no code implementations • 11 Nov 2023 • Steven P. Rossi, Sean P. Cox. Hugues P. Benoît
Atlantic cod (Gadus morhua) in the southern Gulf of St. Lawrence (sGSL) declined to low abundance in the early 1990s and have since failed to recover due to high natural mortality, which has been linked to grey seal (Halichoerus grypus) predation.
no code implementations • 16 Aug 2023 • Steven P. Rossi, Yanjun Wang, Cornelia E. den Heyer, Hugues P. Benoît
We developed a statistical catch-at-age model for 4X5Y cod that accounted for both grey seal predation and estimated bycatch/discards to evaluate the degree to which either of these factors may influence cod mortality.
no code implementations • 13 Jan 2023 • Steven P. Rossi, Sean P. Cox, Samuel D. N. Johnson, Ashleen J. Benson
The Spot Prawn trap fishery off the west coast of British Columbia (BC) is managed using a fixed escapement strategy that aims to prevent recruitment overfishing while maximizing expected long-term yield by closing the fishery when the catch rate of spawners, projected to the following spring, drops below 1. 7 spawners per trap (the de jure rule).