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。     

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,     

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.     

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。     

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…     

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     

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     

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…     

Uplift Pressure of Waves on A Horizontal Plate

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

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。     

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。     

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…     

琉球群岛以东海域表层沉积物元素地球化学特征

对琉球群岛以东海域134个站位表层沉积物的化学元素含量进行了系统测试,结合矿物学资料等,对研究区的表层沉积物元素地球化学特征进行了分析。结果表明:(1)琉球群岛以东海域沉积物具有半深海沉积物的地球化学特征;(2)通过元素因子分析,把25种元素或氧化物分为4种组合,每一种组合对应不同的物质来源,分别为陆源成因组合(SiO2,K2O,Zr,TiO2,Y,Sc,Na2O,La,Al2O3,P2O5,Ce),生物成因组合(Sr,CaO,L.O.I,CaCO3),火山源成因组合(MgO,V,Fe2O3,Cr,Li,Co),自生源成因组合(Ni,MnO,Cu,Ba);(3)控制本区元素分布的因素主要是水深、物质来源以及生物和铁锰物质的自生作用。     

Effects of biogenic amines on the testicular development in mud crabs Scylla serrata

1 IntroductionBiogenicamine, oneofim portantbioactivesub-stancesin crustaceans,participatesin extensivephysi-ologicalactivities, suchastegum entarycolorchange,m olting,m usclecontraction,glucidem etabolism,etc.(Fingerman etal.,1994).Furthermore,ithasbeen …     

来自山东渔船检验局的调查报告

近年来,山东渔船检验局按照省厅“认清新形势,迎接新挑战,创造新业绩,迈向新世纪”的总体要求,立足于抓班子,带队伍,内强素质,外塑形象,充分发挥自身职能,用好用足用活国家有关检验工作的政策规范。他们不但严格检验把关,采取有力措施,规范渔船产品市场,还转变思想观念,在产品检验工作上深化改革,大胆创新,利用部门的信息和技术优势,帮助和支持企业研制开发和推广船用新产品,走与企业共同发展的道路,取得了突破性进展。使山东的船用产品生产一跃成为全国的强省,促进了山东渔船修造、海上捕捞及相关行业的发展,取得了可…     

大港油田中103-1井区压裂改造工艺技术

针对北大港复杂断块油田地质条件复杂,渗透率低,断层发育,断块小,层间差异大,储层低孔、低渗,地层能量不足,层多且薄,压裂过程中易形成窄裂缝,断层性质不清楚,试油具有一定的产能,产量递减快等特点,提出一套具有国内领先水平的复杂断块压裂改造工艺技术。在压裂液方面,研制了新型无残渣压裂液;工艺方面,通过压裂工艺设计优化,采用低起步、大排量、线性加砂压裂工艺,应用测试压裂技术,提高工艺设计适应性,达到改善压裂效果的目的,实际应用效果明显。