腹足类

Detailed biostratigraphic study reveals that the sequence could contain 3 Ostracoda assemblages, 3 Lamellibranchiata and Gastropoda assemblages and 8 sporopollen assemblages, whose ages are discussed on the basis of radioactive dating.

通过详细的生物地层学研究，共划分出 3个介形虫化石组合带、3个瓣鳃类及腹足类化石组合带和 8个孢粉组合带，结合各组同位素年龄数据，对其形成时代进行了探讨。

The injury effects of tributyltin on aquatic organisms were summarized,including the imposex of gastropoda femald snails,reduced photosynthesis and respiration,destroyed SOD,alkaline phosthatase,aaciphosohatse activities of aquatic organisms,destroyed genome DNA of mollusk.

综述了三丁基锡对水生生物的毒理学效应，认为主要表现在干扰海产腹足类的内分泌而诱导性畸变现象的产生，抑制微藻的光合作用和呼吸作用，破坏水生动物超氧化物歧化酶、酸性磷酸酶、碱性磷酸酶等蛋白质的活性，对软体动物的DNA造成不同程度的损伤。

Floating in fresh water in the drum A Biological Studies, strider insect Pentatomidae; sea water are bacteria, crustaceans, arachnids, and INSECTA animals, occasionally there are worms, gastropods, hydroids class.

生活在水面上或附着在水的表面膜下的生物群，有一定的运动能力。在淡水中的漂浮生物有鼓甲科、黾蝽科昆虫；海水中的有细菌、甲壳纲、蜘蛛纲和昆虫纲动物，偶然有蠕虫、腹足类、水螅类。

With the passage of time, species numbers of polychaeta increased (from 3 to 6) while species numbers and abundance of macrobenthos increased. A new pattern of macrobenthos was formed.

互花米草盐沼发育初期，大型底栖动物群落以腹足类为主，丰度和多样性较低，物种丰富度(d=2.18)和多样性(H′=2.19)均低于芦苇盐沼(d=2.61，H′=2.29)。

The larvae gastropods T. riqueti were found abundantly in the four studying areas during October, and grew around a population of Ulothrix sp.

结果显示：小型腹足类－流纹绻之幼生，在秋季10月间会大量出现於三百多公倾之四大研究样区间，且混生於丝藻Ulothrix sp。

The trailing roots of Water Hyacinth can provide a habitat for a variety of aquatic invertebrates including gastropods, chironomid larvae, dragonfly and damselfly larvae, various beetles, and heteropteran bugs.

凤眼蓝*/蔓生植物凤眼蓝的根可作为多种水生无脊椎动物的生境，包括腹足类动物、摇蚊科幼虫、蜻蜓和蟌的幼虫、多类甲虫及异翅目昆虫。

From May to October 1993, an on-the-spot research of soil gastropods was carried out in the Changbai Mountain Forestry Research Stations, Jilin.

自 1 993年 5月至 1 0月对吉林长白山森林生态系统定位站的土壤腹足类进行了多样性调查。

A large number of studies have demonstrated that imposex in marine gastropods is induced mostly by organotin pollutants. But the mechanism of imposex has not been identified.

大量事实证明，有机锡污染是导致海洋腹足类动物发生性畸变的主要原因，但有机锡致性畸变的机制尚未完全清楚。

Large order of gastropods usually breathing by means of a lung-like sac comprising most land snails and slugs and many freshwater snails.

腹足类的一个很大的目，用肺状囊呼吸，包含大部分的陆生螺蛞蝓及许多淡水螺类。

As the only successful example of biomonitoring specific endocrine disrupting chemicals on population level, imposex in gastropods is meaningful in use for reference on research of EDCs, which attracts more and more attention from researchers.

海产腹足类性畸变作为在种群水平上对特定的内分泌扰乱物质进行监测的唯一成功范例，对目前倍受人们关注的EDCs研究也具有借鉴意义。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。