Behavioural approach to larval dispersal in the ocean

The journey of a coral-reef fish larva

Jean-Olivier Irisson - Collection Omn.univ.europ.

236 pages, parution le 25/08/2010

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Résumé

Most marine organisms that live near the coast broadcast their eggs and larvae into the vast expanses of the ocean. In many species, this pelagic episode is the sole opportunity for dispersal. As such, it structures the connections between populations which, in turn, determine the demography and genetic composition of coastal communities. Contrary to common belief, these "larvae" are not just drafts of the adults, passively roaming the ocean; they are very specialised organisms, often tightly adapted to their environment. In this book, I strive to evaluate the consequences of the behaviour of fish larvae during their pelagic life. I present experimental approaches to quantify larval orientation and swimming in situ. I detail the analysis of data collected during an oceanographic cruise to characterise the distribution of larvae in three dimensions and understand physical-biological interactions in the ocean. Finally, I introduce a novel modelling framework, drawing from cost minimisation techniques traditionally used in economics or in the optimal foraging theory, which allows to integrate larval behaviour into Lagrangian models of larval dispersal.

Caractéristiques techniques

	PAPIER
Éditeur(s)	Editions universitaires européennes
Auteur(s)	Jean-Olivier Irisson
Collection	Omn.univ.europ.
Parution	25/08/2010
Nb. de pages	236
Format	15 x 22
Couverture	Broché
Poids	353g
EAN13	9786131527401