Vertically migrating Isoxys and the early Cambrian biological pump.

Détails

Ressource 1Télécharger: Pates et al. 2021 Vertically migrating Isoxys.pdf (1677.95 [Ko])
Etat: Public
Version: Author's accepted manuscript
Licence: CC BY 4.0
ID Serval
serval:BIB_742F07D650F1
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Vertically migrating Isoxys and the early Cambrian biological pump.
Périodique
Proceedings. Biological sciences
Auteur(s)
Pates Stephen, Daley Allison C., Legg David A., Rahman Imran A.
ISSN
1471-2954 (Electronic)
ISSN-L
0962-8452
Statut éditorial
Publié
Date de publication
30/06/2021
Peer-reviewed
Oui
Volume
288
Numéro
1953
Pages
20210464
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
The biological pump is crucial for transporting nutrients fixed by surface-dwelling primary producers to demersal animal communities. Indeed, the establishment of an efficient biological pump was likely a key factor enabling the diversification of animals over 500 Myr ago during the Cambrian explosion. The modern biological pump operates through two main vectors: the passive sinking of aggregates of organic matter, and the active vertical migration of animals. The coevolution of eukaryotes and sinking aggregates is well understood for the Proterozoic and Cambrian; however, little attention has been paid to the establishment of the vertical migration of animals. Here we investigate the morphological variation and hydrodynamic performance of the Cambrian euarthropod Isoxys. We combine elliptical Fourier analysis of carapace shape with computational fluid dynamics simulations to demonstrate that Isoxys species likely occupied a variety of niches in Cambrian oceans, including vertical migrants, providing the first quantitative evidence that some Cambrian animals were adapted for vertical movement in the water column. Vertical migration was one of several early Cambrian metazoan innovations that led to the biological pump taking on a modern-style architecture over 500 Myr ago.
Mots-clé
Cambrian, Isoxys, biological pump, computational fluid dynamics, pelagic
Pubmed
Web of science
Open Access
Oui
Création de la notice
30/07/2021 10:09
Dernière modification de la notice
05/08/2021 6:10
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