# Calanoida > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Calanoida > Markdown URL: https://mediated.wiki/source/Calanoida.md > Source: https://en.wikipedia.org/wiki/Calanoida > Source revision: 1312308602 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) Order of crustaceans Calanoida Unidentified species of copepod in the order Calanoida. Scientific classification Kingdom: Animalia Phylum: Arthropoda Clade: Pancrustacea Class: Copepoda Infraclass: Neocopepoda Superorder: Gymnoplea Giesbrecht, 1882 [1] Order: Calanoida Sars, 1903 Families See text **Calanoida** is an [order](/source/Order_(biology)) of [copepods](/source/Copepod), a group of arthropods commonly found as [zooplankton](/source/Zooplankton). The order includes around 46 families with about 1800 species of both marine and [freshwater](/source/Fresh_water) [copepods](/source/Copepod) between them.[2] ## Description Calanoids can be distinguished from other planktonic copepods by having first [antennae](/source/Antenna_(biology)) at least half the length of the body and [biramous](/source/Arthropod_leg#Biramous_and_uniramous) second antennae.[2] However, their most distinctive anatomical trait is the presence of a joint between the fifth and sixth body segments.[3] The largest specimens reach 18 millimetres (0.71 in) long, but most do not exceed 0.5–2.0 mm (0.02–0.08 in) long.[2] ## Classification The order Calanoida contains the following families:[4] - [Acartiidae](/source/Acartiidae) - [Aetideidae](/source/Aetideidae) - [Arctokonstantinidae](https://en.wikipedia.org/w/index.php?title=Arctokonstantinidae&action=edit&redlink=1) - [Arietellidae](/source/Arietellidae) - [Augaptilidae](/source/Augaptilidae) - [Bathypontiidae](/source/Bathypontiidae) - [Calanidae](/source/Calanidae) - [Candaciidae](/source/Candaciidae) - [Centropagidae](/source/Centropagidae) - [Clausocalanidae](/source/Clausocalanidae) - [Diaixidae](/source/Diaixidae) - [Diaptomidae](/source/Diaptomidae) - [Discoidae](/source/Discoidae) - [Epacteriscidae](/source/Epacteriscidae) - [Eucalanidae](/source/Eucalanidae) - [Euchaetidae](/source/Euchaetidae) - [Fosshageniidae](/source/Fosshageniidae) - [Heterorhabdidae](/source/Heterorhabdidae) - [Hyperbionycidae](/source/Hyperbionycidae) - [Kyphocalanidae](https://en.wikipedia.org/w/index.php?title=Kyphocalanidae&action=edit&redlink=1) - [Lucicutiidae](/source/Lucicutiidae) - [Megacalanidae](/source/Megacalanidae) - [Mesaiokeratidae](/source/Mesaiokeratidae) - [Metridinidae](/source/Metridinidae) - [Nullosetigeridae](/source/Nullosetigeridae) - [Paracalanidae](/source/Paracalanidae) - [Parapontellidae](/source/Parapontellidae) - [Parkiidae](/source/Parkiidae) - [Phaennidae](/source/Phaennidae) - [Pontellidae](/source/Pontellidae) - [Pseudocyclopidae](/source/Pseudocyclopidae) - [Pseudocyclopiidae](/source/Pseudocyclopiidae) - [Pseudodiaptomidae](/source/Pseudodiaptomidae) - [Rhincalanidae](/source/Rhincalanidae) - [Rostrocalanidae](https://en.wikipedia.org/w/index.php?title=Rostrocalanidae&action=edit&redlink=1) - [Ryocalanidae](/source/Ryocalanidae) - [Scolecitrichidae](/source/Scolecitrichidae) - [Spinocalanidae](/source/Spinocalanidae) - [Stephidae](/source/Stephidae) - [Sulcanidae](/source/Sulcanidae) - [Temoridae](/source/Temoridae) - [Tharybidae](/source/Tharybidae) - [Tortanidae](/source/Tortanidae) ## Ecology Calanoid copepods are the dominant animals in the [plankton](/source/Plankton) in many parts of the world's oceans, making up 55–95% of plankton samples.[2] They are therefore important in many food webs, taking in energy from [phytoplankton](/source/Phytoplankton) and [algae](/source/Algae) and 'repackaging' it for consumption by higher [trophic level](/source/Trophic_level) predators.[2] Many commercial fish are dependent on calanoid copepods for diet in either their [larval](/source/Larva) or adult forms. [Baleen whales](/source/Baleen_whale) such as [bowhead whales](/source/Bowhead_whale), [sei whales](/source/Sei_whale), [right whales](/source/Right_whale) and [fin whales](/source/Fin_whale) rely substantially on calanoid copepods as a food source.[2] ## References 1. **[^](#cite_ref-Martin_&_Davis_1-0)** J. W. Martin & G. E. Davis (2001). [*An Updated Classification of the Recent Crustacea*](https://web.archive.org/web/20190908234116/https://atiniui.nhm.org/pdfs/3839/3839.pdf) (PDF). [Natural History Museum of Los Angeles County](/source/Natural_History_Museum_of_Los_Angeles_County). Archived from [the original](http://atiniui.nhm.org/pdfs/3839/3839.pdf) (PDF) on 8 September 2019. 