Version 1
: Received: 8 May 2024 / Approved: 9 May 2024 / Online: 9 May 2024 (07:21:43 CEST)
How to cite:
Araújo, J.; Gamboa, M.; Choulis, I.; Candeias-Mendes, A.; Cabrita, E.; Pousão-Ferreira, P.; Soares, F. Influence of Feeding and Temperature and Photoperiod Manipulation on Purple Sea Urchin (Paracentrotus lividus) Gonad Development. Preprints2024, 2024050550. https://doi.org/10.20944/preprints202405.0550.v1
Araújo, J.; Gamboa, M.; Choulis, I.; Candeias-Mendes, A.; Cabrita, E.; Pousão-Ferreira, P.; Soares, F. Influence of Feeding and Temperature and Photoperiod Manipulation on Purple Sea Urchin (Paracentrotus lividus) Gonad Development. Preprints 2024, 2024050550. https://doi.org/10.20944/preprints202405.0550.v1
Araújo, J.; Gamboa, M.; Choulis, I.; Candeias-Mendes, A.; Cabrita, E.; Pousão-Ferreira, P.; Soares, F. Influence of Feeding and Temperature and Photoperiod Manipulation on Purple Sea Urchin (Paracentrotus lividus) Gonad Development. Preprints2024, 2024050550. https://doi.org/10.20944/preprints202405.0550.v1
APA Style
Araújo, J., Gamboa, M., Choulis, I., Candeias-Mendes, A., Cabrita, E., Pousão-Ferreira, P., & Soares, F. (2024). Influence of Feeding and Temperature and Photoperiod Manipulation on Purple Sea Urchin (<i>Paracentrotus lividus</i>) Gonad Development. Preprints. https://doi.org/10.20944/preprints202405.0550.v1
Chicago/Turabian Style
Araújo, J., Pedro Pousão-Ferreira and Florbela Soares. 2024 "Influence of Feeding and Temperature and Photoperiod Manipulation on Purple Sea Urchin (<i>Paracentrotus lividus</i>) Gonad Development" Preprints. https://doi.org/10.20944/preprints202405.0550.v1
Abstract
Understanding and controlling reproductive cycles and gonadal maturation in cultivated species are crucial in aquaculture. The sea urchin Paracentrotus lividus, known for its edible gonads, requires careful maturation control for both reproduction and commercialization. This study explores the impact of temperature, photoperiod, and diet on gonadal development to enhance year-round aquaculture practices. Using two independent cultivation systems, we manipulated environmental conditions to mimic different seasons. Sea urchins were exposed to natural or manipulated temperature and photoperiod conditions and fed either natural (Ulva spp.) or formulated diets. The gonadosomatic index (GI) and histological analysis assessed gonadal development. Results revealed a clear correlation between environmental conditions, diet, and gonadal maturation. Manipulated conditions accelerated maturation, with sea urchins showing advanced stages compared to natural conditions. Furthermore, sea urchins fed formulated diets exhibited higher GI values, indicating enhanced maturation. Histological analysis confirmed accelerated maturation, particularly in females. The study underscores the feasibility of controlling gonadal maturation through environmental manipulation and diet, enabling year-round marketable gonad production. Providing formulated diets rich in polyunsaturated fatty acids, notably docosahexaenoic acid (DHA), enhances commercial value. These findings optimize aquaculture practices for P. lividus, highlighting its adaptability to yield-maximizing production strategies. Understanding and controlling reproductive cycles and gonadal maturation in cultivated species are crucial in aquaculture. The sea urchin Paracentrotus lividus, known for its edible gonads, requires careful maturation control for both reproduction and commercialization. This study explores the impact of temperature, photoperiod, and diet on gonadal development to enhance year-round aquaculture practices. Using two independent cultivation systems, we manipulated environmental conditions to mimic different seasons. Sea urchins were exposed to natural or manipulated temperature and photoperiod conditions and fed either natural (Ulva spp.) or formulated diets. The gonadosomatic index (GI) and histological analysis assessed gonadal development. Results revealed a clear correlation between environmental conditions, diet, and gonadal maturation. Manipulated conditions accelerated maturation, with sea urchins showing advanced stages compared to natural conditions. Furthermore, sea urchins fed formulated diets exhibited higher GI values, indicating enhanced maturation. Histological analysis confirmed accelerated maturation, particularly in females. The study underscores the feasibility of controlling gonadal maturation through environmental manipulation and diet, enabling year-round marketable gonad production. Providing formulated diets rich in polyunsaturated fatty acids, notably docosahexaenoic acid (DHA), enhances commercial value. These findings optimize aquaculture practices for P. lividus, highlighting its adaptability to yield-maximizing production strategies.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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