Conclusions
¥Increasing photoperiod may be responsible
for much
of the seasonal increase in growth.
¥Larval size and photoperiod explain 43 to 60%
of the
observed variability in growth.
¥Temperature residuals explain little (<5%) of the variability in growth
residuals except in 1999.
¥A strong year effect on growth and growth residuals was observed
with both lowest in 1995.
¥Parental factors and/or food availability
may be responsible for the
year effect.