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Baltic isopod

size:

males 3 centimeters, females 2 centimeters

color:

green, yellow, brown-red or black

food:

small crustaceans and algae

enemies:

small fish such as the fifteen-spined stickleback

reproduction:

sexual

  • Dut: Gewone zeepissebed
  • Lat: Idotea balthica
  • Eng: Baltic isopod
  • Ger: Meerassel
Baltic isopod, Foto Fitis, www.fotofitis.nl

Baltic isopod

Baltic isopods live on the bottom of the seabed, between seaweed and eelgrass, and haul oxygen out of the seawater. They eat rotting seaweed. You can also find them on the beach between washed up seaweed. There are various species of isopods that are difficult to tell apart. They are usually best recognized by the shape of the hind shield. Baltic isopods have three thorns on their tail plate.

  • Distribution and habitat
    Idotea granulata, foto fitis, sytske dijksen

    Baltic isopods are common along the entire Dutch coast. They live in shallow water on the bottom, where you often find them among the seaweed and stones. You may also run into them swimming along the coast. Sometimes, they are among washed up seaweed on the beach.