厦门西港表层沉积物中DDTs，HCHs和PCBs的含量与分布

对厦门西港表层沉积物中有机氯农药和多氯联苯的含量与分布进行调查研究。含量范围：ＨＣＨｓ为０．１４－１．１２ｎｇ·ｇ（－１），ＤＤＴｓ４．４５３１１ｎｇ·ｇ（－１），ＰＣＢｓ０．０５—７．２４ｎｇ·ｇ（－１）。与香港维多利亚港表层沉积物含量进行比较，厦门西港表层沉积物的ＰＣＢＳ含量低于维多利亚港，ＤＤＴｓ含量则高于维多利亚港。     

厦门湾水体中铀、钍同位素及悬浮颗粒物的粒径谱--颗粒物采集方法的影响

运用增强型混合纤雏素(CN-CA)膜、聚碳酸酯膜和聚丙烯滤芯过滤3种不同的方法采集、研究厦门湾水体中悬浮颗粒物(SPM)及其U、Th同位素的粒径谱．发现3种方法所得SPM总浓度和U、Th各同位素的总比活度具有很好的一致性,但粒级分布存在差异．SPM的浓度随粒径的增大而增加,并且SPM的粒径谱控制着颗粒活性很强的4种钍同位素的拉径谱．对于所研究的3种方法,采用聚碳酸脂膜过滤是研究沿岸海域SPM及颗粒活性核素粒级分布比较理想的方法。     

Studies on filtration rate in four species of suspension feeding bivalves

The filtration rates of four kinds of bivalves that were cultivated dominantly around Xiamen sea area were measured by using a laboratory flowing system. The experimental results were shown below: (1) Filtration rates were measured in the range of 54 - 74.8 ml/ (g·min) among the four bivalves , sequencing descently Saccostrea cucullata > Sinonovacula constricta > Mytilus viridis > Rudi-tapes philippinarum. (2) The relationship between filtration rates on individual size showed a negative exponential function (FR = aW~b, FR' = aW~(b-1)), with b - 1 =- 0.435 6 and -0.392. (3) Filtration rates on Skeletonema costatum were much higher than on Alexandrium tamarensis and Scripp-silla trochoidea inS. cucullata and R. philippinarum. (4)FR'on algal densities was also shown a negative function (FR' = aD~(b-1)), with b -1 =- 0.143 and -0.215 2 in S. cucullata and R. philippinarum , respectively.     

几种海洋浮游动物染色体初步研究

采用秋水仙素溶液浸泡，空气干燥，Ｇｉｅｍｓａ染色等方法对火腿许水蚤Ｓｃｈｍａｃｋｅｒｉａ ｐｏｐｌｅｓｉａ，太平洋纺锤水蚤Ａｃａｒｅｔｅａ ｐａｃｉｆｉｃａ（桡足类），百陶箭虫Ｓａｇｉｔｔａｂｅｄｏｔｉ（毛颚类）和厦门隔膜水母Ｌｅｕｃｋａｒｔｉａｒａ ｈｏｅｐｐｌｉｉ（水母类）等海洋游动物染色体的数目和形态作了初步分析。结果表明：火腿许火蚤染色体数目为２ｎ＝２４，太平洋纺锤水蚤２ｎ＝２０，百陶箭虫     

初析赤潮成因研究的围隔实验结果──几个理化因子与硅藻赤 潮的关系

从１９９０年以来，在国家海洋局第三海洋研究所地临陆基水池中，应用围隔生态系实验技术对赤潮成因作了几次探索性的研究。针对４次人为引发赤潮的中尺度围隔实验的部分结果，结合已报道的厦门西海域赤潮过程，分析几个主要理化因子（水体稳定性，无机氮，无机磷，可溶性锰锰，可溶性铁和维生Ｂ１２）与硅藻赤潮发生及其规模的关系。     

Ecological characteristics of phytoplankton community from eutrophic waters in the Maluan Bay

I~IOWTheMaluanBayisashallowandmOStlyendedwatertheywhichisisolatedfromwesternXiamenhaforbyaseawall.Thebayhaslongbenboldingagreatdealofagriculturalandindustrialwaterandmunicipalsewage.Moreover,aquacultureindustryhasbeendeveloppedinal~aceinthebayinrecen...     

