蜕钩枝触星虫若干问题的讨论

文中对蜕钩枝触星虫Themiste dehamata(Kesteven,1903)提出三点补充:1、阐明了四条固肠肌的位置;2、发现纺锤肌前端为两分支:3、肾孔位于肛门的前方     

渤海海水中悬浮体的研究

陆源悬浮体是边缘海海底沉积物的主要来源.所以,悬浮体(suspended matter)的调查研究是解决边缘海海底沉积作用的一个重要环节.当我们研究河口附近海域以及海底沉积物的通量平衡过程时,也必须对悬浮体的分布及其数量变化等进行调查.     

Biochemical Mechanism of the Eutrophication and Its Prevention—the Deep Treatment of Waste Water and Its Denitrification and Dephosphorization

Biochemical mechanism of forming the red tide is discussed in this paper.The existence of a large number of nitrates and phosphates in the eutrophic water is the prerequisite of explosive increase of algae and the forming of red tide.Reduction of eutrophication is an important approach to preventing the red tide.The method of deep treatment of the waste water and its denitrification and dephosphorization are introduced,and a new opinion on the red tide formation and fundamental prevention is put forward.     

Effect of Temperature on the Fatty Acid Composition of Four Species of Marine Microalgae

For most aquacultured animals, the unsaturated fatty acids of marine microalgae have the effects of raising their rates of hatchability, survival and growth and the essential nutrients for the cultured animals such as fish and shrimp. Japanese and ROK scholars have reported that the algal powder added into the fish and shrimp bait may act as coagulating and anti-collapsing agents, and is especially effective if it is used in the water lacking minerals and vitamins[1]. Japanese scholars have p…     

杭州湾南岸潮滩的~(210)Pb分布及其沉积学意义

杭州湾南岸潮滩的~(210)Pb垂向分布具有随深度波动的特征。湖滩颗粒物在吸附模拟系统中的~(210)Pb分配系数,主要受颗粒物含量的影响。本文从潮滩沉积~(210)Pb初始比度在低于平衡点一侧波动的机理,以及被沉积间断所分隔的有效封闭段的存在出发,提出选择常态沉积层的高~(210)Pb比度窗口,建立以CIC模式估计潮滩沉积速率的方法。     

The stimulation on shedding reactions of sea urchins by K+ and Li+ immersion

INTRODUCTION Sea urchin is a marine animal of economic value. The gonad of Hemicentrotus pulcherrimus A. Agassiz and Anthocidaris crassispina A. Agassiz may be offered as food and medicine, the sea urchin shell may be used as fertilizer and artware and moreover, the sea urchin eggs are important materials for the studies in embryology and molecular biology. With the increasing exportation of sea urchins in China, the natural resources are gradually decreasing. In order to satisfy people's growing needs of sea     

厦门港水动力因素低频波动特征及其机制分析

本文根据历史水文气象资料，用条件谱分析方法，分析了厦门港水动力因素低频波动特征并探讨其发生机制。结果表明，低频波动清楚地表现为水位和表层盐度的波动。厦门港水位的低频波动主要源自平潭站的水位波动，风的贡献是次要的；条件谱分析了难以描述表层盐度低频波动和九江径流波动的复杂关系。     

波纹巴非蛤Paphia undulata精子发生的超微结构

本文在超微结构水平上,研究波纹巴非蛤精子发生过程中细胞形态结构的变化和细胞器的演变规律,以及成熟精子的形态结构。观察到精细胞核形态变化的特点和线粒体演变过程。尤其是精细胞变态过程中顶体的形成和中心体的移动。精子为典型的初生型。本文还讨论了双壳类成熟精子核型变化的种属间的差异。     

南海东北部台风潮的数值后报及极值增水估计

本研究对近40年来影响南海东北部陆架海区的28次台风引起的风暴潮进行了数值后报,其中8个过程的沿岸后报增水值与实测值进行了比较,表明后报值与实测值符合良好,90%以上的最大增水值偏差在30厘米以下。为了得出本海区多年一遇的台风增水极值,在后报台风路径密集处选择了9个不同水深点,对每点取出各次台风下的最大增水值,然后用Weibull分布进行拟合,得出了各点的极值分布。     

人工越冬对虾体内寄生纤毛虫——旋毛蟹栖拟阿脑虫,新亚种的记述

报导了从中国对虾(Penaeus orientalis Kishnouye)越冬亲虾血淋巴内分离的盾纤毛目纤毛虫一新亚种,隶属于嗜污科(Philasteridae)拟阿脑虫属(Paranophrys),系蟹栖拟阿脑虫(Paranophrys carcini)一新地理亚种,定名为旋毛蟹栖拟阿脑虫,新亚种(Paranophrys carcini spiralis subsp.nov.)。本工作对该亚种做了蛋白银染色、银浸法、孚尔根染色,以显示其银线系、纤毛下器及细胞核器,并结合扫描电镜对虫体形态作了观察与鉴定。文内对该亚种的形态学作了描述并列表比较了所在属诸种主要性状特征以及本新亚种与相似种在形态特征上的主要差别,以确定新亚种的成立。