Dive.Explo360.fr

scientific endorsement
ALEXANDRE MEINESZ

White sertularian hydroid

In Dive.Explo360: Mediterranean

Careful observation of a sea fan or a rock swept by currents sometimes reveals the White sertularian hydroid. Its fine whitish branches shelter a multitude of associated little animals that filter water and contribute to the richness of the underwater environment.

Habitat de White sertularian hydroid Habitat
Alga, Hydroid, Gorgonian, Bryozoan
Profondeur de White sertularian hydroid Depth
5-50 m
Groupe biologique de White sertularian hydroid Group
Cnidarian
Rôle écologique de White sertularian hydroid Role
Predator

WHAT DOES IT LOOK LIKE?

The White sertularian hydroid forms small upright colonies resembling fine whitish bushes. Each colony consists of numerous rigid branches organised into a network. Despite its plant-like appearance, it is a colonial animal composed of many small individuals living together.

WHERE DOES IT LIVE?

It grows attached to different supports: rocks, coralligenous structures or living organisms such as sea fans. It is generally found between a few metres and several tens of metres deep, in areas with currents.

WHAT DOES IT EAT?

This species feeds on tiny organisms suspended in the water. The little polyps making up the colony catch these particles with their tentacles, using the current to bring food within reach.

GO FURTHER WITH AMIGANSEAU

Unlock the full profile

Deepen your knowledge with the exclusive chapters and interactive resources included in an AMIGANSEAU licence.

Choose my licence
  • HOW DOES IT REPRODUCE?
  • OUR OBSERVATIONS
  • UNDERSTAND THE SPECIES

Also included in the full profile

  • Advanced navigation between description, ecological context, observations and behaviour
  • Interactive food chain to explore the species’ feeding relationships
  • Infographic and illustrated summary profile
An active licence gives access to enriched profiles and AMIGANSEAU exploration tools.

Other species — Cnidarian

Burrowing Anemone Dahlia Anemone Snakelocks Anemone Gray sea pen Yellow cluster anemone Fried egg jellyfish Crystal jellyfish Mauve stinger

Same ecological role and depth

Predatory species

🧠 Understand the species

What is this species’ ecological role?

AMIGANSEAU Explorer Premium

Access enriched species profiles with advanced content (audio, infographics and detailed articles).

Explore all species easily through a single interface.

Enjoy a smooth, fast learning experience suited to every level.

🔒 The full profile is available with a paid subscription only.

Discover licences
DEPTH HABITAT PHYLA ECOLOGICAL ROLE

From recognition to understanding

After recognising a marine species, watch it in its environment in the diving videos. Articles and learning paths help you understand its habitat and its relationships with other organisms; games help you remember your discoveries.