Effect of light and temperature on the development of turbot eggs

• Main Authors: Iglesias-Estévez, J. (José), Rodríguez-Ojea, G., Peleteiro-Alonso, J.B. (José Benito)
• Format: Conference Object
• Language: English
• Published: Centro Oceanográfico de Vigo 1991
• Subjects: Turbot
• Online Access: http://hdl.handle.net/10508/8933

Different experiments were done to determine the effeets of light and temperature on the embryonie development of turbot eggs (Seophthalmus maximus L.) obtained in eaptivity. No signifieant differen~es have from fertilization to hC'tehing in the been found between time elapsed trials earried out wi th 24 hours of light and those done in dark eonditions,therefore light is not a determining faetor in the embryonie development of turbot eggs. The relation between temperature and time needed to reaeh eaeh embryonie stage, shows a elear inverse relationship. The exponential-potential equation whieh relates temperature and the age of the eggs, defined as the time in hours elapsed sinee fertilization, is: Y = 27.64 . e -0.11 T + 0.05 i . 1.21 1 r = 0.9904 paper also provides for eaeh experimental From the applieation of this equation, this th~ development eurves for eaeh embryonie stage temperature (in the range 10 QC to 20 QC).