1. ^ [***a***](#cite_ref-Mauchline_2-0) [***b***](#cite_ref-Mauchline_2-1) [***c***](#cite_ref-Mauchline_2-2) [***d***](#cite_ref-Mauchline_2-3) [***e***](#cite_ref-Mauchline_2-4) [***f***](#cite_ref-Mauchline_2-5) Mauchline, John (1998). ["Introduction"](https://books.google.com/books?id=fbsrq6CvYkAC&pg=PA4). *The Biology of Calanoid Copepods*. Advances in Marine Biology. Vol. 33. [Elsevier](/source/Elsevier). pp. 1–15. [ISBN](/source/ISBN_(identifier)) [978-0-12-105545-5](https://en.wikipedia.org/wiki/Special:BookSources/978-0-12-105545-5). 1. **[^](#cite_ref-IZ_3-0)** Barnes, Robert D. (1982). *Invertebrate Zoology*. Philadelphia, Pennsylvania: Holt-Saunders International. p. 692. [ISBN](/source/ISBN_(identifier)) [0-03-056747-5](https://en.wikipedia.org/wiki/Special:BookSources/0-03-056747-5). 1. **[^](#cite_ref-4)** ["WoRMS - World Register of Marine Species - Calanoida"](https://www.marinespecies.org/aphia.php?p=taxdetails&id=1100). *www.marinespecies.org*. Retrieved 8 December 2024. ## External links - Media related to [Calanoida](https://commons.wikimedia.org/wiki/Category:Calanoida) at Wikimedia Commons - Data related to [Calanoida](https://species.wikimedia.org/wiki/Calanoida) at Wikispecies - [Calanoida fact sheet – guide to the marine zooplankton of south eastern Australia](https://web.archive.org/web/20111004050233/http://www.tafi.org.au/zooplankton/imagekey/copepoda/calanoida/) - [Classification of Calanoida](http://www.miljolare.no/data/ut/art/?lang=eng&or_id=1879) - [Key to calanoid copepod families](https://web.archive.org/web/20130618054223/http://www.crustacea.net/crustace/calanoida/) v t e Plankton About plankton Algal bloom CLAW hypothesis High lipid content microalgae Holoplankton Marine microorganisms Meroplankton Mycoplankton Milky seas effect Paradox of the plankton Planktivore Planktology Red tide Spring bloom Thin layers More... By size Eukaryotic picoplankton Heterotrophic picoplankton Marine microplankton Microphyte (microalgae) Nanophytoplankton Photosynthetic picoplankton Picobiliphyte Picoeukaryote Picoplankton Bacterioplankton Aeromonas salmonicida Cyanobacteria Cyanobiont Cyanotoxin Enteric redmouth disease Flavobacterium Flavobacterium columnare Pelagibacter ubique Marine bacteriophage SAR11 clade Streptococcus iniae Phytoplankton Auxospore Axodine Bacteriastrum Chaetoceros Chaetocerotaceae Coccolithophore Emiliania huxleyi Eustigmatophyte Frustule Stramenopile Nannochloropsis Navicula Prasinophyceae Raphidophyte Thalassiosira pseudonana Diatom orders Centrales Pennales Classes: Coscinodiscophyceae Fragilariophyceae Bacillariophyceae Flagellates Brevetoxin Choanoflagellates Dinoflagellates Flagellum Pfiesteria piscicida Saxitoxin Symbiodinium Velvet (fish disease) Zooplankton Chaetognatha Ciguatera Ctenophora Gelatinous zooplankton Ichthyoplankton Jellyfish Marine larvae Crustacean larvae Salmon louse Sea louse Copepod orders Calanoida Canuelloida Cyclopoida Gelyelloida Harpacticoida Misophrioida Monstrilloida Mormonilloida Platycopioida Siphonostomatoida More... Related topics Aeroplankton Algaculture Algal mat Algal nutrient solutions Artificial seawater Autotrophs Biological pump Diel vertical migration Dimethylsulfoniopropionate f-ratio Fish diseases and parasites Heterotroph HNLC Macroalgae Manta trawl Marine mucilage Microbial mat Ocean acidification Marine microorganisms Marine primary production Pseudoplankton Stromatolite Tychoplankton Zoid C-MORE CPR AusCPR MOCNESS SCAR Taxon identifiers Calanoida Wikidata: Q478553 Wikispecies: Calanoida ADW: Calanoida AFD: Calanoida BOLD: 386 BugGuide: 353390 CoL: 7NF8B EPPO: 1CALAO Fauna Europaea: 13272 Fauna Europaea (new): 0fac524d-2213-4d83-8fa0-12e55c4cfba2 GBIF: 679 iNaturalist: 85507 IRMNG: 12183 ITIS: 85258 NBN: NHMSYS0021050847 NCBI: 6833 NZOR: cbcae132-010a-444b-95c8-a9f05f1f22b0 Open Tree of Life: 461523 Paleobiology Database: 133245 Plazi: 03AFB40F-FFB6-FF91-DE90-F1DFFD611C3C WoRMS: 1100 Gymnoplea Wikidata: Q15875987 Wikispecies: Gymnoplea EoL: 2625035 Fauna Europaea: 13271 Fauna Europaea (new): c5cca95a-41fa-4ca8-b253-df816df7d3d1 ITIS: 610007 NBN: NHMSYS0021050846 NCBI: 116570 Open Tree of Life: 231088 Paleobiology Database: 133246 WoRMS: 155877 Authority control databases National United States France BnF data Israel Other Yale LUX --- Adapted from the Wikipedia article [Calanoida](https://en.wikipedia.org/wiki/Calanoida) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Calanoida?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.