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- By Basem Abdelmalak, Joseph Abdelmalak, Alaa A. Abd-Elsayed, David L. Adams, Eric E. Adelman, Maged Argalious, Endrit Bala, Gene H. Barnett, Sheron Beltran, Andrew Bielaczyc, William Bingaman, James M. Blum, Alina Bodas, Vera Borzova, Richard Bowers, Adam Brown, Chad M. Brummett, Alexandra S. Bullough, James F. Burke, Juan P. Cata, Neeraj Chaudhary, Michael J. Claybon, Miguel Cruz, Milind Deogaonkar, Vikram Dhawan, Thomas Didier, D. John Doyle, Zeyd Ebrahim, Hesham Elsharkawy, Wael Ali Sakr Esa, Ehab Farag, Ryen D. Fons, Joseph J. Gemmete, Matt Giles, Phil Gillen, Goodarz Golmirzaie, Marcos Gomes, Lisa Grilly, Maged Guirguis, David W. Healy, Heather Hervey-Jumper, Shawn L. Hervey-Jumper, Paul E. Hilliard, Samuel A. Irefin, George K. Istaphanous, Teresa L. Jacobs, Ellen Janke, Greta Jo, James W. Jones, Rami Karroum, Allen Keebler, Stephen J. Kimatian, Colleen G. Koch, Robert Scott Kriss, Andrea Kurz, Jia Lin, Michael D. Maile, Negmeldeen F. Mamoun, Mariel Manlapaz, Edward Manno, Donn Marciniak, Piyush Mathur, Nicholas F. Marko, Matthew Martin, George A. Mashour, Marco Maurtua, Scott T. McCardle, Julie McClelland, Uma Menon, Paul S. Moor, Laurel E. Moore, Ruairi Moulding, Dileep R. Nair, Todd Nelson, Julie Niezgoda, Edward Noguera, Jerome O’Hara, Aditya S. Pandey, Mauricio Perilla, Paul Picton, Marc J. Popovich, J. Javier Provencio, Venkatakrishna Rajajee, Mohit Rastogi, Stacy Ritzman, Lauryn R. Rochlen, Leif Saager, Vivek Sabharwal, Oren Sagher, Kenneth Saliba, Milad Sharifpour, Lesli E. Skolarus, Paul Smythe, Wolf H. Stapelfeldt, William R. Stetler, Peter Stiles, Vijay Tarnal, Khoi D. Than, B. Gregory Thompson, Alparslan Turan, Christopher R. Turner, Justin Upp, Sumeet Vadera, Jennifer Vance, Anthony C. Wang, Robert J. Weil, Marnie B. Welch, Karen K. Wilkins, Erin S. Williams, George N. Youssef, Asma Zakaria, Sherif S. Zaky, Andrew Zura
- Edited by George A. Mashour, Ehab Farag
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- Book:
- Case Studies in Neuroanesthesia and Neurocritical Care
- Published online:
- 03 May 2011
- Print publication:
- 03 February 2011, pp x-xvi
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A Note on Feeding in Leptopentacta (=Cucumaria) Elongata
- J. Douglas McKenzie, B. E. Picton
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- Journal:
- Journal of the Marine Biological Association of the United Kingdom / Volume 64 / Issue 3 / August 1984
- Published online by Cambridge University Press:
- 11 May 2009, p. 727
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Conflicting opinions exist as to the method of feeding employed by Leptopentacta elongata (Dub. and Kor). Orton (1914) and Mortensen (1927) suggested that it may be a deposit feeder. Chia & Buchanan (1969) noted that post larval specimens up to 1 year old deposit fed. Fankboner (1981), in a short study, concluded that the adults were cryptic deposit feeders. Hunt (1925) and Fish (1967), however, observed what they concluded was suspension feeding. All the above observations were the result of aquarium studies. Fish (1967) also demonstrated that Leptopentacta hibernated between October and April or May both in the field and in aquarium. He also observed that hibernation could be induced in the summer months by reducing water temperature to 8°C but that winter hibernation could not be curtailed by raising the water temperature.
Obsevations made by one of us (B.P.) while diving indicate that Leptopentacta suspension feeds. This behaviour has been observed on several occasions from several sites around the Irish coastline with specimens then being caught and their identity confirmed. While feeding the tentacles are held clear of the substrate to intercept suspended material.
These observations clearly do not support the description of Leptopentacta solely as a cryptic deposit feeder, indeed the evidence for the adults deposit feeding at all is weak. Orton (1914) and Mortensen were only speculating on Leptopentacta being a deposit feeder based on the observation that specimens in aquaria spent much of their time completely buried. Hibernation, as shown by Fish (1967), is a possible explanation for this.