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Keywords: echinoid
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Journal Articles
J Exp Biol (2020) 223 (15): jeb228544.
Published: 13 August 2020
... 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...
Includes: Supplementary data
Journal Articles
J Exp Biol (2010) 213 (2): 249–255.
Published: 15 January 2010
...D. Yerramilli; S. Johnsen SUMMARY Recent evidence that echinoids of the genus Echinometra have moderate visual acuity that appears to be mediated by their spines screening off-axis light suggests that the urchin Strongylocentrotus purpuratus , with its higher spine density, may have even more acute...
Journal Articles
Journal Articles
J Exp Biol (2004) 207 (24): 4249–4253.
Published: 15 November 2004
...Erin Blevins; Sönke Johnsen SUMMARY Although eyes are generally considered necessary for image resolution, a diffuse photoreceptive system with directional sensitivity may also have this ability. Two species of the echinoid genus Echinometra were tested for spatial vision by examining...
Journal Articles
Journal Articles
J Exp Biol (1999) 202 (22): 3111–3119.
Published: 15 November 1999
...Florence I. M. Thomas; Toby F. Bolton ABSTRACT Shear stresses experienced by eggs in the oviduct of the echinoid Arbacia punctulata during spawning were calculated using engineering equations that describe laminar flow through pipes. Shear stresses in the oviduct ranged from 0 to 58.7 Pa. Two...
Journal Articles