中文摘要：

扇贝(斗篷的一种 farreri ) 的保留效率(RE ) ，牡蛎(Crassostrea 十亿) 和在一个流动彻底地系统的贻贝(Mytilus edulis ) 被测量理解短期的反应到各种各样的粒子和有机物集中。由比较 C 的 RE。有 C 的 farreri。十亿和 M。edulis，我们在喂上获得了进一步的知识 C 的生理的特征。farreri 并且查明了这种的高夏天死亡的可能的原因。试验性的喂条件在 seston 丰富和作文被增加自然淤泥或有教养的 microalgae 在操作的推迟的 seston，以及条件的丰富和作文包括了自然差别。结果在自然的海水里显示出那，为在 M 的最大的保留的最小的粒子尺寸。edulis， C。十亿和 C。farreri 分别地是约 4， 6，和 8 渭 m；2-渭 m (相等的球形的直径) 的 RE 粒子分别地是 17% ， 19% ，和 8% ；并且相对标准化 RE 分别地是 58% ， 49% ，和 18% 。在 C。十亿和 M。edulis，为最大的保留的最小的粒子尺寸没随着食物质量(器官的内容) 变化。C。farreri 对在粒子集中和器官的内容的变化更敏感。随粒子集中增加，为在扇贝的最大的保留的最小的粒子尺寸变了到大粒子，为 2-渭 m 粒子的 RE 在充实淤泥的组在自然海水从 8% 减少了到 1.6% 鈥 ?% 。随器官的内容增加，为最大的保留的最小的粒子尺寸在 C 的 RE 在自然 seawater.Variation 从 8 ～ 5 渭 m 变了。有在更低的 RE 和更小的粒子尺寸之间的食物条件和关系的 farreri 可以妨碍 C。从在浮游植物的尺寸分发由于减少收进 Sungo 海湾的食物的 farreri。关键词保留效率- Mytilus edulis - Crassostrea 十亿-斗篷的一种 farreri 由中国(号码 40676093 )的国家自然科学基础支持了，欧洲社区 INCO-DC 工程 ERBIC18CT980291 ，中国( 973 节目)( 2006CB400608 )的国家基本研究节目，并且国家高技术研究和开发中国( 863 程序)(号码 2006AA100307 )并且(编程序 2006BAD09A09 )

英文摘要：

Retention efficiencies （RE） of scallop （Chlamys farreri）, oyster （Crassostrea gigas） and mussel （Mytilus edulis） in a flow-through system were measured to understand the short-term response to various particle and organic matter concentrations. By comparing the RE of C. farreri with that of C. gigas and M. edulis, we gained further knowledge on the feeding physiological characteristics of C. farreri and ascertained the possible cause of high summer mortalities of this species. The experimental feeding conditions included natural differences in the abundance and composition of suspended seston, as well as conditions in which seston abundance and composition were manipulated by adding natural silt or cultured microalgae. The results show that in natural sea water, the minimum particle size for maximal retention in M. edulis, C. gigas and C. farreri was approximately 4, 6, and 8 μm, respectively; the RE of 2μm （equivalent spherical diameter） particles was 17%, 19%, and 8%, respectively; and the relative standardized RE was 58%, 49%, and 18%, respectively. In C. gigas and M. edulis, the minimal particle size for maximal retention did not change with food quality （organic content）. C. farreri was more sensitive to fluctuations in particle concentration and organic content. With particle concentration increase the minimal particle size for maximal retention in scallop shifted to large particles and the RE for 2μm particle decreased from 8% in natural seawater to 1.6%-6% in silt-enriched groups. With organic content increase, the minimal particle size for maximal retention shifted from 8 to 5 μm in natural seawater.Variation in RE of C. farreri with food conditions and the relationship between lower RE and smaller particle size may hamper C. farreri from food taking due to the decrease in the size distribution of phytoplankton in Sungo Bay.