Optimal temperature for growth and condition of an endemic subtropical anemonefish

Publication year: 2011
Source: Aquaculture, In Press, Accepted Manuscript, Available online 13 June 2011

Kelvin J.W., Rushworth , Stephen D.A., Smith , Kenneth L., Cowden , Steven W., Purcell

The wide-band anemonefish (Amphiprion latezonatus), a subtropical endemic of Australia, has strong potential as a cultured ornamental. We investigated the effect of seawater temperature (19–29°C) on hatchery-reared juveniles over two months. Optimum temperatures for highest specific growth rate (SGR) and condition factor (K) were modelled using nonlinear regression. Growth rate increased with temperature to a maximum at 22–23°C then declined. Optimum SGR, at 22.4°C, was 0.91% day-1. The condition of juveniles displayed a similar trend but became increasingly variable within groups at higher temperatures and a significant optimum was not elucidated. This finding suggests that dominance behaviour accentuates with increasing…