Periphylla periphylla

Periphylla periphylla


Ecological Education Centre - HYDROPOLIS

The scyphozoan helmet jellyfish (Periphylla periphylla) is a luminescent, red-colored jellyfish of the deep sea. They grow to 30 cm, and are found at depths of 700 m in every ocean of the world, as well as in the Norwegian fjords and in the Mediterranean Sea. As many other deep sea creatures, the helmet jellyfish is bioluminescent. Periphylla periphylla represents an exceptional life cycle, very rarely found in the phylum Cnidaria: the medusae do not go through a polyp stage, instead they strew fertilized eggs in open water and these develop directly into medusae, whose development rests entirely upon the egg's high yolk supply.

At night the helmet jellyfish leaves the depths and swims up in the water column to feed on plankton. With a full stomach it returns from the surface back to the depths when the sun rises.


Project by ART FM creative team

Exhibit designers:

Łukasz Markiewicz, Awiszaj Hadari (Avishay Ave Hadari)


Video Contents by:





Location: Wrocław, Poland

Year: 2015

Size: 4000 m²

Investor: Municipal Waterworks and Drainage Company Ltd. in Wrocław

Scope: design for the exhibition arrangement, narrative script, interior designs, interactive installation prototype designs, multimedia designs and production

The HYDROPOLIS Environmental Education Center is a unique place, combining education with modern forms of exhibition. The main subject of the exhibition is water – a substance that is everywhere on our planet.

This is a narrative exhibition. Visitors actively take part in the story of the origins of water in the universe, encounter the incredible creatures from the depths of the ocean, and take to the surface to understand its imperative function in the environment and its role in human vital functions. They also learn the history of water engineering, from Antiquity to present-day methods of water management.

HYDROPOLIS is a place where diverse multimedia technologies, art installations, replicas and real-life models serve a common goal: to show water from varied and fascinating perspectives.

A historical 19th-century underground pure water reservoir has been adapted for the purposes of the exhibition.