Extensive research has been performed on the effects of “white”
light intensity on larvae performance in a wide range of species.
However little attention has been paid to the interaction of light
spectral content and intensity. In their experiments, Migaud et al.
(2009) observed the performance of Atlantic cod larvae reared under
different light spectra at three different intensities (0.25, 0.5 and
1.39 W.m−2) and discovered that spectral effects on performance
(enhanced growth under shorter wavelengths became more pronounced
with increased intensity). This further highlights that the
three dimensional interaction of spectral content, light intensity and
photoperiod must be carefully considered before drawing any firm
conclusions.