Effects of diets on structure and population size of Apocyclops royi (Copepoda: Cyclopoida)
Vol. 134 No. 1S-3 (2025), Special Issue: CBA 2025
Vol. 134 No. 1S-3 (2025)

Effects of diets on structure and population size of Apocyclops royi (Copepoda: Cyclopoida)

Special Issue: CBA 2025
https://doi.org/10.26459/hueunijns.v134i1S-3.7937
Published 2025-12-26
Khanh Chuyen Phung*
The University of Danang – University of Science and Education, Danang 550000, Vietnam
Ngoc-Son Tran
The University of Danang – University of Science and Education, Danang 550000, Vietnam
Thi Phuong Pham
The University of Danang – University of Science and Education, Danang 550000, Vietnam
Mau Trinh-Dang
The University of Danang – University of Science and Education, Danang 550000, Vietnam
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Keywords

Aquaculture
Apocyclops royi
Copepoda
Cyclopoida
zooplankton

How to Cite

1.
Phung KC, Tran N-S, Pham TP, Trinh-Dang M. Effects of diets on structure and population size of Apocyclops royi (Copepoda: Cyclopoida) . hueuni-jns [Internet]. 2025Dec.26 [cited 2025Dec.27];134(1S-3):145-50. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/7937
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Abstract

This paper investigates the effects of different diets on the growth and development of Apocyclops royi (A. royi) in the laboratory. A. royi individuals were acclimatised in a laboratory culture environment, and newly hatched larvae of the same age were collected and raised until adulthood for the experiment. Different diets were arranged and evaluated to select the optimal food for the growth and development of A. royi. The experiments included the following treatments: the green alga Chlorella vulgaris (C. vulgaris), microbially fermented rice bran combined with C. vulgaris algae, and yeast combined with C. vulgaris algae. The results show that the diet containing microbially fermented rice bran combined with C. vulgaris algae yielded the best performance for the A. royi population, evidenced by the highest density of 9,022.22 ± 1,066 ind·L–1 at day 12 and the highest larval yield compared with the other treatments (p < 0.05). This study provided a scientific foundation for selecting the optimal diet to enhance the biomass production efficiency of copepods, a nutrient-rich natural food source for fish and marine crustacean larvae. Consequently, it contributed to the optimisation of the food chain in sustainable aquaculture.

https://doi.org/10.26459/hueunijns.v134i1S-3.7937
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