Abstract


DISPERSAL SCALES IN PLANKTON AND MARINE BENTHIC INTERVERTEBRATES: A GENETIC META-ANALYSIS APPROACH

Population genetic structure of marine organisms is known to be determined mainly by their dispersal ability, ocean currents and seascape features. Here we tested whether plankton (phytoplankton and zooplankton) species have a higher dispersal distance compared to benthic macroinvertebrate species. To that end, we performed a literature survey to compile genetic population structure data. In particular, we estimated mean dispersal distances based upon Isolation-By-Distance (IBD) slope (i.e. FST vs. geographic distance) using two types of approaches: 1) we estimated IBD slopes for each species; and 2) we pooled all pairwise FST and geographic distance data for all species at each group to subsequently estimate an overall IBD slope for each group. From the literature search, more than 150 studies have been reviewed (77 benthic species and 57 plankton species). Results showed significant differences in pooled-based IBD slopes (p-value<0.01), with phytoplankton and zooplankton presenting lower IBD slopes than macrobenthos, although species by species analysis did not showed significant differences. This meta-analysis highlights the low number of studies dealing with the genetic population structure of plankton species, especially in phytoplankton.

Authors

Villarino, E., AZTI-Tecnalia, Spain, evillarino@azti.es

Chenuil, A., CNRS, France, anne.chenuil@imbe.fr

Chust, G., AZTI-Tecnalia, Spain, gchust@azti.es

Details

Oral presentation

Session #:007
Date: 2/25/2015
Time: 11:15
Location: Albeniz (Floor -2)

Presentation is given by student: No