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
Short food supply chains Short food supply chains Short food supply chain (SFSCs) is a broad range of food production-distribution-consumption configurations, such as farmers' markets, farm shops, collective farmers' shops, community-supported agriculture, solidarity purchase groups. More in general, a food supply chain can be defined as "short" when it is characterized by short distance or few intermediaries between producers and consumers. SFSCs were originally identified as examples of "resistance" of farmers to modernization of the food system, characterized by the development of supply chains based on long-distance trade. Resistance consists in the fact that, by selling directly to consumers, farmers bypass intermediaries and thus