Jason Mullen

PhD Candidate

Jason MullenBSc, St. Mary’s University
MSc, Dalhousie University

Research: "The Pathways and Effects of Atlantic Salmon Farm Nutrient Enrichment within an Integrated Multi-Trophic Aquaculture System (IMTA) in the Bay of Fundy, Canada"

Nutrification of the marine environment has gained considerable attention in recent decades with expanded anthropogenic activities and development in coastal zones. Aquaculture is one potential source of nutrient enrichment.

In the Bay of Fundy, Canada, blue mussels (Mytilus edulis) and kelps (Saccharina latissima and Alaria esculenta) have successfully utilized nutrients (both organic and inorganic) from co-cultured Atlantic salmon (Salmo salar) resulting in increased growth rates and nutrient recovery.

However, pathways and physiological effects (reproduction and growth) of salmon farm nutrients on targeted and non-targeted species within the localized ecosystem are not clearly understood. To investigate these issues an additional target species Strongylocentrotus droebachiensis and a non-target exotic invasive species Caprella mutica  for investigation.

Such research is essential for model development of nutrient recovery and efficiency of commercial IMTA sites. The research results will ultimately improve our understanding of nutrification pathways and effects within IMTA sites and coastal ecosystems.