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Cyanea capillata
(Linnaeus, 1758)
Jan Roar Gjersvold Cyanea CapillataStuart Pearce Beauty :)
Jan Roar Gjersvold :)
Message posted on The Global Diving Community on 15 Sep 2013
Pat Gunderson Phacellophora camtschatica eating Cyanea capillata
Nikon D7000 16 mm nikon f2.8, 1.4 teleconverter 2 YS 250 strobes, Subal housing
f 6.3 1/100 sec iso 200
Hood Canal WA USAMessage posted on UW photo - Fotosub on 27 Jun 2013
Erling Svensen Just want you to see how nice it can be in minus 1,7 C at Svalbard, Norway. Lots of Gersemia corals and Gorgonocephalus and many other nice things.Becky Hitchin gorgeous!
Andy Horton I have changed my computer wallpaper to the top one. Must be a good view.
Penny Martin I have spent some time in Svalbard in 2009 and 2010 but never thought of diving there ... where were you ... near to Longyearbyen ??
Penny Martin and how deep ??
Keith Hiscock So, you know where the good reef diving sites are: will you write the guide please?
Andy Horton Are the anemone-like looking critters the Gersemia corals ? Or are they anemones?
David Kipling Do you mean the basket star in the top pic or those light brown large blobs to the right in the bottom pic, Andy?
Andy Horton Not the Gorgon!
Andy Horton I have got the top picture as my wallpaper. Because of the sea anemones and echinoderm.
David Kipling So the lower blobs then ;)
Andy Horton So what sea anemones are they?
David Kipling I have no idea - some weird and wonderful coldwater species I expect ;)
Andy Horton Urticina eques ?
Cath Waller Fantastic images. Would love to dive there. Out of interest what is the intertidal fauna (if any) like? Be an interesting comparison with southern polar.
Erling Svensen Hi everybody. I have been diving all around Svalbard on cruise with the University. The best diving are at Sagaskjeret in Isfjord and in Hinlopen on the East side. The anemones are Urticina eques, also commen here in Egersund. The Gersemia corals are brown, white, yellow and red and there are two kinds. The best stuff starts at 10 meter and down where the ice not is hard to the biology in the winter. Have you seen my book about the biology in Svalbard? I van make an album one day with cold water stuff from Svalbard if you want.
Andy Horton My guess is intertidal fauna is exiguous because of the meltwater, abrasive nature of ice and the extreme cold. Urticina eques, I have seen and the anemones do not match exactly but close. There is a sea anemone with a generic name beginning with B but that does not match either.
Andy Horton I think the explanation of the difference is that Urticina felina is sometimes identified as Urticina eques. This would certainly be true if these are typical U. eques.
Erling Svensen The u. eques at Svalbard grow to 30cm+ in diameter, and I have nice pictures with eggs inside the arms. Also the Urticina felina grows very big in the cold water, and the Cyanea capillata can be 2 meter in disk diameter and they lives for at least 3 years. So svalbard is special and a nice place to dive.
Erling Svensen If you want high res. pictures for desktop or what ever, just mail me and I can send some.
Andy Horton Erling Svenson: thanks. My computer equipment does not need a better picture right now. It is a bit late at night for me right now. Thinking though about the differences between A eques and U felina apart from size. The tentacles in the photograph are not so stubby and thick in dimension as I would normally expect from Urticina. The eggs U eques picture would be most interesting. I do not have a record of the reproduction in U felina. I think I read somewhere it is noted as probably sexual.
Andy Horton I have seen Urticina of 20 cm diameter at the Dove Laboratory Aquarium at Cullercoats, Newcastle-upon-Tyne. Rare colour schemes. And no warts on the column.
Andy Horton The group photograph shows the U felina I normally see with tubercules (if that is the right term?) on the column that attach gravel. But I do not know if this is definitive? I have got an older book (British Anthozoa by Dick Manuel) but my eyes get tired late at night.
Erling Svensen Erling Svensen 3 years at least for Cyanea, and more than 30 cm for eques. In Svalbard the armes are more slim than the ones we have here, and they looks quite different. I better go to sleep to, quite late in Norway now.
Andy Horton Dark even in Svalbard?
Erling Svensen 3 months with complete darkness and 3 months in summer with midnithg sun. Right now very nice with midnight sun and fine conditions. Even in Egersund it do not get dark - really dark in the nights.
Message posted on British Marine Life Study Society on 19 Jul 2012