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Pennaria disticha – Idroide piumato – Christmas tree hydroid – www.intotheblue.it – www.intotheblue.link-2025-05-20-11h46m37s389
15
02:52

Christmas tree hydroid - Idroide piumato

Pennaria disticha, also known as the Christmas tree hydroid, is a species of athecate hydroid in the family Pennariidae. Colonies are common in the Mediterranean Sea growing on rocks close to the surface. This species has been used in research into prey capture. Colonies of Pennaria disticha consist of numerous much-branched stems up to 30 cm high. The branching system is alternate.
Fanino Cirivasi
54
0
Cassiopea mediterranea Cotylorhiza tuberculata-Rhizostoma pulmo-Polmone di mare-2024-08-15-17h57m01s469
19
05:15

Mediterranean increasingly warm: record temperatures and jellyfish

We are now facing a real tropicalization of the Mediterranean Sea which is leading to a too rapid and rapid change of this ecosystem, so we are increasingly witnessing an invasion of alien species, explosions of mucilage and toxic algae, a decrease in native fish species, a reduction in fishing and catches and, as can be seen from these images, a proliferation of jellyfish ...
Andrea Cirivasi
292
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Mucillagine-2024-08-13-17h47m51s237
22
09:38

Mucillage and Toxic algae Ostreopsis ovata

Also in this year we are witnessing the now common and usual phenomenon of the inflorescence of marine mucilage along the coasts of our sea. At the same time as the mucilage, however, an excessive proliferation of the microalgae Ostreopsis cf. Ovata. Qhese two phenomena should not be connected or at least should not occur at the same time so frequently.
Admin
598
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