Physiological responses of the abalone Haliotis discus hannai to daily and seasonal temperature variations.

ABSTRACT: Organisms inhabiting tidal mixing-front zones in shallow temperate seas are subjected to large semidiurnal temperature fluctuations in summer. The ability to optimize energy acquisition to this episodic thermal oscillation may determine the survival, growth and development of these ectotherms. We compared the physiological and molecular responses of Haliotis discus hannai cultivated in suspended cages to fluctuating or stable temperature conditions. Several physiological indicators (respiration, excretion rates and O:N) were measured in both conditions, and alterations in the proteome during thermal fluctuations were assessed. No summer mortality was observed in abalone cultivated in fluctuating temperatures compared with that at stable high temperatures. Metabolic rates increased sharply

SUBMITTER: Kang HY 

PROVIDER: S-EPMC6541628 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature