Improving ecological models for a sustainable development of bivalve culture in eutrophic estuarine complexes



The carrying capacity of coastal systems for bivalve culture has typically been investigated using mathematical models restricted to a Nutrient-Phytoplankton-Zooplankton-Detritus-Cultured Bivalve representation. PARR-2015-G-11 aims to develop a more detailed understanding of nutrient dynamics to accurately gauge the influence exerted by cultured bivalves. The addition of macroalgae like sea lettuce in a model may better refine primary production, especially in eutrophic systems. The addition of wild bivalve population modules will also be coupled to an existing ecosystem carrying capacity model. Model development will be supported by field and experimental work to characterize distribution, abundance and growth for both macroalgae and wild bivalves. Model application will be performed for Malpeque Bay, PEI; however, the model will be given a generic structure allowing future applications to other coastal embayments. Adding these new modules will increase model veracity and provide new insights into aquaculture-coastal ecosystem interactions, especially in quantifying the influence on species with commercial, recreational and aboriginal value.






Shedding light on the effects of oyster farming

Program Name

Program for Aquaculture Regulatory Research (PARR)


2015 - 2018

Principal investigator

Thomas Guyondet
Research scientist, Gulf Fisheries Centre, Moncton, NB