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Sponge. Esponja
Halichondria semitubulosa
37.724, -0.74707
Field Notes
Description:
Sponge formed by a basal network of thin-walled tubes. It is white, gray or yellow in color.
All sponges are filter fed. Particle-laden water penetrates through pores. Particles suitable for food are digested intracellularly and inorganic particles, such as grains of sand, are expelled through an exhalation channel.
Habitat:
Salty coastal lagoon of the Mar Menor. I have found several sponges on rocks hidden by the green alga Caulerpa prolifera that protects them from the strong sun.
Notes:
Given the totipotency of their cells, all sponges can reproduce asexually from fragments of their body.
· Sponges produce a wide variety of toxins and antibiotics to prevent predation and competition for the substrate.
Reference Links:
poriferos Mediterraneo | mar menor mar mayor
Species ID Suggestions
Spotted for Missions
Photographed
PublishedAugust 9, 2020
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