贝类

A knoblike protuberance arising from a surface, as the prom nce near the hinge of a bivalve shell or the projection at the scale tip of a seed - bearing cone.

圆形 隆起在一个表面突起的圆形装饰物似的隆起，如在双壳贝类贝壳边缘附近的突起或在含种子的球果顶端的突起

Clam Meretrix meretrix is distributed along the coastal and estuarine areas in eastern Asia. It is an important commercial clam widely cultured in the coast of China.

文蛤是一种在东亚各国沿海和滩涂地区广泛分布的双壳贝类，是我国一种重要的经济品种。

Hard clam, Meretrix lusoria Roding is one of the important shellf ishes cultured in Taiwan. The amount of cultured clams represent 99.2% of total clam production in 1990. However, mass mortality occurred frequently in the west coast of Taiwan since 1969. The average mortality rate varied from 50% to 80%.

文蛤Meretrix lusoria是本省第二童要的食用贝类，而养殖文蛤的产量在文蛤总产量中高达 99.2%，但自1969年起，养殖文蛤经常有大量死亡的忖情形发生，灾区死亡率平均在50 %，严重的地区则高达 80%。

Nuclera DNA contents quantified analysis The nuclear DNA content of 38 bivalve species were quantified using flow cytometry with two internal reference standards, chicken red blood cells and gill cells of Mytilus edulis.

核DNA定量分析以鸡血红细胞和贻贝鳃丝细胞为内标，运用流式细胞仪测定了38种贝类的核DNA含量。

Objective: Norovirus in shellfish is the important pathogen and causes acute nonbacterial epidemic gastroenteritis in mankind worldwide.

目的：贝类中诺如病毒是世界范围内急性非细菌性流行性胃肠炎的重要病原。

In order to obtain viable tetraploids, which remains a major challenge worldwide, research on spindle organization and chromosome behavior was carried out mainly in zhikong scallop, Chlamys farreri, a typical commercially important species which is being cultured in North China Sea. Immunofluorescent technique and laser scanning confocal microscopy has been developed for observation of both microtubule organization and chromosome segregation. Orcein squash method was also used for chromosome observation. A series of complicated configurations of the meiotic spindle and associated patterns of chromosome segregation, including tripolar and seperated bipolar segregation, were found in developing eggs following the inhibition of the first polar body.

为了攻克可存活四倍体人工培育技术的国际性研究难题，本研究选取了我国北方海区的典型经济贝类栉孔扇贝为主要研究对象，建立了一套免疫荧光染色和激光扫描共聚焦显微技术，结合使用染色体地衣红压片观察技术，对第一极体受抑制的受精卵的减数分裂纺锤体装配、染色体分离动态进行了研究，发现了一系列特殊的纺锤体装配及相应的染色体分离行为，包括三极分离、独立二极分离等分离类型，从亚细胞水平上阐明了四倍体形成的细胞学机理。

Its food mainly consisted of various smal l planktons and organical fragments and the animals had no obvious kind selectio n of food.

营埋栖生活，潜居砂质底，洞穴的深度与贝类长度相当，依靠水交换滤取食物，饵料以各种小型浮游生物及有机碎屑为主，对种类没有明显的选择性。

Pearl oysters in Pinctada include some economically important species.

珍珠贝是生产海水珍珠的主要贝类，具有重要的经济价值。

Pinctada martensii is the main economic shellfish for seawater pearl production, and cultivation of genetically improved strain will foster the sustained and healthy development of seawater pearl industry.

马氏珠母贝是生产海水珍珠的主要经济贝类，开展遗传改良培育新的品系关系到海水珍珠产业的持续健康发展。

Sea-cows are herbivores that graze on sea-grasses and related plants, though some will eat algae and floating monocots, such as Pistia and Eichhornia, and they will occasionally eat shellfish and dead fish.

海牛是草食，畜牧业在海、草原与植物，但有些人吃海藻和漂浮monocots等 Pistia 以及不甘示弱和他们偶尔吃贝类和死鱼。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。