Ctenophora predation by ctenophores may control the populations of small zooplanktonic organisms such as copepods, which might otherwise wipe out the phytoplankton (planktonic plants), which are a vital part of marine food chains. Almost all ctenophores are predators – there are no vegetarians and only one genus that is partly parasitic. If food is plentiful, they can eat 10 times their own weight per day. While "Beroe" preys mainly on other ctenophores, other surface-water species prey on zooplankton (planktonic animals) ranging in size from the microscopic, including mollusc and fish larvae, to small adult crustaceans such as copepods, amphipods, and even
Food Chains (film) documentary about the same topic. He concluded that "Food Chains" was 'simultaneously inspirational and deeply depressing.' Writing for the "San Francisco Chronicle", Tara Duggan added that there were 'many chilling moments' in the documentary. In "The New York Daily News", Elizabeth Weitzman called the documentary 'unsettling,' concluding 'you will certainly leave the theater more enlightened than when you arrived.'. Jeannette Catsoulis of the New York Times called the film 'rousing' and 'emphatic and empathetic.'. Food Chains (film) Food Chains is a 2014 American documentary film about agricultural labor in the United States directed by Sanjay Rawal. It was the Recipient