Ghent University Academic Bibliography

Advanced

Analysis of ontogenetic changes in head shape and diet in a catfish with moderately enlarged jaw adductors (Clariallabes melas)

Marisa Wyckmans, Anthony Herrel and Dominique Adriaens UGent (2011) BELGIAN JOURNAL OF ZOOLOGY. 141(2). p.11-20
abstract
Jaw adductor hypertrophy, or the presence of enlarged jaw-closing muscles, has arisen several times independently in African clariid catfish. Previous work has demonstrated that species characterized by enlarged jaw adductors may have unusual ways of foraging such as terrestrial foraging and prey capture, and often include a large proportion of hard and terrestrial prey in their diet. However, relatively little is known about species of the genus Clariallabes with an intermediate degree of jaw adductor hypertrophy. In the present study we present data on head shape and diet for a range of sizes of specimens of a poorly known species of Clariallabes, C. melas. Our data show that growth patterns in this species and the previously studied C. longicauda are similar in some ways (e.g. positive allometry of the growth of the jaw muscles) but different in others (negative allometry in hyoid width). However, C. melas has a smaller head for its body size in all dimensions. Due to the large number of empty stomachs we encountered, dietary data remain preliminary, but suggest a varied diet including both hard and soft prey. Our data show that a large amount of variation in head shape may exist even among related species and that species with jaw adductor hypertrophy generally show positive allometry in the growth of the jaw adductors and associated structures. Whether jaw muscle hypertrophy is an adaptive trait in clariid catfish awaits further comparative analyses testing for the evolutionary association between jaw adductor hypertrophy and the inclusion of hard prey into the diet.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
biting, suction, muscle, fish, feeding, ontogeny, SUCTION FEEDING PERFORMANCE, LIZARD ANOLIS-CAROLINENSIS, CLARIAS-GARIEPINUS, CRANIAL MORPHOLOGY, BITE PERFORMANCE, AFRICAN CATFISH, SILURIFORMES, CLARIIDAE, EVOLUTION, TELEOSTEI
journal title
BELGIAN JOURNAL OF ZOOLOGY
Belg. J. Zool.
volume
141
issue
2
pages
11 - 20
Web of Science type
Article
Web of Science id
000298057100002
JCR category
ZOOLOGY
JCR impact factor
0.531 (2011)
JCR rank
121/146 (2011)
JCR quartile
4 (2011)
ISSN
0777-6276
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2125838
handle
http://hdl.handle.net/1854/LU-2125838
alternative location
http://www.naturalsciences.be/institute/associations/rbzs_website/bjz/back/contents_BJZ_141_2
date created
2012-05-31 17:20:05
date last changed
2016-12-19 15:42:56
@article{2125838,
  abstract     = {Jaw adductor hypertrophy, or the presence of enlarged jaw-closing muscles, has arisen several times independently in African clariid catfish. Previous work has demonstrated that species characterized by enlarged jaw adductors may have unusual ways of foraging such as terrestrial foraging and prey capture, and often include a large proportion of hard and terrestrial prey in their diet. However, relatively little is known about species of the genus Clariallabes with an intermediate degree of jaw adductor hypertrophy. In the present study we present data on head shape and diet for a range of sizes of specimens of a poorly known species of Clariallabes, C. melas. Our data show that growth patterns in this species and the previously studied C. longicauda are similar in some ways (e.g. positive allometry of the growth of the jaw muscles) but different in others (negative allometry in hyoid width). However, C. melas has a smaller head for its body size in all dimensions. Due to the large number of empty stomachs we encountered, dietary data remain preliminary, but suggest a varied diet including both hard and soft prey. Our data show that a large amount of variation in head shape may exist even among related species and that species with jaw adductor hypertrophy generally show positive allometry in the growth of the jaw adductors and associated structures. Whether jaw muscle hypertrophy is an adaptive trait in clariid catfish awaits further comparative analyses testing for the evolutionary association between jaw adductor hypertrophy and the inclusion of hard prey into the diet.},
  author       = {Wyckmans, Marisa and Herrel, Anthony and Adriaens, Dominique},
  issn         = {0777-6276},
  journal      = {BELGIAN JOURNAL OF ZOOLOGY},
  keyword      = {biting,suction,muscle,fish,feeding,ontogeny,SUCTION FEEDING PERFORMANCE,LIZARD ANOLIS-CAROLINENSIS,CLARIAS-GARIEPINUS,CRANIAL MORPHOLOGY,BITE PERFORMANCE,AFRICAN CATFISH,SILURIFORMES,CLARIIDAE,EVOLUTION,TELEOSTEI},
  language     = {eng},
  number       = {2},
  pages        = {11--20},
  title        = {Analysis of ontogenetic changes in head shape and diet in a catfish with moderately enlarged jaw adductors (Clariallabes melas)},
  url          = {http://www.naturalsciences.be/institute/associations/rbzs\_website/bjz/back/contents\_BJZ\_141\_2},
  volume       = {141},
  year         = {2011},
}

Chicago
Wyckmans, Marisa, Anthony Herrel, and Dominique Adriaens. 2011. “Analysis of Ontogenetic Changes in Head Shape and Diet in a Catfish with Moderately Enlarged Jaw Adductors (Clariallabes Melas).” Belgian Journal of Zoology 141 (2): 11–20.
APA
Wyckmans, M., Herrel, A., & Adriaens, D. (2011). Analysis of ontogenetic changes in head shape and diet in a catfish with moderately enlarged jaw adductors (Clariallabes melas). BELGIAN JOURNAL OF ZOOLOGY, 141(2), 11–20.
Vancouver
1.
Wyckmans M, Herrel A, Adriaens D. Analysis of ontogenetic changes in head shape and diet in a catfish with moderately enlarged jaw adductors (Clariallabes melas). BELGIAN JOURNAL OF ZOOLOGY. 2011;141(2):11–20.
MLA
Wyckmans, Marisa, Anthony Herrel, and Dominique Adriaens. “Analysis of Ontogenetic Changes in Head Shape and Diet in a Catfish with Moderately Enlarged Jaw Adductors (Clariallabes Melas).” BELGIAN JOURNAL OF ZOOLOGY 141.2 (2011): 11–20. Print.