¥March
10th
¥larvae are limited to foraging in the light window of 8
hours per day, resulting in a long nights with low or no foraging. The individuals rely on stomach reserves. The larvae run empty of energy after ca. 4-6 hours and the rest of the night individuals have negative growth.
¥
¥April
20th
¥the temperature of the water column increases slightly (1¼C
warmer), but the daylight hours available for foraging have increased to 16 hours. This
greatly increases growth for both 5 and 9 mm larvae.
¥
¥Light decreases exponentially
in the water column, restricting foraging at 20m compared to the surface, at least for 5mm individuals.
¥
¥Turbulence
is not included in these calculations.