Back to overview

Bimodality in head shape in European eel

The existence of two morphotypes, broadheaded and narrowheaded, in European eels Anguilla anguilla is common knowledge among fishermen and eel biologists in Europe. To test whether European eels really are dimorphic in head shape, a total of 277 specimens from two locations in Belgium (Scheldt–Lippenbroek and Lake Weerde), in combination with a larger data set of 725 eels from river systems across Flanders (the northern part of Belgium) were examined. Our biometric data support the hypothesis that a head shape variation in ‘Belgian’ European eel is best described as having a bimodal distribution. Literature data suggest that this may be the result of phenotypic plasticity related to trophic segregation between morphs.

Details

Number of pages 9
Volume 285
Magazine issue 3
Pages (to-from) 230–238
Type A1: Web of Science-article
Category Research
Magazine Journal of Zoology
Issns 0952-8369|1469-7998
Publisher Wiley-Blackwell
Language English
Bibtex

@article{1a011889-23d3-4849-953b-42f4de725b06,
title = "Bimodality in head shape in European eel",
abstract = "The existence of two morphotypes, broadheaded and narrowheaded, in European eels Anguilla anguilla is common knowledge among fishermen and eel biologists in Europe. To test whether European eels really are dimorphic in head shape, a total of 277 specimens from two locations in Belgium (Scheldt–Lippenbroek and Lake Weerde), in combination with a larger data set of 725 eels from river systems across Flanders (the northern part of Belgium) were examined. Our biometric data support the hypothesis that a head shape variation in ‘Belgian’ European eel is best described as having a bimodal distribution. Literature data suggest that this may be the result of phenotypic plasticity related to trophic segregation between morphs.",
author = "C Ide and N De Schepper and J Christiaens and C Van Liefferinge and A Herrel and Geert Goemans and Patrick Meire and Caroline Geeraerts and D. Adriaens",
year = "2011",
month = jan,
day = "01",
doi = "10.1111/j.1469-7998.2011.00834.x",
language = "English",
publisher = "Wiley-Blackwell",
address = "Belgium",
}

Authors

C Ide
N De Schepper
J Christiaens
C Van Liefferinge
A Herrel
Geert Goemans
Patrick Meire
Caroline Geeraerts
D. Adriaens