Optimum temperature for growth of Australian abalone: preferredtemperature and critical thermal maximum for blacklip abalone, Haliotisrubra (Leach), and greenlip abalone, Haliotis laevigata (Leach)

摘要

The preferred temperature and critical thermal maximum of Australian blacklip abalone. Haliotis rubra (Leach), and greenlip abalone, Haliotis laevigata (Leach), were found to differ only slightly; the blacklip abalone exhibited lower temperature tolerance and preference, as expected from its habitat distribution. Preferred temperatures were 16.9 and 18,9 degrees C, and 50% critical thermal maxima were 26.9 and 27.5 degrees C for blacklip and greenlip abalone. respectively. The optimum temperatures for growth calculated from each of these indices and averaged were 17.0 and 18.3 degrees C, respectively.