台中-厦门直航航路的海象特性

以台湾海峡为范围,收集台中、厦门航路的卫星观测数据,建立风速与浪高对应关系.该航路于东北季风时期,海象为5～7级风、5～6级浪,较西南季风时期明显高出二级,属恶劣航行季节；全年中335天浪高低于4m,若以4m浪高作为耐波极限,建议选择5000 t以上钢体结构船作为适航船舶.     

Lysosomal membrane fragility and catabolism of cytosolic proteins: evidence for a direct relationship

Summary A direct relationship was established between the stability of the lysosomal membrane and an estimate of cytosolic protein catabolism, based on loss of radiolabel from prelabeled protein. Lysosomes in the lysosomally-rich digestive cells of the midgut gland of the marine mussel (Mytilus edulis) were destabilized by experimental treatment with phenanthrene.     

塔里木盆地海相源岩的干酪根红外光谱特征

本文主要分析了塔里木盆地海相源岩的干酪根红外光谱特征,并与陆相源岩和煤的干酪根红外光谱进行了比较。研究证明红外光谱法可有效地应用于海相源岩的研究,主要解决源岩有机质的来源或类型和成熟度等问题,为源岩生油潜力的预测和源岩对比提供有价值的资料。图2,表1,参7。     

从海洋沉积物分离的产抗菌素和环肽的放线菌

从海洋沉积物分离的产抗菌素和环肽的放线菌周世宁姜广策吴雄宇林永成（中山大学生物化学系／应用化学系，广州５１０２７５）关键词抗菌素，环肽，放线菌，海洋微生物分类号Ｑ９３从陆地微生物寻找抗菌素药物的成功率已大大下降，而海洋微生物作为药物的新来源，正受到世...     

End-Permian catastrophic event of marine acidification by hydrated sulfuric acid: Mineralogical evidence from Meishan Section of South China

The event Permian-Triassic boundary (EPTB) is well marked by the famous “white clay” of bed 25 in Meishan Section located in Changxing county, Zhejiang province of China. In this note, the white clay as well as its overlying and underlying sequences is investigated particularly for mineralogical records. The investigation yields three findings that contribute to better understanding the scenario of the EPTB mass extinction. (i) A red goethite-rich microlayer (0.3 mm) is first recognized to be horizontally widespread on the base of the white clay in the section. The microlayer should be considered as a macro geochemical indicator naturally tracing a catastrophic initiation at the EPTB. (ii) An interruption of marine carbonate deposition is discovered due to blank of carbonate minerals in the white clay. The discovery provides significant evidence of a marine acidification event that would occur in the paleo-ocean with marine acidity estimated at pH <4.0 at least and be triggered by the ultimate catastrophic event. (iii) Gypsum as typical sulfate mineral is identified to exist in the white clay with high abundance (34%). The fact reveals that hydrated sulfuric acid would be present at the bottom of the ocean and thus chemically create the marine acidification event. Furthermore, it is suggested that the marine acidification event could not only directly kill some marine biotic species but also result in some derivative events such as the benthic anoxia and the temporal global temperature-increase during the EPTB mass extinction.     

Possible origin of zeaxanthin in the marine sponge,Reniera japonica

As part of a study to clarify the origins of biologically active substances in marine sponges, the carotenoids produced by two species of marine bacteria,Flexibacter sp. strain number DK30213 and DK30223, associated with the marine sponge,Reniera japonica, were investigated. Both bacteria were found to produce zeaxanthin [(3R, 3R)-dihydroxy-,-carotene] which is widely distributed in marine organisms. This carotenoid was also detected in the host sponge, suggesting the transport of zeaxanthin from the microorganisms to the host. As zeaxanthin plays the role of a quencher and scavenger for active species of oxygen, it is presumed that the sponge accumulates the bacterial product as a defense substance against the active oxygen species produced under irradiation by strong sunlight. It is thought that the bacteria are symbionts of the host sponge and act by obtaining the solid substrate and medium needed for settlement and growth from the host, and by producing and transmitting the biologically active substance to the host. Zeaxanthin-producing bacteria are also considered to have potential for practical uses by the aquacultural, pharmaceutical and food industries.     

Kinetic study of the hydrocarbon generation from marine carbonate source rocks characterization of products of gas and liquid hydrocarbon

The kinetic parameters of hydrocarbon generation from the marine carbonate source rocks were determined and calibrated through kinetic simulating experiment. The kinetic parameters of hydrocarbon generation then were extrapolated to geological condition by using the relative software. The result shows that gaseous hydrocarbons (C_1, C_2, C_3, C_(4-5)) were generated in condition of 150℃相似文献   

海洋渔业社会的和谐发展

沿海地区对渔业资源的过度开发导致了渔业社会发展缓慢，渔区现代化受阻，社会矛盾突出。要实现海洋渔业社会协调发展，必须树立人海和谐的理念，合理配置渔业资源，引导渔民转产转业。     

渤海驴驹河水域海洋真菌的分离及初步鉴定

以渤海湾驴驹河站位点10 m等深海水及底泥为样本,水样经滤膜过滤富集培养,底泥经稀释分离后,对孢子进行反复划线分离,筛除相同菌落后,共得到7个不同菌株,编号为BH01～07.经鉴定,分别为木霉属(Trichoderma Pers.ex Fr.)2种,青霉属(Penicillium Link)3种,曲霉属(Aspergillus Micheli)2种.首次阐明了渤海湾驴驹河水域海洋真菌分布的主要类群,其中,皱褶青霉(Penicillium rugulosum)系的两个菌株以及赭曲霉(Aspergillus ochraceus Wilh.)为渤海湾水域初次报道的真菌种类.     

纤毛虫摄食对浮游植物光合色素降解规律的初步研究

在实验室培养条件下,运用基于HPLC（高效液相色谱）的色素分析技术,以叶绿素a和主要类胡萝卜素的降解产物为指示,研究了海洋纤毛虫摄食微藻过程中对光合色素降解的影响以及降解规律.研究发现了对纤毛虫摄食活动有潜在指示意义的特征指示色素Pheophoribide a2.纤毛虫与桡足类对浮游植物的摄食过程对被摄食者色素降解影响规律不同.纤毛虫摄食过程对叶绿素a的降解效率显著低于桡足类摄食过程,且不存在对类胡萝卜素的降解偏好性.