Editing Copepod (section)

===Diet===
Most free-living copepods feed directly on [[phytoplankton]], catching cells individually. A single copepod can consume up to 373,000 phytoplankton per day.<ref>{{Cite web |url=https://vineyardgazette.com/news/2018/04/26/small-beautiful-especially-copepods |title=Small Is Beautiful, Especially for Copepods - The Vineyard Gazette |access-date=2018-09-07 |archive-url=https://web.archive.org/web/20180907183250/https://vineyardgazette.com/news/2018/04/26/small-beautiful-especially-copepods |archive-date=2018-09-07 |url-status=live }}</ref> They generally have to clear the equivalent to about a million times their own body volume of water every day to cover their nutritional needs.<ref>{{Cite journal |url=https://academic.oup.com/plankt/article/33/5/677/1482868 |title=What makes pelagic copepods so successful? - Oxford Journals |journal=Journal of Plankton Research |date=May 2011 |volume=33 |issue=5 |pages=677–685 |doi=10.1093/plankt/fbq159 |access-date=2018-09-02 |archive-url=https://web.archive.org/web/20180902084531/https://academic.oup.com/plankt/article/33/5/677/1482868 |archive-date=2018-09-02 |url-status=live |last1=Kiørboe |first1=Thomas }}</ref> Some of the larger species are predators of their smaller relatives. Many benthic copepods eat organic detritus or the bacteria that grow in it, and their mouth parts are adapted for scraping and biting. Herbivorous copepods, particularly those in rich, cold seas, store up energy from their food as oil droplets while they feed in the spring and summer on [[Algal bloom|plankton blooms]]. These droplets may take up over half of the volume of their bodies in polar species.  Many copepods (e.g., fish lice like the [[Siphonostomatoida]]) are parasites, and feed on their host organisms. In fact, three of the 10 known orders of copepods are wholly or largely parasitic, with another three comprising most of the free-living species.<ref>{{cite journal|last1=Bernot|first1=J.|last2=Boxshall|first2=G.|last3=Crandall|first3=L.|title=A synthesis tree of the Copepoda: integrating phylogenetic and taxonomic data reveals multiple origins of parasitism|journal=PeerJ|date=August 18, 2021|volume=9|pages=e12034 |pmid=34466296|doi=10.7717/peerj.12034| pmc=8380027|doi-access=free }}</ref>