Archive | March, 2007

Peacock Worm (Sabella pavonina)

28 Mar


These are facinating to watch. I think it was the first time my dive buddy Kevin had seem them. When i showed them to him he was like a kid having discovered something new for the first time. He kept swimming up to them and touching them just to watch them retract.

For those of you interested heres some information about them. (Sabella), any of a genus of segmented marine worms of the class Polychaeta (phylum Annelida). This type of fanworm (Sabella pavonina) lives in a tube about 30 to 40 centimetres (12 to 16 inches) long that is open at one end and constructed of mud particles cemented together by mucus. All but the top few centimetres of the tube is buried in the substratum. The front end of the worm has a fan of striped feathery tentacles, used for feeding and respiration, that protrudes from the tube into the overlying seawater. Inorganic and organic particles suspended in the water are trapped in mucus secreted by the tentacles. They are then transported down the tentacles by beating cilia and used either for tube building or passed into the mouth as food. Peacock worms rapidly withdraw their tentacles into the safety of the tube when predators approach. These worms are found both in the intertidal zone and in shallow subtidal areas.

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The Thesis, Oban

26 Mar

[blip.tv ?posts_id=183974&dest=71713]

Just home form a 2 day dive trip to Oban, the Sound of Mull. Had 4 great dives including, the Hispania, The Shuna, The Thesis and the Breda. The Thesis was by far the best conditions, probably because it lies on a shingle bottom, so no silt. The highlight of the dive was swimming around inside the hull at the bow. There are large openings making it very safe for minor penetration. Technically it is an overhead environment, but as you are never more than a few fin kicks from the holes in the hull the risk is minimal. It is quiet surreal to watch people HID torches bouncing around inside the wreck when you are swimming outside or vice-versa. I can imagine it being even better with alot of fish life around. When do they all get back from their vacation??? anyone….

Found this video too on Youtube, enjoy http://www.youtube.com/watch?v=OADIO4uBE_0

Morros Macuey, Huatulco, Mexico

7 Mar

[blip.tv ?posts_id=167551&dest=71713]

This gives a good indication of the type of diving off the pacific coast in Mexico in March. Unfortunately the conditions weren’t great, but there was plenty of life around. I did actually see two sea horses in the wild on the previuos dive, but alas I di

This video was originally shared on blip.tv by waveneyavenue with a Creative Commons Attribution-NonCommercial-NoDerivs license.
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