TITLE

Propulsion in Cubomedusae: Mechanisms and Utility

AUTHOR(S)
Colin, Sean P.; Costello, John H.; Katija, Kakani; Seymour, Jamie; Kiefer, Kristen
PUB. DATE
February 2013
SOURCE
PLoS ONE;Feb2013, Vol. 8 Issue 2, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Evolutionary constraints which limit the forces produced during bell contractions of medusae affect the overall medusan morphospace such that jet propulsion is limited to only small medusae. Cubomedusae, which often possess large prolate bells and are thought to swim via jet propulsion, appear to violate the theoretical constraints which determine the medusan morphospace. To examine propulsion by cubomedusae, we quantified size related changes in wake dynamics, bell shape, swimming and turning kinematics of two species of cubomedusae, Chironex fleckeri and Chiropsella bronzie. During growth, these cubomedusae transitioned from using jet propulsion at smaller sizes to a rowing-jetting hybrid mode of propulsion at larger sizes. Simple modifications in the flexibility and kinematics of their velarium appeared to be sufficient to alter their propulsive mode. Turning occurs during both bell contraction and expansion and is achieved by generating asymmetric vortex structures during both stages of the swimming cycle. Swimming characteristics were considered in conjunction with the unique foraging strategy used by cubomedusae.
ACCESSION #
87624564

 

Related Articles

  • Preservation methods alter stable isotope values in gelatinous zooplankton: implications for interpreting trophic ecology. Fleming, Nicholas E. C.; Houghton, Jonathan D. R.; Magill, Caroline L.; Harrod, Chris // Marine Biology;Sep2011, Vol. 158 Issue 9, p2141 

    Jellyfish are increasingly topical within studies of marine food webs. Stable isotope analysis represents a valuable technique to unravel the complex trophic role of these long-overlooked species. In other taxa, sample preservation has been shown to alter the isotopic values of species under...

  • Jellyfish Alert. WHITE, MARGO // North & South;Jan2013, Issue 322, p90 

    The author offers her insight on jellyfish. She was shocked to discover that there was no jellyfish expert in New Zealand despite its abundance in the region's shores. Given that jellyfish are such a common feature of the country, and one of the most ancient species in the planet, she says they...

  • SIGNS.  // National Geographic;May2003, Vol. 203 Issue 5, p5 

    Presents an image of a sign found at a beach at Port Douglas, in northeastern Australia which warns of box jellyfish (Chironex fleckeri), arguably the world's most venomous animal, common October through May.

  • Box jellyfish find lunch by knowing which way is up.  // New Scientist;5/7/2011, Vol. 210 Issue 2811, p20 

    The article gives brief information about research which found gypsum crystal in the surrounding structures of box jellyfish's eyes keep some of them pointing up which might increase the animal's ability to navigate by using trees as landmarks even though box jellyfish do not have a brain.

  • Stingers. Eliot, John L. // National Geographic;Jul2005, Vol. 208 Issue 1, p54 

    Reports on the work Jamie Seymour, an ecologist at James Cook University in Cairns, Australia, does involving box jellyfish. The toxicity of the box jellyfish's tentacles; Tagging and tracking Seymour does of box jellyfish; Encounter Seymour had with a box jellyfish; Importance of understanding...

  • Snoozing Jellies Caught in the Act. Hickey, Georgina; Fullagar, Richard; Holden, Karina; Lee, Michael; McGhee, Karen; Sullivan, Rachel; Thopmas, Abbie; Torr, Geordie // Nature Australia;Spring2005, Vol. 28 Issue 6, p17 

    The article reports that researchers have discovered that the Box Jellyfish (Chironex fleckeri)--a deadly marine creature found in northern Australia--appears to "sleep" during the night. The researchers used superglue to attach a tracking device to the bell of several individuals, and then...

  • Irukandji Jellyfish Go Fishing.  // Australasian Science;Sep2015, Vol. 36 Issue 7, p10 

    The article reports on a feeding study of the Irukandji box jellyfish (Carukia barnesi) led by Robert Courtney of James Cook University which found that the jellyfish actively fish by twitching their tentacles to attract larval fish.

  • Abundance patterns of cubozoans on and near the Great Barrier Reef. Kingsford, M.; Seymour, J.; O'Callaghan, M. // Hydrobiologia;Jun2012, Vol. 690 Issue 1, p257 

    The ecology of cubozoans is poorly understood and there are few quantitative studies on their distribution patterns. Sampling was designed to test first for variation in abundance with distance across the continental shelf in waters of the Great Barrier Reef, Australia. Second, we tested for the...

  • Proximate composition and energy content of forage species from the Bay of Biscay: high- or low-quality food? Spitz, Jérôme; Mourocq, Emeline; Schoen, Valérie; Ridoux, Vincent // ICES Journal of Marine Science / Journal du Conseil;Jul2010, Vol. 67 Issue 5, p909 

    Spitz, J., Mourocq, E., Schoen, V., and Ridoux, V. 2010. Proximate composition and energy content of forage species from the Bay of Biscay: high- or low-quality food? – ICES Journal of Marine Science, 67: 909–915.Collapses of high-energy dense concentrations of prey species induce...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics