Visitor questions about jellyfish
How do jellyfish reproduce?
There are so many different kinds of jellyfish that it is hard to describe all the variations of reproduction. Typically, male and female gametes will come together (either in the water or inside the female jellyfish), then that will grow into a small larva called a planula. Depending on the type of jellyfish, this can either develop into a tiny jellyfish, or it can settle on the bottom to form a polyp -- basically a stalk that can divide off little medusae asexually.
For more information about reproduction look at the life cycle diagram at this link, but keep in mind that this does not apply to all the different kinds of jellies.
Other related projects around the world
|General||:||The Scyphozoan WIki|
|Western Mediterranean||:||Projecte Medusa • Identification Guide|
|Mediterranean||:||CIESM (includes ID card)|
|French Mediterranean||:||ACRI (includes map for reports)|
|French Mediterranean||:||Côte d'Azur (esp. Pelagia)|
|Malta, Mediterranean||:||Spot the Jellyfish (activities and sightings)|
|Israel (also in Arabic)||:||CIESM Jellywatch • Identification Poster|
|Eastern Pacific + California||:||Jellies Zone|
|Gulf of Mexico||:||DockWatch|
|Chesapeake Bay||:||Sea Nettles|
|Irish Sea||:||ECOjel project and Jellyfish ID Card|
|British Isles||:||Jellyfish Tracking|
|South Africa||:||SA Jellywatch|
|Colombia||:||Proyecto Medusas and their Facebook Page|
|Black Sea and Turkey||:||Black Sea|
|Australia||:||Queensland Marine Stinger Advisory Committee|
|Australian Museum - Cnidarians|
Other sites of interest
(This includes commercial sites, with whom we have no affiliation.)
|Jellyfish Aquaculture||:||Jellyfish Aquarist|
|Jellyfish Aquariums||:||Jellyfish Art|
|Jellyfish Jewelry||:||Misc. Etsy galleries|
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