Chrysaora melanaster

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Chrysaora melanaster
Chrysaora jelly.jpg
Scientific classification e
Kingdom: Animalia
Phylum: Cnidaria
Class: Scyphozoa
Order: Semaeostomeae
Family: Pelagiidae
Genus: Chrysaora
Species: C. melanaster
Binomial name
Chrysaora melanaster
(Brandt, 1835)

The northern sea nettle (Chrysaora melanaster), also called a brown jellyfish, is a species of jellyfish native to the northern Pacific Ocean and adjacent parts of the Arctic Ocean. (It is sometimes referred to as a Pacific sea nettle, but this name is also used for Chrysaora fuscescens; the name Japanese sea nettle was used for this species, but that name now exclusively means Chrysaora pacifica.[1][2] This jelly's medusa can reach 60 centimeters in length with tentacles growing up to three meters.[3][4] The number of tentacles is up to 24 (8 per octant).[1] It dwells at depths of up to 100 meters, where it feeds on copepods, larvaceans, small fish, large zooplankton, and other jellies.[4] The sting is mild, although can cause serious skin irritation and burning.[5]


  1. ^ a b Morandini AC, Marquess AC (2011) Revision of the genus Chrysaora Péron & Lesueur, 1810 (Cnidaria: Scyphozoa). Zootaxa 2464: 1–97
  2. ^ "Fact Sheet: Japanese Sea Nettle" (PDF). Shedd Aquarium. Retrieved January 2012.  Check date values in: |access-date= (help)
  3. ^ CNET news, Chrysaora melanaster, from "Census of Marine Life reveals hidden life in oceans" article (October 5, 2010).
  4. ^ a b "Sea Nettle: Chrysaora melanaster". Census of Marine Life Arctic Ocean Diversity project. August 20, 2010. 
  5. ^ "Jellies Invasion: Explore Online". National Aquarium in Baltimore. Retrieved January 2012.  Check date values in: |access-date= (help)