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 other intervention actions also states «"the development of short food chains and facilitation of geographical proximity between producers and processors". » Farmers' markets, are physical retail markets featuring foods sold directly by farmers to consumers. Community-supported agriculture (CSA), network or association of individuals who have pledged to support one or more local farms, with growers and consumers sharing the risks and benefits of food production. The URGENCI network federates initiatives of CSA from all over the world. AMAP ("French Associations pour le maintien d'une agriculture paysanne") support peasant and organic agriculture through direct links between farmers and consumers Short food