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Sponge. Esponja

Halichondria semitubulosa

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.

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2 Comments

eulalia rubio
eulalia rubio 3 months ago

Thanks, Isabela.

Isabela
Isabela 3 months ago

Very interesting! And very good photos!

eulalia rubio
Spotted by
eulalia rubio

San Javier, Región de Murcia, Spain

Spotted on Aug 9, 2020
Submitted on Aug 9, 2020

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