Physiological responses of Ampithoe valida and its feeding potential on Ulva prolifera

Chongxiang Li; Yiyuan Tang; Wenhui Sun; Jing Xia; Zhangyi Xia; Jianheng Zhang; Peimin He; Jinlin Liu; Shuang Zhao

doi:10.1016/j.marenvres.2023.105942

Physiological responses of Ampithoe valida and its feeding potential on Ulva prolifera

Mar Environ Res. 2023 Apr:186:105942. doi: 10.1016/j.marenvres.2023.105942. Epub 2023 Mar 10.

Authors

Chongxiang Li¹, Yiyuan Tang², Wenhui Sun², Jing Xia³, Zhangyi Xia², Jianheng Zhang⁴, Peimin He⁵, Jinlin Liu⁶, Shuang Zhao⁷

Affiliations

¹ College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361104, China.
² College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
³ College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; School of Oceanography, Shanghai Jiao Tong University, Shanghai, 200030, China.
⁴ College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, 222005, China. Electronic address: jh-zhang@shou.edu.cn.
⁵ College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, 222005, China. Electronic address: pmhe@shou.edu.cn.
⁶ College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; The Key Laboratory of Zoological Systematics and Application, Hebei University, Baoding, 071002, China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, 222005, China. Electronic address: 15721539745@139.com.
⁷ College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, 222005, China. Electronic address: 1099978653@qq.com.

PMID: 36924535
DOI: 10.1016/j.marenvres.2023.105942

Abstract

Large numbers of Amphipoda feed on floating green tide macroalgae in the Yellow Sea, among which Ampithoe valida has a high abundance in the stable and decline periods. Amphipoda preferentially feed on Ulva. Under different temperatures, salinities, and pH, the physiological responses of A. valida and its feeding potential on Ulva prolifera were investigated, along with its physiological responses during green tide blooms in the Southern Yellow Sea. Ampithoe valida could survive within a temperature range of 5-30 °C, salinity of 5-40, and pH of 4-10. Optimal environmental conditions for growth were temperature 15-25 °C, salinity 10-40, and pH 6-10. At temperatures of 5-30 °C, salinities of 5-35, and pH of 4-9, A. valida could effectively reduce U. prolifera biomass. The feeding ability of A. valida was greatest in 25-30 °C, 10-25 salinity, and neutral seawater, exceeding 5 mg·ind.^-1·d^-1. During green tide outbreaks in the Southern Yellow Sea from May to August, the monthly average sea surface temperature, salinity, and pH range is 17.5-27.3 °C, 23.8-29.6, and 7.87-8.17, respectively, within which A. valida showed well growth and could effectively reduce U. prolifera biomass. Finally, this study further discussed the possibility of A. valida as a biological method to control green tide.

Keywords: Ampithoe valida; Feeding potential; Green tide; Physiological responses; Southern Yellow Sea; Ulva prolifera.

MeSH terms

Amphipoda*
Animals
Biomass
China
Eutrophication
Seawater
Temperature
Ulva*