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Breadcrumb sponge

size

crusts up to tens of centimeters large en a few centimeters thick

color

usually yellow, but also orange or green from one-celled algae living in the sponge

food

plankton

enemies

thanks to its bad flavor, hardly consumed at all

reproduction

sexual and asexual

  • Dut: Broodspons
  • Lat: Halichondria panicea
  • Eng: breadcrumb sponge
  • Ger: Brotschwamm, Meerbrot
Breadcrumb sponge, Sytske Dijiksen, www.fotofitis.nl

Breadcrumb sponge

During low tide, you can find this remarkable sponge on jetties and under stones. It usually looks like a thick bready crust with 'volcano' chimneys. Those are the excreting pores. The breadcrumb sponge has a strange smell, similar to exploded gunpowder. In reality, it is a material produced by the sponge itself to keep others from munching on it. Breadcrumb sponge reproduces both sexually and asexually. It releases eggs and sperm into the water, which fuse into larvae and eventually establish themselves as new sponges. Asexually, the sponge pinches off a piece of itself which attaches elsewhere and continues growing as a new sponge. A natural way of cloning.

  • Distribution and habitat

    The breadcrumb sponge is found along all European coasts, between stones and in harbors. It is also found in the Baltic Sea and Mediterranean Sea. It grows in the lower shore zone and shallower areas at low tide.

  • Info

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