Reproductive performance of the Pacific red snapper Lutjanus peru supplemented with microalgae (Grammatophora sp.)

• Published in: Journal of applied phycology 2022-02, Vol.34 (1), p.395-404
• Main Authors: Spanopoulos-Zarco, Milton, Gracia-López, Vicente, Pacheco-Vega, Juan Manuel, Estrada-Godínez, José Antonio, González-Silvera, Daniel, Omont, Alexia, Maldonado-García, Minerva
• Format: Article
• Language: English
• Subjects: Algae; Aquaculture; Aquatic microorganisms; Biomedical and Life Sciences; Breeding; Captive breeding; Diatoms; Diet; Ecology; Eggs; Fatty acids; Fermentation; Fish; Fish culture; Fish eggs; Fish oils; Freshwater & Marine Ecology; Grammatophora; Hatching; Life Sciences; Lutjanus peru; Marine fishes; Microalgae; Operating costs; Phytoplankton; Plant Physiology; Plant Sciences; Polyunsaturated fatty acids; Production costs; Reproduction; Seasons; Silage; Spawning; Spawning seasons
• ISSN: 0921-8971; 1573-5176
• DOI: 10.1007/s10811-021-02650-6

The steady demand for fish in the aquaculture sector has led to the study and implementation of new compounds of natural origin which seek to standardize and maximize production by ensuring reproductive performance. Microalgae have emerged as a renewable source with specific nutritive qualities that allows the enhancement of captive breeding, and the use of local strain aims to facilitate cultivation and reduce production costs. Therefore, in this study, the effect of a diet supplemented with a diatom of the genus Grammatophora obtained from La Paz Bay, Mexico, was evaluated on the reproductive performance of 5-year-old Pacific Red snapper ( Lutjanus peru ). Two isoproteic and isolipidic diets were compared: the control semi-humid diet (R0) and the experimental enriched diet with 3% of Grammatophora sp. silage made by fermentation (R1). Fishes were fed ad libitum 3 months previous to the spawning season during 7 months. Hatching rate was significantly ( P