LIMITED LIGHT PENETRATION RESTRICTS THE DEPTHS AT WHICH PHOTOSYNTHESIS TAKES PLACE IN AQUATIC ENVIRONMENTS
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FIGURE 8.5 Photosynthetic marine organisms, such as kelp, marine diatoms, and the algae associated with reef-building corals, are limited to the euphotic zone, the surface layer of the world’s oceans.
(Images & Stories/Alamy) (John R. Dolan, Laboratoire d’Oceanographique de Villefranche; Observatoire Oceanologique de Villefrance-sur-Mer) (Amanda Pollock/USFWS)