QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Webb, P. W. Search for Related Content PubMed PubMed Citation Articles by Webb, P. W.

Journal of Experimental Biology, Vol 201, Issue 16 2403-2412, Copyright © 1998 by Company of Biologists

JOURNAL ARTICLES

Entrainment by river chub nocomis micropogon and smallmouth bass micropterus dolomieu on cylinders

PW Webb
School of Natural Resources and Environment, University of Michigan, Ann Arbor, MI 48109-1115, USA. pwebb@umich.edu.

Sympatric stream-dwelling river chub (Nocomis micropogon) and smallmouth bass (Micropterus dolomieu) were video-taped swimming in the presence of single cylinders spanning a flume. Fish were acclimated and tested at 13, 18 and 23 degreesC swimming in an increasing-velocity test with single vertically or horizontally oriented cylinders 6.4, 13, 19 or 25 mm in diameter. Cylinder orientation had little effect on entrainment. Both species avoided cylinders at low speeds. At intermediate speeds, some fish entrained on the cylinders, but they were displaced at higher speeds. Entrained fish made no regular swimming motions, but the median and paired fins and the body moved continuously and irregularly. The periodicity of body perturbations decreased and the amplitude increased with current speed. These also increased with cylinder diameter, but the variability was high and differences were not significant. Chub entrained in larger numbers and for longer over a wider range of current speeds and temperatures than bass. Entrainment by chub increased with cylinder diameter up to 13-19 mm, but declined for 25 mm cylinders. Bass did not entrain on 6.4 mm and 25 mm cylinders and showed very little entrainment at 13 and 18 degreesC, but entrainment was similar to that of chub at 23 degreesC.

This article has been cited by other articles:

				J. C. Liao The role of the lateral line and vision on body kinematics and hydrodynamic preference of rainbow trout in turbulent flow J. Exp. Biol., October 15, 2006; 209(20): 4077 - 4090. [Abstract] [Full Text] [PDF]

				I. K. Bartol, M. Gharib, P. W. Webb, D. Weihs, and M. S. Gordon Body-induced vortical flows: a common mechanism for self-corrective trimming control in boxfishes J. Exp. Biol., January 15, 2005; 208(2): 327 - 344. [Abstract] [Full Text] [PDF]

				J. C. Liao Neuromuscular control of trout swimming in a vortex street: implications for energy economy during the Karman gait J. Exp. Biol., September 15, 2004; 207(20): 3495 - 3506. [Abstract] [Full Text] [PDF]

				J. C. Liao, D. N. Beal, G. V. Lauder, and M. S. Triantafyllou Fish Exploiting Vortices Decrease Muscle Activity Science, November 28, 2003; 302(5650): 1566 - 1569. [Abstract] [Full Text] [PDF]

				J. C. Liao, D. N. Beal, G. V. Lauder, and M. S. Triantafyllou The Karman gait: novel body kinematics of rainbow trout swimming in a vortex street J. Exp. Biol., March 15, 2003; 206(6): 1059 - 1073. [Abstract] [Full Text] [PDF]

				I. K. Bartol, M. Gharib, D. Weihs, P. W. Webb, J. R. Hove, and M. S. Gordon Hydrodynamic stability of swimming in ostraciid fishes: role of the carapace in the smooth trunkfish Lactophrys triqueter (Teleostei: Ostraciidae) J. Exp. Biol., February 15, 2003; 206(4): 725 - 744. [Abstract] [Full Text] [PDF]

				P. W. Webb Control of Posture, Depth, and Swimming Trajectories of Fishes Integr. Comp. Biol., February 1, 2002; 42(1): 94 - 101. [Abstract] [Full Text] [PDF]