AUTHOR=Song Solène , Żukowski Stanisław , Gambini Camille , Dantan Philippe , Mauroy Benjamin , Douady Stéphane , Cornelissen Annemiek J. M. TITLE=Morphogenesis of the gastrovascular canal network in Aurelia jellyfish: Variability and possible mechanisms JOURNAL=Frontiers in Physics VOLUME=Volume 10 - 2022 YEAR=2023 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2022.966327 DOI=10.3389/fphy.2022.966327 ISSN=2296-424X ABSTRACT=Patterns in biology can be considered as predetermined, or arising from a self-organizing instability. Variability in the pattern can thus be interpreted as a trace of an instability, growing out from noise. Variability can thus hint toward an underlying morphogenetic mechanism. Here we present the variability of the gastrovascular system of the Jellyfish Aurelia. In this variability emerge a typical biased reconnection between canals, and correlated reconnections. Both phenomena can be interpreted as traces of mechanistic effects, the swimming contractions on the tissue surrounding the gastrovascular canals, and the mean fluid pressure inside them, respectively. This reveals the gastrovascular network as a model system to study morphogenesis of circulation networks and the morphogenetic mechanisms at play.