ATOLL Figure 2

Figure 2. Image from the ecoSCOPE showing a school of juvenile herring Clupea harengus feeding in a micropatch of copepods. Herring A and B in typical s-shape shortly before attacking a copepod upwards. Herring C shortly after an attack during a u-turn. In this position the silvery sides produce an intense light-flash. Herring D shortly later on his downward return to his old school position. Herring E starting a new attack upwards. Due to the deflection of light by phytoplankton and microparticles the copepods are not visible from the distance of the optics.