Addressing bycatch of depleted species through a marine conservation network in the Canadian Atlantic

Bycatch of depleted and vulnerable species is a pressing conservation issue that undermines the sustainability of fisheries worldwide. Here, we utilised spatiotemporal modelling of fisheries-independent survey data to evaluate the potential for existing and proposed Marine Conservation Areas (MCAs) in Atlantic Canada to reduce bycatch vulnerability for three severely-depleted species—Atlantic cod (Gadus morhua), American plaice (Hippoglossoides platessoides) and White hake (Urophycis tenuis)—commonly caught as bycatch in commercial trawl fisheries on the Scotian Shelf-Bay of Fundy. We overlaid predicted distributions of abundance for these depleted species with those of commercially targeted Haddock (Melanogrammus aeglefinus) and Pollock (Pollachius virens) to identify areas of high-vulnerability.