Distribution of Okenia zoobotryon

July 31, 1998
From: Andy Cohen

Alana,
Okenia plana, an introduced Japanese nudibranch, is sometimes common in San Francisco Bay. Zoobotryon verticillatum has been collected twice in San Francisco Bay (in 1992 and 1997, at two different sites, and not subsequently found at either site). I've usually found O. plana and its egg masses on Conopeum cf. tenuissimum, an encrusting membraniporine bryozoan--the same or very similar species has been reported from Indian River Lagoon (e.g. Winston 1995 Bull Mar Sci 57(1): 84-93). The cheilostome Conopeum is not closely related to the ctenostome Zoobotryon.

Z. verticillatum is probably an introduced organism in much of its range--probably transported attached to the hulls of ships--and as Bill Rudman points out, O. zoobotryon would be a likely candidate for globe-trotting as well.

Can you tell me, what is O. zoobotryon's distribution? Is it found only on Zoobotryon?

Andy Cohen

acohen@sfei.org

Cohen, A., 1998 (Jul 31) Distribution of Okenia zoobotryon. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/183

Have a look at my comments on Hopkinsia plana... Bill Rudman.

Factsheet

Okenia zoobotryon

Related messages

  1. Re: Eggs of Okenia zoobotryon
    From: Leanne and David Atkinson, February 5, 2009
  2. Re: First record of Okenia zoobotryon from Australia
    From: Leanne & David Atkinson, February 12, 2008
  3. Re: First record of Okenia zoobotryon from Australia
    From: Leanne & David Atkinson, January 31, 2008
  4. Okenia zoobotryon from southeast Florida, USA
    From: Linda Ianniello, October 30, 2007
  5. Re: Radula of Senegalese Okenia zoobotryon [4]
    From: Angel Valdes, June 21, 2006
  6. Re: Radula of Senegalese Okenia zoobotryon [3]
    From: Marina Ossokine, June 19, 2006
  7. Re: Radula of Senegalese Okenia zoobotryon [2]
    From: Angel Valdes, June 17, 2006
  8. Re: Radula of Senegalese Okenia zoobotryon
    From: Angel Valdes, June 16, 2006
  9. Eggs of Okenia zoobotryon
    From: Marina P. Ossokine, June 9, 2006
  10. Radula of Senegalese Okenia zoobotryon
    From: Marina P. Ossokine, June 9, 2006
  11. Okenia zoobotryon from Venezuela
    From: Sylvia Grune, April 11, 2005
  12. Okenia zoobotryon from the Bahamas
    From: Colin Redfern, December 22, 2004
  13. First record of Okenia zoobotryon from Australia
    From: Bill Rudman, December 21, 2004
  14. Okenia zoobotryon? from Senegal
    From: Marina Poddubetskaia, March 8, 2004
  15. Re: Working on Okenia zoobotryon
    From: Dr Kerry B. Clark, May 18, 1998
  16. Working on Okenia zoobotryon
    From: Alana Synhoff , April 9, 1998

Show factsheet and all related messages