Modulation and variability of prey capture kinematics in clariid catfishes

Journal of Experimental Zoology. Part A, Comparative Experimental Biology
Sam Van WassenberghPeter Aerts

Abstract

Species with narrow or limited diets (trophic specialists) are expected to be less flexible in their feeding repertoire compared to species feeding on a wide range of different prey (trophic generalists). The ability to modulate prey capture kinematics in response to different prey types and prey position, as well as the overall variability in prey capture kinematics, is evaluated in four clariid species ranging from trophic generalist (Clarias gariepinus) to species with morphological specializations and a narrow diet (Channallabes apus and Gymnallabes typus). High-speed video recordings were made of prey captures on two prey that differ in shape, attachment strength and hardness. While the observed amount of strike-to-strike variability in prey capture kinematics is similar for all species and not influenced by prey type, only the two less specialized species showed the ability to modulate their prey capture kinematics in function of the presented prey types. All species did, however, show positional modulation during the strike by adjusting the magnitude of neurocranial elevation. These results indicate that the narrow dietary breadth of trophic specialists is indeed indicative of functional stereotypy in this group of fishe...Continue Reading

References

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Citations

Aug 7, 2009·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Jenna A Monroy, Kiisa C Nishikawa
Nov 19, 2008·Physiological and Biochemical Zoology : PBZ·Gert RoosDominique Adriaens
Jan 25, 2014·Physiological and Biochemical Zoology : PBZ·Matthew W O'Neill, Alice C Gibb
Sep 29, 2011·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Eric Patten LambertDayv Lowry
Mar 24, 2010·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Jenna A Monroy, Kiisa Nishikawa
Oct 2, 2014·PloS One·Sam Van WassenberghAnthony Herrel
Sep 13, 2016·Zoology : Analysis of Complex Systems, ZACS·Jayne M GardinerPhilip J Motta
Mar 9, 2019·Integrative and Comparative Biology·Ariel L Camp
Sep 20, 2020·The Journal of Experimental Biology·Ariel L CampElizabeth L Brainerd
Aug 3, 2012·The Journal of Experimental Biology·Christopher E OufieroPeter C Wainwright
Nov 4, 2008·The Journal of Experimental Biology·Peter C WainwrightTimothy E Higham
Dec 16, 2006·The Journal of Experimental Biology·Sam Van WassenberghPeter Aerts
Mar 4, 2008·The Journal of Experimental Biology·Nicolai Konow, Christopher P J Sanford

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