ONTOGENETIC CHANGES IN RESPONSE TO HETEROSPECIFIC ALARM CUES BY JUVENILE LARGEMOUTH BASS ARE PHENOTYPICALLY PLASTIC

ONTOGENETIC CHANGES IN RESPONSE TO HETEROSPECIFIC ALARM CUES BY JUVENILE LARGEMOUTH BASS ARE... ONTOGENETIC CHANGES IN RESPONSE TO HETEROSPECIFIC ALARM CUES BY JUVENILE LARGEMOUTH BASS ARE PHENOTYPICALLY PLASTIC by GRANT E. BROWN 1,2) , DEVON L. GERSHANECK 3) , DESIREE L. PLATA 3) and JUSTIN L. GOLUB 3,4) ( 1 Department of Biology, Concordia University, 1455 Boul. de Maisonneuve O., Montréal, Québec, H3G 1M8, Canada; 3 Department of Biological Sciences, Union College, Schenectady, NY, 12308, USA) (Acc. 19-IV-2002) Summary Juvenile largemouth bass ( Micropterus salmoides ) undergo an ontogenetic change in their response to chemical alarm cues of a heterospeciŽc prey guild member (Ž nescale dace, Phoxinus neogaeus ), shifting from an antipredator to a foraging response at a standard length of 50 to 55 mm. We conducted a laboratory study to determine if: (1) this shift is Ž xed or phenotypicallyplastic, and (2) juvenile bass respond to the alarm cues of a non-Ostariophysan prey guild member. Juvenile bass were reared on high versus low food diets for 10 weeks prior to the experiment, and then exposed to heterospeciŽc skin extracts (the source of chemical alarm cues). When exposed to the skin extracts of Ž nescale dace or green sunŽ sh ( Lepomis cyanellus ), juvenile bass exhibited a signiŽ cant http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Behaviour Brill

ONTOGENETIC CHANGES IN RESPONSE TO HETEROSPECIFIC ALARM CUES BY JUVENILE LARGEMOUTH BASS ARE PHENOTYPICALLY PLASTIC

Behaviour, Volume 139 (7): 913 – Jan 1, 2002

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Publisher
Brill
Copyright
© 2002 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0005-7959
eISSN
1568-539X
D.O.I.
10.1163/156853902320387891
Publisher site
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Abstract

ONTOGENETIC CHANGES IN RESPONSE TO HETEROSPECIFIC ALARM CUES BY JUVENILE LARGEMOUTH BASS ARE PHENOTYPICALLY PLASTIC by GRANT E. BROWN 1,2) , DEVON L. GERSHANECK 3) , DESIREE L. PLATA 3) and JUSTIN L. GOLUB 3,4) ( 1 Department of Biology, Concordia University, 1455 Boul. de Maisonneuve O., Montréal, Québec, H3G 1M8, Canada; 3 Department of Biological Sciences, Union College, Schenectady, NY, 12308, USA) (Acc. 19-IV-2002) Summary Juvenile largemouth bass ( Micropterus salmoides ) undergo an ontogenetic change in their response to chemical alarm cues of a heterospeciŽc prey guild member (Ž nescale dace, Phoxinus neogaeus ), shifting from an antipredator to a foraging response at a standard length of 50 to 55 mm. We conducted a laboratory study to determine if: (1) this shift is Ž xed or phenotypicallyplastic, and (2) juvenile bass respond to the alarm cues of a non-Ostariophysan prey guild member. Juvenile bass were reared on high versus low food diets for 10 weeks prior to the experiment, and then exposed to heterospeciŽc skin extracts (the source of chemical alarm cues). When exposed to the skin extracts of Ž nescale dace or green sunŽ sh ( Lepomis cyanellus ), juvenile bass exhibited a signiŽ cant

Journal

BehaviourBrill

Published: Jan 1, 2002

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