Meeting Abstract 80.1  Sunday, Jan. 6  Indefatigable: Erect Coralline Alga Is Immune To Fatigue DENNY, MW*; MARTONE, PT; Stanford University; University of British Columbia mwdenny@stanford.edu Intertidal organisms are subjected to intense hydrodynamic forces as waves break on shore. These repeated insults can cause an organism’s structural materials to fatigue and fail even though no single force would […]

Meeting Abstract 80.3  Sunday, Jan. 6  Hydrodynamic forces and moments on microscopic aquatic animals DOLINAJEC, T.H.*; KOEHL, M.A.R.; Univ. of California, Berkeley; Univ. of California, Berkeley dolinajec@berkeley.edu Many aquatic animals are microscopic and interact with the water around them at a range of velocities in which both viscous and inertial forces are important. In spite of their […]

Meeting Abstract 80.2  Sunday, Jan. 6  Do Wave Impact Forces Limit the Size of Intertidal Organisms? JENSEN, M.M.*; DENNY, M.W.; Hopkins Marine Station, Stanford University; Hopkins Marine Station, Stanford University mmjensen@stanford.edu Although intertidal organisms are generally much smaller than their terrestrial and subtidal counterparts, the biological and physical mechanisms that limit size have not been determined. While […]

Meeting Abstract 80.5  Sunday, Jan. 6  Analysis of the fluid flow through the complex internal respiratory structures of an extinct Paleozoic echinoderm HUYNH, TL*; EVANGELISTA, D; MARSHALL, CR; Univ. of California, Berkeley; Univ. of California, Berkeley; Univ. of California, Berkeley huynhtony@berkeley.edu Blastoids were a group of stalked, sessile echinoderm preserved in rocks that span the middle Ordovician […]

Meeting Abstract 79.1  Sunday, Jan. 6  Widespread distribution of the palatal organ across Cypriniformes suggests multiple roles in feeding HERNANDEZ, LP; George Washington Univ, Washington DC phernand@gwu.edu The cypriniform palatal organ has long been thought to play a role in selectively feeding on the benthos. Composed of a dorsal mass of muscle fibers that spans the entire […]

Meeting Abstract 79.2  Sunday, Jan. 6  Using sonomicrometry to compare pharyngeal jaw kinematics in cypriniform fishes RADE, CM*; SANFORD, CP; HERNANDEZ, LP; George Washington Univ; Hofstra Univ; George Washington Univ cristinarade@gmail.com While much of the documented functional diversity in fish feeding systems involves the mechanics of suction feeding and prey capture, the pharyngeal jaw apparatus (PJA) is […]

Meeting Abstract 79.6  Sunday, Jan. 6  The role of muscle force versus work in trophic specialization of cyprinid fishes GIDMARK, N*; TARRANT, J; KONOW, N; BRAINERD, E; Brown University njg@brown.edu Vertebrates feed on a wide variety of foods that vary in material properties, so biomechanical traits of their feeding systems should vary with diet. Cyprinidae is a […]

Meeting Abstract 79.4  Sunday, Jan. 6  Strain in the Hyomandibular Cartilage of Elasmobranchs WILGA, C*; SAKAI, S; Univ Rhode Island cwilga@uri.edu The main jaw suspensory element, the hyomandibula, determines jaw mobility in elasmobranchs and ranges from slender and posteriorly directed in wide gaped bite feeders, to block-like and laterally directed in smaller mouthed suction feeders, to slender […]

Meeting Abstract 79.5  Sunday, Jan. 6  Preorbitalis and quadratomandibularis function during feeding in little skates, Leucoraja erinacea RAMSAY, J.B.*; WILGA, C.D.; University of Rhode Island jasonramsay@my.uri.edu The horizontal preorbitalis (PO) muscle of little skates originates from the cranium and inserts onto the lateral surface of the quadratomandibularis (QM) and the lower jaw. The PO is considered to […]

Meeting Abstract 79.3  Sunday, Jan. 6  A filtration mechanism for large vertebrate suspension feeders: fluid flow and filter anatomy in the devil rays (Mantas and Mobulas) PAIG-TRAN, EWM*; SUMMERS, AP; U Washington; U Washington mpaig@uw.edu The gross anatomy and microstructure of the filter pad in the 11 species of devil rays are unusual with respect to other […]