Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (6): 152-156.doi: 10.11924/j.issn.1000-6850.casb2022-0328

Special Issue: 生物技术 水产渔业

• Original article • Previous Articles     Next Articles

Toxicity of Hydrogen Sulfide to Zoea Larvae, Mysis Larvae and Postlarvae of Penaeus monodon

GUAN Liping1(), MAI Guanhua1, CHEN Pengzheng1, WEN Zhenzhong1, SUN Chengbo1,2,3()   

  1. 1 College of Fisheries, Guangdong Ocean University, Zhanjiang, Guangdong 524088
    2 Guangdong Laboratory of Southern Ocean Science and Engineering (Zhanjiang), Zhanjiang, Guangdong 524025
    3 Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology of Aquatic Economic Animals, Zhanjiang, Guangdong 524088
  • Received:2022-04-27 Revised:2022-09-23 Online:2023-02-25 Published:2023-02-22

Abstract:

The toxicity of hydrogen sulfide to zoea larvae, mysis larvae and postlarvae of Penaeus monodon was discussed to find out the safe concentration for strengthening water quality management during healthy development of nursery production. Conventional biotoxicity test was adopted to test the toxicity of hydrogen sulfide on zoea larvae, mysis larvae and postlarvae of P. monodon and calculate the LC50 and SC for each period. The LC50 at 24, 48, 72 and 96 h was 0.856, 0.720, 0.413 and 0.377 mg/L respectively during the zoea larvae of P. monodon; the LC50 at 24, 48, 72 and 96 h was 5.167, 4.460, 1.387 and 0.940 mg/L respectively during the mysis larvae of P. monodon; and the LC50 at 24, 48, 72 and 96 h was 20.625, 17.813, 12.056 and 10.762 mg/L respectively during the period of P. monodon postlarvae. The safe concentration (CS) of hydrogen sulfide for the zoea larvae, mysis larvae and postlarvae of P. monodon was 0.038, 0.094 and 1.076 mg/L, respectively. Hydrogen sulfide showed different degrees of toxicity with increasing concentration to zoea larvae, mysis larvae and postlarvae of P. monodon.

Key words: hydrogen sulfide, Penaeus monodon, semi-lethal concentration, safe concentration