|
| |
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
Journal of Experimental Biology, Vol 200, Issue 15 2145-2154, Copyright © 1997 by Company of Biologists
JOURNAL ARTICLES |
D Nemeth
Changes in intraoral pressure during prey capture were recorded for a trophic generalist, Hexagrammos decagrammus, feeding on different prey species. Prey were grouped into elusive (shrimps), grasping (isopods and crabs) and non-elusive (pieces of shrimp) categories. Elusive and grasping prey elicited strikes with a larger and faster reduction in buccal pressure than did non-elusive prey. The suction force generated by the predator differed for strikes among the shrimp genera in the elusive prey category. The most sedentary shrimps (Crangon alaskensis and C. nigricauda) elicited the fastest and greatest reduction in pressure relative to the most evasive shrimps (Pandalus danae and Heptacarpus stylus). A preparatory phase, during which the buccal cavity is compressed prior to the strike, occurred significantly more frequently in strikes at grasping prey than in strikes at elusive and non-elusive prey, and more frequently for elusive than for non-elusive prey. Prey size did not influence the suction force generated by the predator. No differences in buccal pressure patterns were detected between strikes that resulted in a capture or a miss, suggesting that misses were due to the escape behavior of the prey and were not the result of an inappropriate suction force. These data support the current view that fish can modify their feeding mode in response to prey behavior, and they emphasize that the behavioral responses of the individual prey must be considered when defining the appropriate strategy for prey capture. The use of a flexible, modifiable feeding behavior is associated with a broad diet in H. decagrammus and may increase capture success on diverse prey relative to that of other species showing stereotypical feeding responses.
This article has been cited by other articles:
|
|
 |
|
  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]
|
|
|
|
|
|
C. D. Wilga and C. P. Sanford Suction generation in white-spotted bamboo sharks Chiloscyllium plagiosum J. Exp. Biol., October 1, 2008; 211(19): 3128 - 3138. [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]
|
|
|
|
|
|
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]
|
|
|
|
|
|
R. Holzman, S. W. Day, and P. C. Wainwright Timing is everything: coordination of strike kinematics affects the force exerted by suction feeding fish on attached prey J. Exp. Biol., October 1, 2007; 210(19): 3328 - 3336. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. D. Wilga, P. J. Motta, and C. P. Sanford Evolution and ecology of feeding in elasmobranchs Integr. Comp. Biol., July 1, 2007; 47(1): 55 - 69. [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, S. W. Day, and P. C. Wainwright The pressures of suction feeding: the relation between buccal pressure and induced fluid speed in centrarchid fishes J. Exp. Biol., September 1, 2006; 209(17): 3281 - 3287. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. A. Merz and S. A. Woodin Polychaete chaetae: Function, fossils, and phylogeny Integr. Comp. Biol., August 1, 2006; 46(4): 481 - 496. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. E. Higham, S. W. Day, and P. C. Wainwright Multidimensional analysis of suction feeding performance in fishes: fluid speed, acceleration, strike accuracy and the ingested volume of water J. Exp. Biol., July 15, 2006; 209(14): 2713 - 2725. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Janovetz Functional morphology of feeding in the scale-eating specialist Catoprion mento J. Exp. Biol., December 15, 2005; 208(24): 4757 - 4768. [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]
|
|
|
|
|
|
P. C. Wainwright, L. A. Ferry-Graham, T. B. Waltzek, A. M. Carroll, C. D. Hulsey, and J. R. Grubich Evaluating the use of ram and suction during prey capture by cichlid fishes J. Exp. Biol., January 9, 2001; 204(17): 3039 - 3051. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Arnott, D. Neil, and A. Ansell Escape trajectories of the brown shrimp crangon crangon, and a theoretical consideration of initial escape angles from predators J. Exp. Biol., January 1, 1999; 202(2): 193 - 209. [Abstract] [PDF]
|
|
