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Star ascidian

size:

colonies up to 10 centimeters

color:

usually purple, sometimes pink or brown

food:

plankton

enemies:

sometimes wrasse and crabs

reproduction:

sexual and by forming buds

  • Dut: Gesterde geleikorst
  • Lat: Botryllus schlosseri
  • Eng: Star ascidian
  • Ger: Stern-Ascidie
Star ascidian, Foto Fitis, www.fotofitis.nl

Star ascidian

As the name says, the star ascidian is star-shaped. Each point of the star is an animal and the center of the star is their joint waste hole. Star ascidians are the most common colony-forming sea squirts present in the Netherlands. They look like sturdy, smooth, cartilaginous crust, covered with star-shaped figures. In the delta region, there are more species of colony-forming sea squirts. They were carried here in the 1970s-1990s by ships and when mussel and oyster fishermen transported shellfish.

  • Distribution and habitat

    Star ascidians are found in the Wadden Sea, North Sea and delta region, particularly on ropes, buoys, tires in yacht harbors, wrecks, legs of drilling platforms and other such hard surfaces.