Food of Jorunna funebris

May 8, 2001
From: Sylvain LE BRIS


Hi Bill
This is a new picture of Jorunna funebris on a blue sponge. This picture was took in Sichang Is., in the Inner Gulf of Thailand last month, in 2 meter deep. I observed Jorunna funebris on this sponge in all the eastern Gulf of Thailand (Sichang Is., all the islands close to Pattaya, to Chang Is, close to the Cambodian border).

This blue sponge is Xestospongia sp. (identifed by 2 sponge specialists and confirmed by my microscopic obsevation of the spicules).

I wonder if there is a relation between the distribution of Jorunna funebris and the pollution. I observed 2 to 4 Jorunna funebris on each blue sponge in polluted locations whereas only 1 or 2 Jorunna on some blue sponge in non polluted area.

Regards
Sylvain

sylvain.lebris@freesbee.fr

Le Bris, S., 2001 (May 8) Food of Jorunna funebris. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4279

Dear Sylvain,
Thanks for the photo and observations. This looks like one species we have a good idea about its food. I am a bit puzzled about the sponge identification I was given for the juveniles at the (Top of the page). I guess I should get the identification checked again.

Concerning pollution. It is very difficult to 'prove' the significance of observations such as yours without fairly exhaustive sampling and statistical analysis. Often the effects can be very subtle. Your observations are certainly worth mentioning, as they may fit with observations someone else has had, or even inspire a student or research worker to undertake a scientific investigation of your observations.
Best wishes,
Bill Rudman

Rudman, W.B., 2001 (May 8). Comment on Food of Jorunna funebris by Sylvain LE BRIS. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4279

Factsheet

Jorunna funebris

Related messages

  1. Jorunna funebris from Western Australia
    From: Glenn Teale, January 13, 2010
  2. Re: Jorunna funebris with egg mass
    From: Milton Rosenau, February 18, 2009
  3. Jorunna funebris on blue food sponge and eggs
    From: Marcel Tanke, February 18, 2009
  4. Jorunna funebris from Vanuatu
    From: Leanne and David Atkinson, May 6, 2008
  5. Jorunna funebris on food sponge
    From: Kenneth Yong, April 29, 2008
  6. Re: Food of Jorunna funebris
    From: Samson Tan, March 31, 2008
  7. Young specimen of Jorunna funebris
    From: Lawrence Neal, February 12, 2008
  8. Jorunna funebris from Reunion Island
    From: Hugues Flodrops, June 12, 2007
  9. Juvenile Jorunna funebris feeding
    From: Bruce Wight, June 7, 2007
  10. Jorunna funebris mating
    From: Jim Anderson, April 4, 2007
  11. Jorunna funebris hitch-hiking
    From: Jim Anderson, April 4, 2007
  12. Jorunna funebris From Gulf of Kutch, Gujarat, India
    From: Arpit Deomurari, July 28, 2006
  13. Jorunna funebris? from Indonesia
    From: Bob Widman, November 10, 2005
  14. Jorunna zania? from South Africa
    From: Valda Fraser, November 7, 2005
  15. Juvenile Jorunna funebris from Great Barrier Reef
    From: Sascha Schulz, September 15, 2005
  16. Re: Jorunna funebris in aquarium
    From: Roberto Sozzani, February 15, 2005
  17. Re: Jorunna funebris in aquarium
    From: Roberto Sozzani, February 12, 2005
  18. Jorunna funebris in aquarium
    From: Cerdo Tserda, February 9, 2005
  19. Jorunna funebris from Malaysia
    From: Asther M. Lau, October 2, 2003
  20. Jorunna funebris from Malaysia
    From: Asther M. Lau, September 10, 2003
  21. Jorunna funebris at Sipadan.
    From: Kheong Sann Chan, December 7, 2002
  22. Re: Algae as food
    From: Edy Budiman, July 26, 2002
  23. Algae as food
    From: Samuel Yap, July 3, 2002
  24. Re: Jorunna funebris in aquarium
    From: Edy Budiman, June 29, 2002
  25. Re: Jorunna funebris in aquaria
    From: Edy Budiman, June 13, 2002
  26. Jorunna funebris in aquaria
    From: Edy Budiman, June 10, 2002
  27. Food of Jorunna funebris
    From: Gustav Paulay, April 5, 2002
  28. Jorunna funebris from Bali
    From: Stuart Hutchison, February 19, 2002
  29. Jorunna funebris with egg mass
    From: Michael D. Miller, January 12, 2002
  30. Jorunna cf. funebris from Sth Africa
    From: Valda Fraser, August 7, 2001
  31. Jorunna funebris? from the Seychelles
    From: Erwin Koehler, June 14, 2001
  32. Food of Jorunna funebris
    From: Sylvain LE BRIS, May 9, 2001
  33. Jorunna funebris on a blue sponge
    From: Mary Jane Adams, March 24, 2001
  34. Jorunna funebris from Papua New Guinea
    From: Stuart Hutchison, September 18, 2000
  35. Jorunna funebris on sponge
    From: Erwin Koehler, August 28, 2000
  36. Confirmation of Jorunna funebris
    From: David Freemantle, January 29, 2000
  37. Jorunna zania or J. funebris?
    From: Ernest C.J. Seamark, July 31, 1999
  38. Re: Jorunna zania from South Africa
    From: Terry Gosliner, July 31, 1999
  39. Jorunna funebris - feeding observations
    From: Monica Sullivan, June 19, 1999
  40. Food of Jorunna funebris
    From: Lindsay Warren, February 22, 1999
  41. nudibranch/anemone association
    From: Keven Reed, February 4, 1999
  42. Food of Jorunna funebris
    From: Michael Miller, January 24, 1999
  43. Jorunna funebris with food sponge
    From: Erwin Koehler, December 31, 1998

Show factsheet and all related messages