…     

寄生亚目的系统研究概况以及我国寄生亚目的研究展望

寄生亚目（Epcaridea）隶属于节肢动物门（Arthropoda）甲壳动物亚门（Crustacea）软甲纲（Malacostraca）等足目（Isopoda）,成体是甲壳类的专性外寄生动物,多附生于十足目的鳃室或腹肢间的腹甲表面。本亚目多为海生种类,极少数为淡水生活。大多数种在找到宿主前,先经历浮游期。据Kensley和Schotte统计寄生亚目有近800种,隶属于2总科11科约304属。关于寄生亚目的分类系统,学者们的争议较大。Bonnier主要根据寄主的不同,将寄生亚目分为2部分Bopyrinae和Cryptoniscinae,前者包含4科,分别为檐虱科Dajidae Giard＆ Bonnier,1887,软虱科Phryxidae Bonnier,1900,鳃虱科Bopyridae Rafinesque,1815,内虱科Entoniscidae Kossmann,1881;后者包含8科,分别为微虱科Microniscidae Bonnier,1900,半虱科Hemioniscidae Bonnier,1900,Cyproniscidae Bonnier,1900,Liriopsidae Bonnier,1900,囊虱科Asconiscidae Bonnier,1900,毛虱科Crinoniscidae Bonnier,1900,足虱科Podasconidae Bonnier,1900,Cabiropsidae Giard＆ Bonnier,1887。     

缢蛏微卫星序列分离及特性分析

分析了缢蛏(Sinonovacula constricta)基因组文库中微卫星序列的特性及微卫星引物的遗传特征.采用磁珠富集珐和PCR 筛选法,以CA15为探针,快速分离含有微卫星序列的阳性克隆.结果表明,在筛选的210个白色菌落中,得到58个微卫星序列,阳性克隆率为27.6%,核心重复序列为两碱基和三碱基的微卫星居多,其中完美型占39.7%,非完美型39.7%,复合型占10.3%,非完美型与复合型共存的占10.3%.微卫星重复次数主要集中在20～40次之间,占66%,最高为63次.除探针中使用的CA重复单元外,还观察到AG/TC,AT/TA,AAC/TTG,CAA/GTT,TGA,AAT,AGAA,GTTT/CAAA,AAAT/TTTA,TTTC,CCTA,TCTA,TCCC,TGCC,GTTTCT,CTGTT,CACACC,TATACA,TTTTG的重复序列.利用Primer Premier5.0设计引物24对,经过初步筛选得到适合的微卫星引物18对,为今后未知微卫星标记的开发,群体遗传结构的分析,优良品种的选育提供基础.