Broader head, stronger bite: In vivo bite forces in European eel Anguilla anguilla

This work examined three different phenotypes of the yellow‐eel stage of the European eel Anguilla anguilla, broad‐heads, narrow‐heads and eels with an intermediate head shape. The aim was to see whether broad‐headed A. anguilla, which generally consume harder, larger prey, such as crustaceans and f...

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Bibliographic Details
Published in:Journal of fish biology 2018-01, Vol.92 (1), p.268-273
Main Authors: De Meyer, J., Herrel, A., Belpaire, C., Goemans, G., Ide, C., De Kegel, B., Christiaens, J., Adriaens, D.
Format: Article
Language:English
Subjects:
Anguilla
Anguilla anguilla
Animal bites
Aquatic crustaceans
Biodiversity and Ecology
bite force
Biting
Catadromous fishes
Crustaceans
dimorphism
Eels
Environmental Sciences
feeding performance
Fish
Force measurement
Forces (mechanics)
Head
Intermediates
Larvae
Marine fishes
Phenotypes
Prey
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Summary:This work examined three different phenotypes of the yellow‐eel stage of the European eel Anguilla anguilla, broad‐heads, narrow‐heads and eels with an intermediate head shape. The aim was to see whether broad‐headed A. anguilla, which generally consume harder, larger prey, such as crustaceans and fish, exerted greater bite force than the narrow‐headed variant, which mainly consume soft, small prey such as chironomid larvae. It was found that in 99 yellow A. anguilla, in vivo bite force of broad‐heads are higher compared with narrow‐heads and intermediates.
ISSN:0022-1112
1095-8649
DOI:10.1111/jfb.13511