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Biotecnia
versión On-line ISSN 1665-1456
Resumen
OCANO-HIGUERA, Victor Manuel et al. Effect of constant and oscillating temperature on the physiological condition of the lion’s paw scallop Nodipecten subnodosus. Biotecnia [online]. 2020, vol.22, n.2, pp.103-109. Epub 07-Ago-2020. ISSN 1665-1456. https://doi.org/10.18633/biotecnia.v22i2.1251.
The present research work determined the effect of the stable and oscillating seawater temperature at three different levels (21, 24 and 28°C), on the physiological condition of the lion’s paw scallop Nodipecten subnodosus. For this, we evaluated the following physiological indicators: adenosine triphosphate content (ATP), glycogen and total carbohydrates, as well as muscle yield index (MYI) and adenylated energy charge, which were determined in the abductor muscle of organisms, extracted directly from the lagoon and after the treatments application. It was found that in the experiment, concentrations of ATP, glycogen content, total carbohydrates, and MYI decreased significantly (P<0.05) after the application of treatments. No effect of temperature level and application form (oscillating and constant) on MYI and CEA was found, however, glycogen content showed a significant affect only from the temperature level, being organisms exposed to 28°C statistically different from those of 24 and 21°C. In conclusion, only the acclimatization temperature level affected the physiological condition of the lion’s paw scallop, being the organisms acclimatized to 28°C the most affected.
Palabras llave : Lion´s paw scallop; Nodipecten subnodosus; temperature oscillating; physiology.