HR: 17:15h
AN: OS54A-06    [Abstracts]
TI: Functional morphology and fluid interactions during early development of scyphomedusae.
AU: Feitl, K E
EM: kfeitl08@providence.edu
AF: University of California, 321 Steinhaus Hall Department of Ecology & Evolution, Irvine, CA 92697, United States
AU: Millett, A H
EM: amillett@disl.edu
AF: Dauphin Island Sea Laboratory, Department of Marine Sciences 101 Bienville Blvd, Dauphin Island, AL 36528, United States
AU: * Costello, J H
EM: costello@providence.edu
AF: Providence College, Biology Department 549 River Ave, Providence, RI 02918, United States
AU: Colin, S P
EM: scolin@rwu.edu
AF: Roger Williams University, Dept. Environmental Sciences, Bristol, RI 02809, United States
AU: Dabiri, J O
EM: jodabiri@its.caltech.edu
AF: California Institute of Technology, Division of Engineering and Applied Science Mail Code 138-78, Pasadena, CA 91125, United States
AB: The physical dimensions of larval scyphomedusae, termed ephyrae, are typically small, often 2-3 mm in diameter, whereas adults of this group may be as large as 2 meters in diameter. Although ephyral morphologies are similar among scyphomedusae, adult morphologies vary widely. Kinematic studies of the species Aurelia aurita and Cyanea capillata demonstrate that viscous forces were important in flows around small ephyrae (maximum Re <10), whereas viscosity was less influential in the inertially dominated flows surround adult medusae (Re > 100). The timing of morphological alterations during development indicates that ontogenetic processes are closely synchronized with alterations in the hydrodynamic environment within which these medusae develop and that the interactions of morphology and fluid flows alter the feeding process during scyphozoan development.
DE: 0439 Ecosystems, structure and dynamics (4815)
DE: 0495 Water/energy interactions (1878)
DE: 4815 Ecosystems, structure, dynamics, and modeling (0439)
DE: 4890 Zooplankton
SC: Ocean Sciences [OS]
MN: 2007 Fall Meeting