Can you identify this planktonic organism?

Can you identify this planktonic organism?
Can you identify this planktonic organism?
  • Lieu de prise de vue : Greece, Saronida, Saronic gulf, Attica, near surface depth
  • Date de prise de vue : 13/11/2021
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https://doris.ffessm.fr/Forum/Can-you-identify-this-planktonic-organism-60731

Réf : 60731

Vasilis STERGIOS

Vasilis STERGIOS le 15/11/21

Spotted near the surface, about 500m from shore, in the Saronic gulf. Haven't seen anything simmilar before, so I do not know if I am looking at a bunch of eggs or a pyrosoma colony. As always all suggestions are appreciated.

Vasilis STERGIOS
0

Vasilis STERGIOS le 15/11/21

@Geneviève POIROT

The oval-shaped colony is about 3-4cm in length and lacks the cylindtical tube on which all members of a pyrosoma colony are joined. I believe that last part excludes pyrosoma from the list of available suspects.

Geneviève POIROT
0

Geneviève POIROT le 15/11/21

perhaps a little Pyrosome, Pyrosoma atlanticum.., A confirmer.

Vasilis STERGIOS
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Vasilis STERGIOS le 15/11/21

Thank you so much Pierre for always finding time to help me with my queries! It does indeed look like a Collozoum radiolarian colony.

Pierre NOËL
1

Pierre NOËL le 15/11/21

Bonjour,

peut-être un p'tit gluant ou une espèce voisine?

Voir LE BRIS Sylvain, DECELLE Johan in : DORIS, 11/05/2021 : Collozoum inerme (J. Müller, 1856), https://doris.ffessm.fr/ref/specie/2746

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