Organizers: Marc Besson1,2, Jack O’Connor3, William Feeney4 & Rohan Brooker5

Affiliations: 1/ CRIOBE – USR 3278 CNRS EPHE UPVD, PSL, LabEX Corail, Moorea, French Polynesia ; 2/ Observatoire Océanologique de Banyuls-sur-Mer, UMR7232, Université Pierre et Marie Curie Paris, Banyuls-sur-Mer, France ; 3/School of BioSciences, University of Melbourne, Parkville, VIC; 4/ School of Biological Sciences, University of Queensland, Australia; 5/ School of Biology, Georgia Institute of Technology, 30318 Atlanta, Georgia, USA

Email: marc.besson@ens-lyon.fr; Jack.OConnor@student.uts.edu.au; w.feeney@uq.edu.au; rbrooker@udel.edu

Lead contact: Marc Besson

Description: Life history transitions often correspond with major developmental and ecological shifts. For instance, most marine and freshwater fishes have a two-part life cycle, consisting of a dispersive larval phase and largely sedentary juvenile / adult phase. The transition from pelagic larva to benthos-associated juvenile (recruitment) is a key step for the replenishment of fish populations. As the condition and biodiversity of aquatic habitats continues to decline, maintaining larval recruitment is increasingly seen as critical for ensuring habitat and population resilience. Given the threats now facing fishes globally, it is increasingly important that we understand the processes that influence where larvae settle (e.g. the role of hydrodynamic and behavioural processes), and what determines post-settlement survival (e.g. development, growth, competition). Our session aims to present recent research on larval recruitment (including settlement and post-settlement processes), to examine the important drivers of recruitment in a changing environment, and the consequences for resilience, conservation, and marine management.

Expected Audience: This topic will appeal to an international audience of fish biologists and larval ecologists working in freshwater, estuarine, and marine environments. We are expecting a very broad audience from Australia, Fiji, France, Indonesia, Japan, New Zealand, Taiwan, USA, and many countries interested in the Indo-Pacific region.