Meeting Abstract S1-3.10  Jan. 5  Effect of Rewriting the Neural Code to Muscles in Running and Stationary Insects. SPONBERG, S.*; SPENCE, A.; MULLENS, C.; FULL, R. J.; Univ. of California, Berkeley sponberg@berkeley.edu While recent studies on isolated muscles discovered that single muscles can perform a variety of functions, we lack an understanding of how motor activation patterns […]

Meeting Abstract S1-3.14  Jan. 5  Bipedal Running: “No muscle work and all tendon play” is energetically beneficial even with an energy cost for isometric force production. SRINIVASAN, Manoj; Princeton University, Princeton msriniva@princeton.edu Muscles consume energy whether or not they perform work, as long as they exert a force while active. An energy-economizing animal will presumably minimize its […]

Meeting Abstract S1-3.1  Jan. 5  Active Tail Stabilizes Rapid Vertical Running in Geckos JUSUFI, A.**; GOLDMAN, D.I.; FULL, R.J.; Univ. of California, Berkeley ardianj@berkeley.edu Animals running vertically must respond rapidly to gaps, obstacles and slippery surfaces to negotiate complex scansorial terrains. We challenged geckos (Cosymbotus platyurus; n=7) with three vertical surfaces that produced different degrees of foot […]

Meeting Abstract S1-2.5  Jan. 4  Thrust augmentation confirmed in self-propelled, tandem flapping foil robots by foil-wake interaction ANDERSON, E.J.*; LAUDER, G.V.; Harvard University eanderson@oeb.harvard.edu The question of energy �recapture� from the wake of upstream structures or fins of swimming fish by downstream fins has been discussed from a theoretical perspective for many decades. The phenomenon is difficult […]

Meeting Abstract S1-2.7  Jan. 4  Sensing moving fluid: Hydroreception in the lateral line system of zebrafish MCHENRY, M.J.*; STROTHER, J.A.; VAN TRUMP, W.J.; NETTEN, VAN, S.M.; U.C. Irvine; U.C. Irvine; U.C. Irvine; Univ. of Groningen, NL mmchenry@uci.edu Fish sense water flow with numerous microscopic structures on the surface of their skin. These structures, known as superficial neuromasts […]

Meeting Abstract S1-2.4  Jan. 4  Reactive Forces in Undulatory Swimming, with Reference to the Common Garter Snake (Thamnophis sirtalis) MUNK, Y.; Univ. of California, Berkeley yonatanmunk@berkeley.edu Classical studies of the swimming of long and narrow animals have treated anguilliform propulsion as driven largely by resistive (drag-based) forces acting on the body, with �reactive� forces (resulting from the […]

Meeting Abstract S1-2.10  Jan. 4  Position Around a Tree: Consequences for Pheromone Detection LOUDON, C.*; MILLER, G. L.; FREED, S.; University of California, Irvine cloudon@uci.edu The usual flow pattern expected around a cylindrical object such as a tree in slow wind is predicted from fluid mechanics to have areas of faster flow (upwind) and slower recirculating flow […]

Meeting Abstract S1-2.2  Jan. 4  Morphology to Performance to Fitness: Biomechanics and Ecology Predict Evolutionary Divergence in a Livebearing Fish LANGERHANS, R.B.; Harvard University langerhans@oeb.harvard.edu To examine whether evolutionary outcomes can be predicted from first principles, I test predictions of phenotypic evolution based on biomechanical and ecological knowledge regarding the relationships between body morphology, swimming performance, and […]

Meeting Abstract S1-2.8  Jan. 4  Hydrodynamic imaging by blind cave fish WINDSOR, S.P.**; MALLINSON, G.D.; MONTGOMERY, J.C.; Univ. of Auckland; Univ. of Auckland; Univ. of Auckland s.windsor@auckland.ac.nz The hypogean (cave-dwelling) form of the fresh water teleost Astyanax fasciatus, commonly known as the blind Mexican cave fish, occurs in deep subterranean caves where there is no light. In […]

Meeting Abstract S1-2.9  Jan. 4  Going with the flow: rheotaxis and station holding in the shiner surfperch (Cymatogaster aggregata). VAN TRUMP, W.J.; Univ. of California, Irvine wvantrum@uci.edu Shiner surfperch (Cymatogaster aggregata) contend with the fast and rapidly changing currents of an intertidal environment. The aim of the present study was to determine the functional role of the […]