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Oceans cover approximately three-quarters of our planet. Oceanic organisms are placed into one of two divisions, the pelagic (open waters) and benthic (ocean floor) divisions. The pelagic division includes the neritic province and the oceanic province. The neritic province contains a greater concentration of organisms than the oceanic province because sunlight penetrates these waters and it contains the most nutrients. Phytoplankton is food not only for zooplankton but also for small fishes. These small fishes in turn are food for commercial fishes–herring, cod, and flounder. The oceanic province is further divided into zones called the epipelagic, mesopelagic, and bathypelagic zones. The epipelagic zone does not have a high concentration of phytoplankton because of the lack of nutrients. These photosynthesizers, however, still