Nutrition & Health

Effects of on-demand feeding on sea urchin larvae (Paracentrotus lividus; Lamarck, 1816), development, survival and microalgae utilization

This study compared the growth of sea urchin Paracentrotus lividus larvae cultured using two different rearing methods: a variable method based on a variable amount of feed (microalgae) and seawater exchange (30% or 50%) established according to the phytoplankton concentration in the larval cultures and a fixed method characterized by a fixed amount of feed and seawater exchange.

Results suggest that the use of the variable method improves the larval survival and development and also it reduces resource consumption (phytoplankton, seawater use and work effort), which in turn could potentially improve the hatchery production of P. lividus.

Fernández-Gimenez, A.V., de los Ángeles Pereira, N. and Sarasa, M.V., 2016. Liposoluble vitamins in Crustacean feed: Metabolic and Histological responses.
Indian Journal of Experimental Biology, 54, pp.297-308.

Download the full article from Research Gate (PDF)


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