Funding for this research was provided by:
Natural Science Foundation of Tianjin City (17JCQNJC15000)
National Natural Science Foundation of China (31872546, 31472262)
Transformation project of Tianjin Agricultural Achievements (201604090)
Special funding for modern agricultural industrial technology system (CARS-47-Z01)
Modern industrial technology system in Tianjin (ITTFRS2017011)
Received: 4 July 2019
Accepted: 9 March 2020
First Online: 15 April 2020
Ethics approval and consent to participate
: Weizhuo Ltd. (Tangshan, China) provided live <i>C. semilaevis</i> as semen donors for research. The methods for <i>C. semilaevis</i> research were carried out in accordance with the relevant guidelines and regulations. The protocols were approved by the academic ethics committee of Shanghai Ocean University.
: Not applicable.
: The authors declare that they have no conflict of interest.