|
| |
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
First published online February 6, 2004
Journal of Experimental Biology 207, 983-991 (2004)
Published by The Company of Biologists 2004
doi: 10.1242/jeb.00862
Muscle activation and strain during suction feeding in the largemouth bass Micropterus salmoides
Section of Evolution and Ecology, University of California, One Shields Avenue, Davis, CA 95616, USA
(e-mail: mcqcarroll{at}ucdavis.edu)
Accepted 31 December 2004
Activation and strain in the sternohyoideus (SH) were measured in vivo in five largemouth bass Micropterus salmoides. The SH is thought to actuate lower jaw depression, hyoid depression and suspensorial abduction during suction feeding in teleost fish. Sonomicrometry was used to measure fascicle shortening and lower jaw kinematics, while activity was measured by electromyography (EMG). SH fascicles shortened by an average of 11% during suction feeding. In three fish SH fascicles consistently shortened during fast lower jaw depression, but in two individuals they contracted isometrically or lengthened slightly during fast lower jaw depression. The SH continued shortening after peak gape, presumably actuating hyoid depression and lateral expansion of the buccal cavity. Onset of SH relengthening and onset of lower jaw elevation were simultaneous, as were the return of the SH to resting length and gape closure. Activation followed the onset of shortening by an average of 23 ms, although the muscle was active an average of 15 ms before the onset of rapid shortening. SH fascicles reached sustained shortening velocities averaging –2.5 fascicle lengths per second, and generally increased shortening velocity after peak gape. The shortening velocities measured in this study suggest that the SH actively shortens to generate power during suction feeding. This study is the first direct measurement of in vivo muscle function during suction feeding, the most common mechanism of prey capture among aquatic vertebrates.
Key words: suction feeding, largemouth bass, Micropterus salmoides, muscle function, sonomicrometry, electromyography, muscle strain
CiteULike 
Complore 
Connotea 
Del.icio.us 
Digg 
Reddit 
Technorati 
Twitter What's this?
This article has been cited by other articles:
|
|
 |
|
  A. M. Carroll and P. C. Wainwright Energetic limitations on suction feeding performance in centrarchid fishes J. Exp. Biol., October 15, 2009; 212(20): 3241 - 3251. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. M Carroll, A. M Ambrose, T. A Anderson, and D. J Coughlin Feeding muscles scale differently from swimming muscles in sunfish (Centrarchidae) Biol Lett, April 23, 2009; 5(2): 274 - 277. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
N. Konow and C. P. J. Sanford Biomechanics of a convergently derived prey-processing mechanism in fishes: evidence from comparative tongue bite apparatus morphology and raking kinematics J. Exp. Biol., November 1, 2008; 211(21): 3378 - 3391. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Nauwelaerts, C. D. Wilga, G. V. Lauder, and C. P. Sanford Fluid dynamics of feeding behaviour in white-spotted bamboo sharks J. Exp. Biol., October 1, 2008; 211(19): 3095 - 3102. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 N. Konow, A. L. Camp, and C. P. J. Sanford Congruence between muscle activity and kinematics in a convergently derived prey-processing behavior Integr. Comp. Biol., August 1, 2008; 48(2): 246 - 260. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
N. Konow and C. P. J. Sanford Is a convergently derived muscle-activity pattern driving novel raking behaviours in teleost fishes? J. Exp. Biol., March 15, 2008; 211(6): 989 - 999. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. D. Marshall, K. M. Kovacs, and C. Lydersen Feeding kinematics, suction and hydraulic jetting capabilities in bearded seals (Erignathus barbatus) J. Exp. Biol., March 1, 2008; 211(5): 699 - 708. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. Wainwright, A. M. Carroll, D. C. Collar, S. W. Day, T. E. Higham, and R. A. Holzman Suction feeding mechanics, performance, and diversity in fishes Integr. Comp. Biol., July 1, 2007; 47(1): 96 - 106. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. E. Higham Feeding, fins and braking maneuvers: locomotion during prey capture in centrarchid fishes J. Exp. Biol., January 1, 2007; 210(1): 107 - 117. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Van Wassenbergh, A. Herrel, D. Adriaens, and P. Aerts A test of mouth-opening and hyoid-depression mechanisms during prey capture in a catfish using high-speed cineradiography J. Exp. Biol., December 15, 2005; 208(24): 4627 - 4639. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. N. Rice and M. W. Westneat Coordination of feeding, locomotor and visual systems in parrotfishes (Teleostei: Labridae) J. Exp. Biol., September 15, 2005; 208(18): 3503 - 3518. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Van Wassenbergh, P. Aerts, and A. Herrel Scaling of suction-feeding kinematics and dynamics in the African catfish, Clarias gariepinus J. Exp. Biol., June 1, 2005; 208(11): 2103 - 2114. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. M. Carroll, P. C. Wainwright, S. H. Huskey, D. C. Collar, and R. G. Turingan Morphology predicts suction feeding performance in centrarchid fishes J. Exp. Biol., October 15, 2004; 207(22): 3873 - 3881. [Abstract] [Full Text] [PDF]
|
|
