The vertical changes of the accumulation rates and densities of the ephippia of Daphnia species in the sediment of Lake Donghu（Wuhan City）and its correlations with the nutrients

SUN Yu-chen, ZHANG Ting-ting, GUO Hong-hui, ZHANG Fei-yun, WANG Zi-yan, DENG Dao-gui

Journal of Biology . 2020, (5): 81 - . DOI: 10.3969/j.issn.2095-1736.2020.05.081