Talk:Ascidiacea

The Sea Squirt does have a brain

For a while as explained by Dr. Daniel Wolpert. TED video here: https://www.youtube.com/watch?v=7s0CpRfyYp8&feature=youtu.be

Basically the Sea Squirt eats its own brain after settling down somewhere. Could be beneficial to add it to the article. — Preceding unsigned comment added by 204.156.83.80 (talk) 16:06, 14 April 2016 (UTC)

Comment

I added the information that some ascidians are eaten in some countries. Aside from my personal knowledge of their being eaten in Japan, my source is the Japanese wikipedia article on sea squirts. I've added that as a reference, but I'm not sure if that is the right way to do this. Perhaps some more experienced wikipedian can change this if it isn't the correct way to cross-reference.Bill 03:50, 2 July 2006 (UTC)

"Kowalesky" per letter of Thomas Huxley

Can anybody track down / make any necessary redirects / start article if necessary for "Kowalesky" per letter of Thomas Huxley [1] - "Kowalesky could never have announced his great discovery of the affinity of the Ascidians and Vertebrates, by which zoologists had been startled." -- May be AKA "Kowalski", but I can't find a likely reference. -- (Hmm, Kazimierz Kowalski? - in which case we need an article.) -- Writtenonsand 14:06, 27 September 2007 (UTC)

If anyone's still interested, it was Alexander Kowalevsky. See Evolutionary developmental biology#Evolutionary morphology. Chiswick Chap (talk) 19:50, 10 October 2016 (UTC)

New species

NEW SPECY FOUND OFF AUSTRALIA, PLEASE INCLUDE ON PAGE http://news.yahoo.com/nphotos/One-Australia39s-deepest-residents-carnivorous-sea-squirt-ascidian-standing-half/photo//090118/photos_sc_afp/3d0d6adfb6d1adbd7de2de9172f3a747//s:/afp/20090118/sc_afp/scienceoceansanimalswarmingaustralia —Preceding unsigned comment added by 66.213.29.2 (talk) 20:03, 18 January 2009 (UTC)

cdna count =

It's rather 1.2 Million cdnas, right? See [NCBI. Have not changed the page yet, though Maximilianh (talk) 15:25, 25 August 2009 (UTC)

File:Seasquirt.jpg to appear as POTD soon

Hello! This is a note to let the editors of this article know that File:Seasquirt.jpg will be appearing as picture of the day on April 21, 2012. You can view and edit the POTD blurb at Template:POTD/2012-04-21. If this article needs any attention or maintenance, it would be preferable if that could be done before its appearance on the Main Page so Wikipedia doesn't look bad. :) Thanks! —howcheng {chat} 18:25, 20 April 2012 (UTC)

Picture of the day

A nudibranch (Nembrotha lineolata, right) lays eggs in a spiral pattern on a sea squirt (Polycarpa aurata). Sea squirts are sessile filter feeding marine animals found in shallow waters throughout the world's oceans. They are the natural prey of many animals and are consumed by humans as well.Photo: Nick Hobgood

Broken links

Two links were broken. I left the references but deleted the links. — Preceding unsigned comment added by 99.9.112.31 (talk) 17:42, 30 December 2012 (UTC)

Homeobox gene experiment.

There have been experiments where ordinary seasquirts have been altered in one position in one homeobox gene. That resulted in their hearts changing from one-chambered to two-chambered and starting to pump blood in the same way as fish. Can anyone find the specific reference(s) for this and add it to the article?109.58.147.35 (talk) 08:33, 5 August 2013 (UTC)

Found this popular article on the topic: http://www.sciencedaily.com/releases/2006/09/060930094021.htm

The relevant paper is: Davidson B, Shi W, Beh J, Christiaen L, Levine M (2006) FGF signaling delineates the cardiac progenitor field in the simple chordate, Ciona intestinalis. Genes and Development 20(19):2728-38.

I'll leave it to a biologist to determine if this is worth including. 0x0077BE (talk) 23:03, 9 February 2014 (UTC)

paraphyletic

According to the tunicates article, "newer evidence suggests the Ascidiacea are an artificial group of paraphyletic status.[15][16]". Most of the content of this article (e.g. anatomy sections, colonialism, reproduction, life cycle, ecology and fossil record) is likely to be nonspecific to ascidians. Shouldn't most sections of material be moved into tunicates, and the lead be updated to reflect the current best information on classification? Cesiumfrog (talk) 23:17, 10 June 2014 (UTC)

Possibly incorrect link

In this revision of the article, a link to siphon (mollusc) was added, although tunicates are not molluscs. Can this link be replaced with something more accurate? Jarble (talk) 19:24, 10 October 2016 (UTC)

Yeah it was wrong. I've added a brief gloss - it's a tube. The anatomy is explained in the article. Chiswick Chap (talk) 19:47, 10 October 2016 (UTC)

Sea squirt redirects

Sea squirt redirects to Ascidiacea, while Sea squirts, Sea Squirt and Sea Squirts redirect to Tunicate. I have propose that the latter three be retargetted so all point to Ascidiacea - you are invited to the discussion at Wikipedia:Redirects for discussion/Log/2018 September 17#Sea squirt. Please leave any comments there to keep discussion in one place. Thryduulf (talk) 01:10, 17 September 2018 (UTC)

õne eye or two?

do the larvae have one eye or two? is this a top-down view, or from the side? —Soap— 04:42, 7 December 2020 (UTC)