The study of the differentiation of sexual reproductive processes in eel herb population.

Recently, the research team of aquaculture water ecology and biological resource restoration of the Institute of Oceanography of the Chinese Academy of Sciences compared the sexual reproduction process of the eel population of Weihai Swan Lake and Qingdao Huiquan Bay seagrass bed with the research method of combining the field comprehensive survey with indoor culture experiment, and discussed the main causes of significant differences between the populations.
eel grass (Zostera Marina L.), formerly known as "big leaf algae", is the northern hemisphere temperate area of the most widely distributed, the most representative of the seagrass, mainly distributed in the Pacific and North Atlantic regions of Europe, North Africa, North America coast, mainly growing in the gentle sediment shallow water bottom, from the tide to the subtidal area of shallow water areas are distributed.
affected by human activities and climate change, eel bed degradation is serious in the world, especially in China.
eel population supplementation mechanism research is an important part of eel bed protection, management and restoration research, but at present, the research on the supplementary mechanism of eel grass population system and quantitative is lacking.
for the systematic and quantitative study of eel population supplementmechanism, the team selected Weihai Swan Lake and Qingdao Huiquan Bay two typical regional geographic population as the research object, through random sampling method, fixed sample method and indoor seed germination culture method, from a variety of angles to compare the two regions of the eel's sexual reproductive capacity, seed size, seed bank dynamics, seed germination time and other sexual reproductive process differences.
studies found that the difference in sexual reproductive supplement contribution of the two geographical populations was significant, 41.36% and 2.53%, respectively, and the germination time of the seeds of Huiquan Bay and Swan Lake eel herb population was also significantly different, with the former occurring in autumn and the latter occurring in spring, and the difference in temperature may be the main cause of the significant difference in the differentiation between populations.
this study provides the key basic data for the protection and restoration of seagrass beds, and enriches the research content of eel breeding ecology.
research published in Frontiers in Plant Science.
the thesis was completed by graduate students Xu Shaochun, Wang Pengmei and others, and the communication author was Zhou Yi, a researcher.
the research has been supported by the National Science and Technology Foundation Work Special, the State Oceanic Administration's Special Fund for Scientific Research in the Marine Public Welfare Industry, and the National Natural Science Foundation project.
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