Sea Nettle: Chrysaora melanaster
The largest jellyfish of the Arctic
* bell upto 60cm
* tentacles and lips may stretch more than 3 m
Color & Characteristics
* Color: white, brown to orange stripes
* 24-32 long orange-red tentacles
* 4 long curtain-like lips
* 8 marginal rhophilia (sense organ), spaced between 32 lappets
* 16 dark brown/black radiating streaks on subumbrella between 8 stomach pouches
* tentacles can produce a nasty sting to humans
* Epiplegic (surface waters) to ~100 m depth
* Nertic (shelves) and over basins
* Commonly observed by divers or ROVs, its abundance to and size make it rare to capture in plankton nets
* Benthic form has not been observed in the Arctic, suggesting the species may be seasonally imported from the subarctic
* Diet includes copepods, larvaceans, other jellies, larger zooplankton and small fish
* An obligate benthic phase, that strobulates (buds) to release ephra larvae
* larvae mature into adult body-form that releases eggs and sperm
* Fertilized eggs settle to seafloor to prooduce a small non-colonial benthic form
* Life span in Arctic unknown, possibly only one season
The ones we have at the Berlin aquarium have bells only about 15cm.
Please respect my work.
If you want to use my pictures just contact me. I´m a nice one & it won´t hurt, probably.
All images are copyright protected. They may not be printed from the screen, copied, distributed, published or used for any commercial or other purpose without my written consent, which I´ll give you gladly as long as you´ll ask nicely.