FERRIER, D.E.K.; Univ. of Oxford: Homeobox gene clusters in polychaete annelids. Genes of the Antp-superclass (including Hox, ParaHox and NK genes) are key regulators of development across the animal kingdom. A distinctive feature of these genes is that they tend to be arranged into clusters in the genome. This is typified by the famous Hox […]

ARENAS-MENA , Cesar *; UVEGES, Tracy ; DASARI, Srividya ; ALVARENGA-MAGANA, Jose; FISCHLER, Andrew ; CLEMENTE, Alfonso; DEAS , Joseph ; San Diego State University; San Diego State University; San Diego State University; San Diego State University; San Diego State University; San Diego State University; San Diego State University; : Gene expression studies in the […]

NORENBURG, J.L.; THOLLESSON, M.; Natl. Mus. Nat. Hist., Washington DC; Uppsala Univ., Sweden: Diversification in the phylum Nemertea in light of a molecular phylogeny. A recent molecular phylogeny of Nemertea, based on Bayesian analysis of partial sequence data from four genes for 55 species-level taxa, proposed three new higher-level clades and resolution for several contested […]

KOROBOV, N*; BRAINERD, EL; MADDEN, P; LAUDER, GV; University of Massachusetts Amherst; Brown University; Harvard University; Harvard University: Novel pectoral fin kinematics during steady swimming in a benthic fish, the Longhorn sculpin, Myoxocephalus octodecimspinosus Myoxocephalus octodecimspinosus (Cottidae: Scorpaeniformes) is a benthic fish that lacks a swim bladder and is negatively buoyant. This species uses large, […]

TYTELL, E.D.; Harvard University: Median fin function in bluegill sunfish, Lepomis macrochirus: Streamwise vortex structure during steady swimming Flow patterns in the transverse plane were examined at a range of positions around bluegill sunfish, Lepomis macrochirus, from the trailing edges of the dorsal and anal fins to the near wake. Simultaneous particle image velocimetry and […]

CHADWELL, BA**; STANDEN, EM; LAUDER, GV; Wake Forest University; Harvard University; Harvard University: Dorsal and anal fin function during the C-start escape response in bluegill sunfish. Axial kinematics during the fish C-start have been studied extensively and the pattern of body and caudal fin movement is well understood. However, there are effectively no detailed kinematic […]

FISH, F.E.*; NUSBAUM, M.K.; BENESKI, J.T.; KETTEN, D.R.; WILLIAMS, T.M.; West Chester University; West Chester University; West Chester University; Woods Hole Oceanographic Institution; Univ. of California, Santa Cruz: Dolphin flukes as passively self-adjusting flexible propulsors The flukes are the main locomotor structure in cetaceans. Effective thrust generation is a function of the fluke kinematics, angle […]

DANOS, N.*; BRAINERD, E.L.; Harvard University; Brown University: Biomechanics of the skin during swimming in the American Eel, Anguilla rostrata. We are interested in the functional morphology of the dermis because it has a highly organized arrangement of collagen fibers, an arrangement that appears in all vertebrates that locomote by axial undulations. In this study […]

SCHAEFER, Justin T*; KOOB, Thomas J; LONG, JR., John H; Univ. of California, Irvine; Shriner’s Hospital for Children, Tampa; Vassar College: Bending mechanics of elasmobranch vertebral columns The waveform of sinusoidally swimming elasmobranchs depends, in part, on the flexural stiffness of the body, which in turn is presumed to be a function of the material […]

Meeting Abstract 55.2  Jan. 6  UV-based dewlap color correlates with bite force in the Brown Anole, Norops sagrei. STEFFEN, John E*; MCBRAYER, Lance D; Auburn University; Georgia Southern University steffje@auburn.edu Weapon strength should be conveyed in correlated visual signals if they confer advantage to visual signal senders and receivers. This should especially be true in species that […]