Growth Characteristics of Rhopilema esculenta and its Relationship with Surface Water Temperature During Rapid Growth Period in Hangzhou Bay

• Published in: Hai yang kai fa yu guan li Vol. 42; no. 1; pp. 112 - 119
• Main Authors: XU Guoqiang, ZHOU Yongdong, XU Kaida, LI Pengfei, WANG Haoxue
• Format: Journal Article
• Language: Chinese
• Published: Editorial Office of Ocean Development and Management 01.01.2025
• Subjects: body mass; environmental factors; hangzhou bay; rhopilema esculenta; umbrella diameter
• ISSN: 1005-9857

In order to investigate the relationship between the growth characteristics of Rhopilema esculenta and surface water temperature during the rapid growth period in Hangzhou Bay, the authors conducted a survey of Rhopilema esculenta biology and environmental factors in Hangzhou Bay in June—July 2022. The results showed that: (1) The umbrella diameter of Rhopilema esculenta ranged from 45 to 650 mm, the average umbrella diameter was 327.55 mm; the body mass of Rhopilema esculenta ranged from 9 to 18 260 g, the average body mass was 2 748.21 g. (2) The relationship between umbrella diameter and body mass was given by W=1.578 5×10-5 UB3.120 8 (R2=0.975 4，n=1 601).(3) With the increase of date, the average umbrella diameter of Rhopilema esculenta increased from 104.33 mm to 361.20 mm and the average surface water temperature increased significantly from 21.69 ℃ to 27.94 ℃. (4) The average umbrella diameter and average surface temperature during the investigation period were fitted, and the relationship between them