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International Journal of Fisheries and Aquatic Studies
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E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2020, Vol. 8, Issue 3, Part C

Effects of water levels and water exchange rates on growth and production of sea grape Caulerpa lentillifera J. Agardh 1837


Author(s): Nguyen Thi Ngoc Anh, Le Van Thong, Nguyen Phuong Lam, Thach Thi Kim Lien and Nguyen Van Hoa

Abstract: Study on cultivation of sea grape (Caulerpa lentiliifera) in the 1 m2- lined ponds, a 2×2 factorial experiment with two water levels (40 and 80 cm) and two water exchange rate (25% and 50%/week) was randomly designed in triplicate. Sea grape was cultivated at salinity of 30 ppt with continuous aeration, initial stocking rate of 1 kg /m2 and fishmeal was used as nutrient source for sea grape, and cultivation lasted for 60 days. Results showed that a significant interaction effect (p<0.05) between water level water exchange rate was only observed for the growth rate of sea grape after 45 and 60 days of cultivation. Water level significantly influenced (p<0.05) frond (edible portions) production of sea grape, while the effect of water exchange rate on frond production was not significant (p>0.05). Water level and water exchange rate did not affect morphometric frond properties (commercial frond length, ramuli density and ramuli size) and sensory properties. It can be suggested that cultivation of sea grape C. lentillifera at water level of 80 cm combined with 50% water exchange per week could be the appropriate factors to obtain highest growth rate (1.95%/day) and frond production (12.21 kg/m2).

Pages: 211-216  |  260 Views  13 Downloads

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How to cite this article:
Nguyen Thi Ngoc Anh, Le Van Thong, Nguyen Phuong Lam, Thach Thi Kim Lien, Nguyen Van Hoa. Effects of water levels and water exchange rates on growth and production of sea grape Caulerpa lentillifera J. Agardh 1837. Int J Fish Aquat Stud 2020;8(3):211-216.
International Journal of Fisheries and Aquatic Studies