Souquet, Louise;
Basuyaux, Olivier;
Guichard, Gwendoline;
Herrel, Anthony;
Rouget, Isabelle;
Evans, Susan;
moazen, Mehran;
(2023)
The growth of the buccal mass in Sepia officinalis: functional changes throughout ontogeny.
Marine Biology
, 170
(7)
, Article 82. 10.1007/s00227-023-04224-1.
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Abstract
Due to their small size, juveniles are more likely to show lower absolute levels of performance leading to a potential competitive disadvantage compared to adults. Therefore, juveniles are expected to compensate by showing a higher relative performance, and/or partitioning resources to overcome this performance disadvantage. Here, we investigate the link between ontogeny and feeding performance in the common cuttlefish Sepia officinalis. We explore the changes in beak shape, wear pattern, mechanical properties, muscular anatomy, and bite force during growth from 3-month post hatching to adults. We show that both upper and lower beaks present important ontogenetic shape variation in the rostrum area that might be due to wear induced by feeding. The mechanical properties of the beaks in juveniles indicate greater resistance compared to adults. Tanning observed on the beaks provides reinforcement to areas under high load during biting. In addition, muscle development and relative bite force were found to differ between cuttlefish of different ages, resulting in juveniles having a similar bite force for their size but with a muscular advantage for opening. Finally, an isometric relation is found in the bite force of S. officinalis, with no sign of feeding performance compensation in juveniles. Feeding performance thus does not reflect the ontogenetic shift from a crustacean-based diet in juveniles to a fish-based diet in adults.
| Type: | Article |
|---|---|
| Title: | The growth of the buccal mass in Sepia officinalis: functional changes throughout ontogeny |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/s00227-023-04224-1 |
| Publisher version: | https://doi.org/10.1007/s00227-023-04224-1 |
| Language: | English |
| Additional information: | © 2023 Springer Nature Switzerland AG. This article is licensed under a Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Cephalopods, Beaks, Bite force, Anatomy, Mechanical properties, Feeding |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10170598 |
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