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Remi Daigle

Effects of larval swimming behaviour on the vertical and horizontal distribution patterns of marine invertebrate larvae

Remi Daigle
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Originally from Moncton, NB, I finished me my BSc in Marine Biology at Dalhousie University. Before starting my PhD, I worked at the University of British Columbia/Bedford Institute of Oceanography on the invasion of the green crab (Carcinus maenas) on the west coast.

Anna Metaxas

Oceanography, Dalhousie University

8/2008 - 6/2013

Population Connectivity, PC-06: Population conectivity and dispersal in contrasting species

remi.daigle@dal.ca

Daigle 1This project aimed to increase our understanding of mechanisms that influence larval dispersal in marine benthic invertebrates, particularly in the absence of strong oceanographic features (e.g. estuarine plumes). Laboratory experiments identified behavioural mechanisms that regulate the vertical distribution of larvae in response to thermal stratification, and field studies in St. George’s Bay, Nova Scotia (NS), Canada, examined the relationship between larval abundance and physical variables (temperature, etc).

The specific project/thesis aims project are:

1. Identify relevant mechanisms and model larval behaviour in response to thermal stratification

2. Determine factors which affect larval distribution patterns at multiple scales (in the field)

This thesis and other work from the St-George’s Bay project (Michelle Lloyd, Janelle Hrycik and Ryan Stanley) will increase our understanding of factors that affect larval dispersal in contrasting species which is critical to estimating population connectivity.

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