Population Genetics Of A Marine Copepod, Calanus Sinicus Brodsky

Calanus sinicus is a characteristic copepod widely distributed in Northwest Pacific continental shelf because it dominates the mesozooplankton in the shelf ecosystem, also components a major copepod in China seas for its eggs, larvae and adults provide a wide size spectrum of food to the commercial pelagic fish stocks. Owing to it plays a most important role in the material and energy flows in ecosystem of China seas, which corresponds to an other planktonic copepod Calanus finmarchicus inhabited in northern Atlantic, Calanus sinicus is named"key species"in China seas, especially in the Bohai Sea, the Yellow Sea and the East China Sea. Although Much biological and ecological research contribution (e.g. Feeding, fecundity, development, growth, diel vertical migration, spatio-temporal distribution, seasonal life cycle, etc.) of Calanus sinicus has been well documented in previous field and laboratory investigations in the past about fifty years, little research field has been dealed with the maintenance mechanism of Calanus sinicus population dynamics, especial in population genetic diversity in China seas. We have little knowledge on the significant problems as follow as life strategy, ecological adaptation and ecological evolution, population geodiversity and differentiation, as well as oversummering of Calanus sinicus. Studies on the population genetics of Calanus sinicus is an important research field in marine ecosystem dynamic project. Population genetic analysis may yield statistical rather than deterministic conclusions about population dynamic phenomena. Thus, the destination of a particular plankton may not be predictable, but how frequently a dispersal pathway is used (i.e. estimation of the number of migrating individuals) may be established using population genetic statistics...