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Predator-induced morphology enhances escape locomotion in crucian carp

Author:
  • Paolo Domenici
  • Håkan Turesson
  • Jakob Brodersen
  • Christer Brönmark
Publishing year: 2008
Language: English
Pages: 195-201
Publication/Series: Royal Society of London. Proceedings B. Biological Sciences
Volume: 275
Issue: 1631
Document type: Journal article
Publisher: Royal Society

Abstract english

Fishes show a remarkable diversity of shapes which have been associated with their swimming abilities and anti-predator adaptations. The crucian carp (Carassius carassius) provides an extreme example of phenotypic plasticity in body shape which makes it a unique model organism for evaluating the relationship between body form and function in fishes. In crucian carp, a deep body is induced by the presence of pike (Esox lucius), and this results in lower vulnerability to gape-limited predators, such as pike itself. Here, we demonstrate that deep-bodied crucian carp attain higher speed, acceleration and turning rate during anti-predator responses than shallow-bodied crucian carp. Therefore, a predator-induced morphology in crucian carp enhances their escape locomotor performance. The deep-bodied carp also show higher percentage of muscle mass. Therefore, their superior performance in escape swimming may be due to a combination of higher muscle power and higher thrust.

Keywords

  • Ecology
  • swimming performance
  • fish shape
  • induced morphology
  • predator–prey interactions
  • crucian carp
  • escape response

Other

Published
  • Centre for Animal Movement Research
  • ISSN: 1471-2954
Christer Brönmark
E-mail: christer [dot] bronmark [at] biol [dot] lu [dot] se

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Division aquatic ecology

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+46 73 081 55 48

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Professor

Aquatic Ecology

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Professor

Division aquatic ecology

+46 46 222 37 02

+46 73 081 55 48

E-C125

Sölvegatan 37, Lund

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Research group

Aquatic Ecology

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Jerker Vinterstare

PhD students, assistant supervisor

  • Nan Hu
  • Varpu Pärssinen
  • Yongcui Sha
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