Representative video data obtained with the continuous flow though sytem
during an egg survey.

Panel 1 shows a number of recently spawned eggs
with a distinct yolk and periviteline space. They are nearly perfectly
transparent.

Panel 2 shows a much older egg in which the developing
larvae is now clearly visible.

Panel 3 captures the image of a
larval fish. Because larval fish are still more dispersed and less
abundant than the eggs such images are comparatively rare.