Showing posts with label 09 Φύκια και φυτά - Weeds and plants. Show all posts
Showing posts with label 09 Φύκια και φυτά - Weeds and plants. Show all posts

3 Mar 2010

Snail attack!


On the previous post we saw a tiny, lonely Bittium shell balancing over the huge Pina shell!
Very impressive site caught on camera. This picture shows a mass of Bittium shells muching on the seagrass Zostera marina. These masses are more oftenly encountered in the summer months and less likely in the colder months. If you are swimming by quickly it looks like the seaweed is dirty, but look a little closer and you will see so many tiny little shells, of all colors!
It is a pity the photo was not very clear, but it is very hard for me to focus on something so small with seaweed everywhere. By the end of this summer season expect to find a big variety of miniscule shells that live in the Greek waters. I have collected their dead shells all my life, now is the time for the live animals...stay tuned!

21 Oct 2009

Posidonia fragile heaven





The Posidonia meadows are a key marine coastal ecosystem for the Mediterranean. These flowering plants are the longest living organism of our seas, with a growth rate of 1 cm per year! In this picture we can see some of the hundreds of plant and animal species that live and breed within the meadows. This particular meadow is in Nikiti on a reef 2 miles offshore. Because the top of the reef is very shallow, no commercial fishermen fish on it, but around it, allowing the roots of the plant to be covered by very delicate species of bryozoans and red coralline algae. A bit further along a small Octopus vulgaris was finding refuge in the jungle of seaweed!
This is the beauty of unspoiled and undisturbed Posidonia oceanica meadows, protecting them is as vital as the sea is to the planet.