Effects of Temperature and Salinity on Egg Production, Hatching, and Mortality Rates in Acartia ohtsukai (Copepoda, Calanoida)

• DOI: 10.3389/fmars.2021.704479
• Publication Date: 2021-07-12T04:43:48Z
• Authors: Seo Yeol Choi; Eun Hye Lee; Ho Young Soh; Min-Chul Jang
• Keywords: Calanoida; Acartia; Temperature salinity diagrams

The calanoid copepod Acartia ohtsukai predominates the estuarine and coastal waters of East Asia during summer. Its occurrence characteristics confer it with good potential as live prey for fish larvae through mass culture. To investigate effect temperature salinity combinations on its egg production rate (EPR), hatching success (HS), mortality rate, experiments were undertaken repeated three times five temperatures (10, 15, 20, 25, 30°C) seven salinities 27, 30, 33 psu). EPR HS highest at 25 30°C, respectively, a 27 psu. Mortality was 10°C in almost all gradients, whereas lower water ranges 20–30°C 20–30 psu, respectively. These findings indicate that A. can inhabit wide salinities, optimized condition culture is combination 25°C