... on the regeneration process of tube foot morphology (length, disc area) and functionality (maximum disc tenacity, stem breaking force). Disc area showed significant plasticity in response to the treatments; when exposed to emersion and turbulent water movement, disc area was larger than that of tube feet regenerated...

... hydrodynamic forces; this adhesion is plastic and varies as a function of rock type and native population. Echinoid Hydrodynamic forces Surface roughness Tenacity Tube feet In the wave-dominated nearshore open coast, hydrodynamic forces dictate key ecological parameters such as species...

... to predation for an ectothermic intertidal mollusc (the owl limpet, Lottia gigantea ) and its predator (the black oystercatcher, Haematopus bachmani ). The ability of L. gigantea to resist bird predation during low tide is determined by the tenacity of attachment to the rock. We developed a transducer...

...Gretchen M. Moeser; Emily Carrington SUMMARY The blue mussel , Mytilus edulis , attaches itself to the substrate by producing a radially arranged complex of collagenous byssal threads. The strength of byssal attachment, or tenacity, has been shown to vary seasonally on Rhode Island shores...

... area of contact between the disc and the surface. Tenacity (force per unit area) increases with roughness [e.g. 0.18 and 0.34 MPa on smooth polymethyl-methacrylate (PMMA), 0.21 and 0.47 MPa on rough PMMA for sea stars and sea urchins, respectively] if only the projected surface area of the adhesive...

... differing greatly in tenacity values (range, 1.39-28.24 kPa). The surface is readily wettable with water (contact angle, 31.9-36.0°C)and has a high surface free energy (56.84-61.93 mN m -1 ) with a relatively high polar component (33.09-52.70 mN m -1 ). To examine the effect of the glandular secretion...

.... mussel shells, barnacle basal plates or eelgrass blades) depends upon the surface texture of the host. Thus, the overall tenacity of a colony is affected by the types of substrata that it overgrows. * Present address: Department of Biology, University of Virginia, Charlottesville, VA 22903-2477...