Velella velella - Sea raft

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Velella velella, barchetta di San Pietro o di San Giovanni, idrozoi, Porpitidae, cnidari – intotheblue.it

Velella velella, sea raftby-the-wind sailorpurple saillittle sail, is a colony of hydrozoans of the Porpitidae family. It is often found in all oceans, on the banks or at most 1-2 cm deep in the water, with a preference for warm or temperate waters.

Velella velella, barchetta di San Pietro o di San Giovanni, idrozoi, Porpitidae, cnidari - intotheblue.it

Velella velella, barchetta di San Pietro o di San Giovanni, idrozoi, Porpitidae, cnidari – intotheblue.it

 

Like other cnidarians (coelenterates), Velella velella is a carnivorous animal. It captures its prey, generally plankton, through the tentacles that contain toxins. These toxins, although effective against prey, are harmless to humans, since they cannot penetrate the skin and do not cause any reaction to human skin.

Velella velella, cnidari - intotheblue.it

Velella velella, cnidari – intotheblue.it

 

We tried to film it in spite of the unfavorable conditions, sea with a rather formed wave, little light due to the cloudy sky, and low visibility in the water due to an attenuating storm. Slowing down the video we were able to get a few seconds of video in which we can see the jellyfish quite well.

Velella velella, cnidari - intotheblue.it

Velella velella, cnidari – intotheblue.it

 

 

Informazioni sull'autore / About the author:
Andrea Cirivasi Andrea Cirivasi ha scritto / wrote 91 articoli / Posts.
Questo articolo è stato scritto il / This article was written on 01/05/2019
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