Chrysaora plocamia

The South American sea nettle (Chrysaora plocamia) is a species of jellyfish from the family Pelagiidae.[1] It is found from the Pacific coast of Peru, south along Chile's coast to Tierra del Fuego, and north along the Atlantic coast of Argentina, with a few records from Uruguay.[2][3] Despite its common name, it is not the only sea nettle in South America; C. lactea ranges along the Atlantic coast of the continent, but generally further north than C. plocamia.[2] Historically, C. plocamia was often confused with C. hysoscella,[3] a species now known to be restricted to the northeast Atlantic.[2] C. plocamia is a large jellyfish, up to 1 m (3 ft 3 in) in bell diameter,[2] although most mature individuals only are 25–40 cm (10–16 in).[3]

South American sea nettle
A South American sea nettle at Monterey Bay Aquarium in 2014
Scientific classification
Kingdom: Animalia
Phylum: Cnidaria
Class: Scyphozoa
Order: Semaeostomeae
Family: Pelagiidae
Genus: Chrysaora
Species:
C. plocamia
Binomial name
Chrysaora plocamia
(Lesson, 1830)

Reproduction

The South American sea nettle is highly evolved, specifically within their sexual reproductive strategies.[4] They have to undergo bodily changes in order to experience both sexual and asexual reproduction then go through a process called strobilation.[5]

References
  1. "WoRMS - World Register of Marine Species - Chrysaora plocamia (Lesson, 1830)". www.marinespecies.org. Retrieved 2018-01-30.
  2. Morandini, André; Marques, Antonio (2010). "Revision of the genus Chrysaora Péron & Lesueur, 1810 (Cnidaria: Scyphozoa)". Zootaxa. 2464: 1–97.
  3. Schiariti, A.; M.S. Dutto; D.Y. Pereyra; G.F. Siquier; A.C. Morandini (2018). "Medusae (Scyphozoa and Cubozoa) from southwestern Atlantic and Subantarctic region (32-60°S, 34-70°W): species composition, spatial distribution and life history traits". Lat. Am. J. Aquat. Res. 46 (2): 240–257. doi:10.3856/vol46-issue2-fulltext-1.
  4. Campos, Leonardo; González, Karina; Ceh, Janja (2020-09-18). "First report of a precocious form of strobilation in a jellyfish, the South American Pacific sea nettle Chrysaora plocamia". Marine Biodiversity. 50 (5). doi:10.1007/s12526-020-01106-3. ISSN 1867-1616.
  5. Ceh, Janja; Riascos, Jose M. (2017-05-01). "Cryptic life stages in scyphozoan jellyfish: Larval settlement preferences of the South American sea nettle Chrysaora plocamia". Journal of Experimental Marine Biology and Ecology. 490: 52–55. doi:10.1016/j.jembe.2017.02.007. ISSN 0022-0981.


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