Research Document - 2007/083
Assessing allowable harm and recovery efforts in Lake Ontario Atlantic salmon (Salmo salar)
By Vélez-Espino, L.A., and M.A. Koops
Abstract
Atlantic salmon (Salmo salar) was extirpated from the Lake Ontario basin by the end of the 19th century. Continuous restocking attempts have been unsuccessful in establishing self-sufficient populations. We use a demographic perturbation analysis to assess the maximum allowable harm and minimum recovery efforts for Lake Ontario Atlantic salmon (LOAS). Our results indicate that (i) a recreational fishery for LOAS and management efforts to improve population performance can coexist through effective fishing regulations and recovery strategies, (ii) the most effective and feasible way of improving the population is through the survival rates of immature individuals, and (iii) catch size limits can be used as a conservative, risk-averse regulation for maximum allowable fishing mortality. This document is provided in support of a recovery potential assessment (RPA) conducted for Lake Ontario Atlantic salmon.
Accessibility Notice
This document is available in PDF format. If the document is not accessible to you, please contact the Secretariat to obtain another appropriate format, such as regular print, large print, Braille or audio version.
- Date modified: