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海洋与湖沼 2012
NEW PERCEPTION OF JELLYFISH BLOOM IN THE EAST CHINA SEA AND YELLOW SEA
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Abstract:
The results of the experiments in laboratory and cruises in the Chinese coastal waters and continental shelf area showed that the jellyfish bloom occurred in the East China Sea and Yellow Sea was caused by bottom sea water temperature turbulence and the rich food supply. The hypothesis is that the jellyfish usually live on the sea bottom as the form of polyps as benthos, when the environment temperature under the turbulent condition, it will trigger the polyps asexual reproduction to the strobilation, producing ephyra. This process is the way for jellyfish to escape from the crisis environment, wander in the sea water to settle in the new environment and find new opportunities for live by coincidence. The key factors for the jellyfish bloom are temperature stimulation and food supply. Climate change and eutrophication are the main causes of the jellyfish bloom in the Chinese coastal waters.