Cultivation of the paracalanid copepod, Bestiolina similis (Calanoida: Crustacea)

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First feed production continues to be a major barrier to the cultivation of many fish species. Although copepod nauplii are a suitable food, consistency and high production have been difficult. Temporal changes in production in batch cultures of the calanoid copepod, Bestiolina similis, were investigated to develop management strategies for the use of copepod nauplii as a live food. Population abundances and female egg production rates were measured, and recruitment and mortality rates were calculated. Relative expression levels of a molecular biomarker for stress, heat shock protein hsp70, were determined using real-time quantitative polymerase chain reaction. The population cycle included a period of rapid increase in abundances, followed by a steep decline and a period of stable but low population densities. Initially, egg production exceeded 25 eggs per female per day and low mortality rates prevailed. The population decline was preceded by upregulation of hsp70 and followed by an 80-90% decline in female fecundity and an increase in mortality rates. Egg production rates remained below four eggs per female per day even after new generations of females reached adulthood. The predictable population cycle provides opportunities to coordinate nauplius production rates with first feed needs of fish larvae. © Copyright by the World Aquaculture Society 2009.




VanderLugt, K., Cooney, M. J., Lechner, A., & Lenz, P. H. (2009). Cultivation of the paracalanid copepod, Bestiolina similis (Calanoida: Crustacea). Journal of the World Aquaculture Society, 40(5), 616–628.

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