Open time (duration of inflorescences above the water surface), effective time (flowers open to pollinators) and pollination expectation value (possibility of flowers being pollinated) predicted relying on tide tables in the northern region of the Yellow Sea as well as periods over which pollinator

Pollination expectation value was artificially divided into three levels: high (pollination time longer than 4 hours), medium (pollination time in between 2 to 4 hours) and low (pollination time less than 2 hours). Days with an asterisk are sampling days.