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Walter Verraes
Researcher at Ghent University
Publications - 41
Citations - 874
Walter Verraes is an academic researcher from Ghent University. The author has contributed to research in topics: Neurocranium & Skull. The author has an hindex of 18, co-authored 41 publications receiving 858 citations.
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Ontogeny of the osteocranium in the African catfish, Clarias gariepinus burchell (1822) (Siluriformes: Clariidae): Ossification sequence as a response to functional demands
TL;DR: The ontogeny of the bony skull of the African catfish, Clarias gariepinus, is studied from initial ossification until a complete skull is formed, which seems to be related to the functional demands that arise in a developing larva.
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Model of jaw depression during feeding in Astatotilapia elegans (Teleostei Cichlidae). Mechanisms for energy storage and triggering.
TL;DR: The position of the hyalomandibular connection, dorsal to the mandibular‐suspensorial articulation, appears to be of crucial importance in balancing the forces of sternohyoideus and the body muscles.
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Ontogenetic shift in mouth opening mechanisms in a catfish (Clariidae, Siluriformes): A response to increasing functional demands
TL;DR: The coupling of the chronology of the shift in mouth opening mechanisms and several morphological, behavioral, and physiological changes during ontogeny, related to feeding and respiration, make it possible to distinguish five important phases in the early life history of C. gariepinus.
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Bite performance in clariid fishes with hypertrophied jaw adductors as deduced by bite modeling.
TL;DR: Biomechanical modeling of the cranial apparatus in four clariid representatives showing a gradual increase in the hypertrophy of the jaw adductors is used to investigate whether bite force actually increased, and static bite modeling shows that the apparenthypertrophy results in an increase in bite force.
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Comparative study on the cranial morphology of Gymnallabes typus (Siluriformes: Clariidae) and their less anguilliform relatives, Clariallabes melas and Clarias gariepinus.
TL;DR: A phylogenetic analysis of the Clariidae, which is in progress, could check the validity of Boulenger's hypothesis that predecessors of the primitive fishes, such as Heterobranchus and most Clarias, would have evolved into progressively anguilliform clariids.