Brady K. Quinn (B.Sc.)

M.Sc. candidate, University of New Brunswick (Saint John)


Email: bk.quinn@unb.ca

Personal website: www.unbsj.ca

CV (Résumé)



B.Sc. - 2006-2010 - Mount Allison University

M.Sc. - 2011-Present - University of New Brunswick (Saint John)


Keywords: American lobster, bio-physical modelling, fisheries connectivity, large-scale patterns, larval drift, larval supply, metapopulation dynamics, potential connectivity, source-sink dynamics, temperature-dependent larval development


Assessing potential influence of larval development time and drift on American lobster (Homarus americanus) large-scale spatial connectivity

(CFRN Project: 1.2 - Metapopulation dynamics, management areas and biological units of lobster in eastern Canada)
Supervisor(s): Rémy Rochette and Joel Chassé (DFO)


American lobster adults live on the sea bottom, while lobster larvae are planktonic and drift with ocean currents. Because lobster larvae could drift over great distances from where they hatch to where they settle on the bottom, recruitment of lobsters to the fishery in a given area may depend on larval supply from other areas. This potential for connectivity between different fisheries areas poses a problem for management, as it means we cannot easily distinguish lobster populations or stocks. We are using a computer model of lobster biology coupled to a physical oceanographic model covering most of the American lobster's geographic range to estimate the potential large-scale connectivity (via larval drift) of different source-sink areas, including within and between fisheries management areas. We are also testing the sensitivity of potential connectivity and settlement predicted by the model to mortality and temperature-dependant larval development functions included in the biological model.

Last edited by Susan Thompson , based on work by Morgan MacPherson .
Page last modified on Monday 15 of October, 2012 14:16:26 ADT.