Lee, K.W., J.H. Park & H.G. Park. (2011). Effect of Light Intensity on Survival, Growth and Productivity of the Cyclopoid Copepod Paracyclopina nana: A Laboratory Study. Korean Journal of Fisheries and Aquatic Sciences. 44(6):671-676.

470972

Lee, K.W., J.H. Park & H.G. Park

2011

44(6):671-676.

Publication

https://koreascience.kr/article/JAKO201108040014229.page

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To determine the optimum light intensity for mass culture of the brackish-water cyclopoid copepod Paracyclopina nana , survival, growth, and productivity of the copepod were examined at several light intensities (0, 10, 100, 500, 1,000 lx). The survival rate of P. nana from nauplius to adult decreased with increasing light intensity. The highest survival rate was found under the dark condition, with 61.7% surviving; no significant difference was observed between 0 and 10 lx (51.7%) and the lowest survival rate was with 100 lx (26.7%). Survival rates at 500 and 1,000 lx were significantly lower in comparison with other conditions. The developmental period from nauplius to copepodid (5.8 days) and to adult (11.8 days) at 10 lx was significantly shorter than in the other treatments. Daily mean nauplius production of adult females over 7 days at 0, 10 and 100 lx was significantly higher than at 500 and 1,000 lx. In the 1,000 lx treatment, 99% of the adult females died on the 14 th day. The optimum light intensity for the mass culture of P. nana could be 10 lx, which had no adverse effects on survival, development, or reproduction. Key words: Copepod, Paracyclopina nana , Light intensity

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