Effect of three diets in the gonadal growth and maturation of Paracentrotus lividus

Raposo, Andreia; Susana, Ferreira; Rodolfo, Ramos; Anjos, Catarina; Baptista, Teresa; Carla, Tecelão; Sílvia, Gonçalves; Pombo, Ana

doi:10.3389/conf.fmars.2016.04.00030

Cited by 1 publication

(1 citation statement)

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“…In the past few years, different authors published results originating from different cultivating conditions, considering various environmental parameters as well as diets. Raposo et al [125], for example, tested the efficacy of three artificial diets (A, green macoalgae Codium sp. ; B, solid mix diet, with macroalgae Codium sp., carrot and cabbage; and C, maize and spinach) during 80 days to promote gonadal growth and the maturation of P. lividus gametes.…”

Section: Further Developmentmentioning

confidence: 99%

Importance of Gamete Quality in Ecotoxicological Application: Natural versus Bred Population in Paracentrotus lividus

Sartori¹,

Samantha²,

Giuliani³

et al. 2017

Sea Urchin - From Environment to Aquaculture and Biomedicine

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Several approaches have been tested to respond to the depletion of wild stocks, from the production of seeds to the setting up of closed echinoculture systems, starting with fertilization of eggs with the consequent development to adult sea urchins. Hence, in the last years, our research group has focused on the assessment of a feasible and sustainable strategy aimed to ensure a rapid and effective gonadal growth of healthy gametes in recirculating aquaculture system (RAS) to employ in ecotoxicological application. In order to compare the health of obtained gametes with wild populations, the effectiveness of diets was evaluated with different biological parameters, such as fertilization and embryo-development test, and with histological analysis of gonads to appraise the stage of maturation. Moreover, the information regarding different breeding conditions of adults and genetic variability should be combined with the analysis of larval settlement and its requirements, demonstrating the importance of these parameters for the possible closure of the echinoculture cycle in RAS. Results achieved so far in terms of gonadal development and health of gametes have provided evidence of success in overcoming natural gaps between reproductive events in natural populations and an efficient and standardize breeding condition in RAS.

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Section: Further Developmentmentioning

confidence: 99%