HUBEI AGRICULTURAL SCIENCES ›› 2023, Vol. 62 ›› Issue (11): 102-105.doi: 10.14088/j.cnki.issn0439-8114.2023.11.018

• Aquatic Science • Previous Articles     Next Articles

Effects of dissolved oxygen and nitrite on the incubation time of Charybdis feriatus egg

ZOU Xiong1, YANG Ming-qiu2, PU Li-yun2, LU Jian-xue1, XIA Lian-jun1, LIU Xin1   

  1. 1. East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences/Key Laboratory of East China Sea and Deep-Sea Fishery Resources Development and Utilization, Ministry of Agriculture and Rural Affairs, Shanghai 200090, China;
    2. Hainan Academy of Ocean and Fisheries Sciences, Haikou 571126, China
  • Received:2023-01-14 Online:2023-11-25 Published:2023-12-25

Abstract: The effects of dissolved oxygen and nitrite on the incubation time of Charybdis feriatus egg were studied. The results showed that the concentration of dissolved oxygen and nitrite had a significant impact on the incubation time of Charybdis feriatus egg; when the dissolved oxygen content in seawater was within the range of 2~12 mg/L, Charybdis feriatus could be incubated normally. Within this range, as the dissolved oxygen content in seawater increased, the incubation time of Charybdis feriatus egg gradually decreased; nitrite concentration had a significant impact on the incubation duration of Charybdis feriatus egg. When the concentration was lower than 50 mg/L, it was suitable for the incubation of Charybdis feriatus egg. When the concentration of nitrite was lower than 25 mg/L, the incubation duration of Charybdis feriatus egg in each stage was shorter.

Key words: dissolved oxygen, nitrite, Charybdis feriatus egg, incubation time, reproductive capacity, seawater

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