厦门东侧水道海域的初级生产力

厦门东侧水道海域水体叶绿素a年平均值为 2 .79mg/m3,变化于 0 .64～ 8.0 1mg/m3之间 ;初级生产力年平均值为 2 61mg/(m2 ·d) ,变化于 1 5～ 52 5mg/(m2 ·d)之间 .叶绿素a含量以春、夏高 ,秋、冬低为特征 .初级生产力以春、秋高 ,夏、冬低为特点 ,季节差异较明显 ,尤其春、冬季的差别较显著 .研究结果表明该海域具有较高水平的叶绿素a含量和初级生产力 ,这与该海区地处亚热带 ,水温高、光照充足 ,营养盐比较丰富有关 .     

沿海生态城市的海洋指标体系研究——以厦门市为例

生态城市是21世纪城市发展的模式.海洋指标体系可以指导沿海生态城市的建设,促进沿海城市的海洋资源与环境管理.本文剖析了生态城市的内涵,提出了生态城市的内涵包括健康、安全和发展.其中健康包括活力和结构;安全包括暴露水平、敏感性和恢复力;发展包括发展的潜力和协调能力.论述了生态城市指标体系构建的原则和结构;在此基础上,以厦门市为例,构建了沿海生态城市的海洋指标体系,讨论了指标体系构建的一些关键问题.     

东沙海区海丘发现多底栖方式深水珊瑚

东沙岛周围海区发育众多深水(200~2 000 m)海丘,其中一些显示了明显的泥火山活动特征。近年的取样调查在多个底质差异明显的海丘都发现了非常丰富的深水珊瑚。为什么这些海丘上深水珊瑚兴盛尚不清楚。根据样品形态分析,初步识别的珊瑚既有以基座紧密固着于碳酸盐岩结核硬底的Madrepora oculate(多眼筛孔珊瑚)、Lochmaeotrochus(灌丛珊瑚)、Enallopsammia(突出海沙珊瑚)、Solenosmilia variabilis、Dendrophyllia(树珊瑚)、 Bamboo Coral (竹节珊瑚)、Golden Gorgonians (金柳珊瑚),还新发现有以鸭蹼状凹凸不平形底壳贴附于海底砂泥级生物碎屑的Desmophyllum dianthus(葵珊瑚)和尖底浅植于碎屑沉积中的Flabellum(扇珊瑚)、Crispatotrochus(卷轮珊瑚)、Balanophyllia(栎珊瑚),还有饼形、杯形能在软质海底缓慢自由移动的Fungiacyathus(蕈杯珊瑚)、Deltocyathusi(角杯珊瑚),指示在底质硬度及海流强度迥异的东沙海丘环境中有多种属珊瑚生长。大量具有机动性的深水珊瑚栖居于弱水动力海底,应更多依赖于栖居地本地而非海流带来的丰富食物,意味着东沙海区的泥火山活动泄漏的烃类流体可能是深水珊瑚食物的主要来源。泥火山的流体活动与珊瑚的兴盛可能具有相互指示意义。     

Geochemistry of waters associated with the old mine workings at Fonte Santa (NE of Portugal)

The quartz veins containing scheelite from Fonte Santa mine cut the Lower Ordovician quartzites. A muscovite–biotite granite (G1) and a muscovite granite (G2), both S-type, crop out close to the Fonte Santa mine and are related to the Moncorvo–Bemposta shear zone. The most altered samples of G2 show intense muscovitization and microclinization and contain chlorite, columbite–tantalite, wolframite, W-ixiolite and Fe-oxides. The tin-bearing granites contain 18 ppm (G1) and 73 ppm (G2) Sn. The most altered samples of G2 correspond to a tungsten granite. The quartz veins contain muscovite, chlorite, tourmaline, scheelite, pyrrhotite, pyrite, sphalerite, chalcopyrite, galena, arsenopyrite, iron oxides, Fe sulfates, phosphates of Pb, Fe and Al. The Fonte Santa mine area was exploited for W between 1942 and 1982. At the end of November 2006, a flood event damaged the tailings dam of Fonte Santa mine, releasing contaminated material and increasing contaminant levels in water within the area of influence of the mine. The waters related to the Fonte Santa mine are poorly mineralized, with electrical conductivity of < 965 µS/cm, and of a mixed type or HCO₃⁻ and SO₄²⁻ types. Most pH values (5.0−8.5) indicate that there is no significant acidic drainage in the region, as found in other areas. More acidic values (pH = 3.4) were found in the mine's lagoon. Waters associated with mineralized veins and old mine activities have Fe and Mn concentrations that forbid their use for human consumption and agriculture. Natural Na, Mg and K water contents are associated with the alteration of albite, chlorite and muscovite of country rock, while Ca with the W-bearing quartz veins. Weathering agents are carbonic and sulphuric acids and the latter has a strong influence in areas draining fine-grained mine tailings.