Showing posts with label feather stars. Show all posts
Showing posts with label feather stars. Show all posts

Thursday, February 14, 2008

Dance of the Feather Stars

Thursday, April 26, 2007

Sea floor life


First sea floor footage filmed with a remotely operated vehicle (ROV) nearby the remnants of the Larsen B ice shelf during the Polarstern ANTXXIII/8 expedition. This second sequence depicts a much richer fauna, comprised of fish, feather stars, brittle stars, sponges, corals and other colonial animals.

We can successively see on this video a rockcod fish (on the left), a giant scaleworm, very rarely seen in Antarctica, and unknown elsewhere

Then it is the turn of a solitary sea squirt (belonging to the Ascidians, filter-feeding animals belonging to one of the invertebrate groups closely related to the vertebrates) and of, in the background, on the left, the first specimens of a pink hydrocoral, very common here, but rare elsewhere in Antarctica.

Other species such as octocoral and feather stars can be seen.

And a white drop stone also (45 sec) in the seafloor, probably coming from the melting of an iceberg!