Walleye fisheries

Development of a surplus production model to assist management of the walleye fishery in Lake Nipissing

Includes bibliographical references. 'In this study, we developed a surplus-production model to assess the walleye stock in Lake Nipissing. Two indices of stock biomass were used in the model: (1) harvest per unit effort (HPUE, kg/hour) of recreational fishers from 1976 to 2011; and (2) Fall Walleye Index Netting catch per unit effort (CUEW, kg/net) from 1998 to 2011. We compared two model configurations (Graham-Schaefer logistic model and Pella-Tomlinson model with a specified shape parameter) and two forms of catchability (density-dependent and constant).

Lake Nipissing data review, 1967 to 2011

Includes bibliographical references. 'Since the 1970s, the Lake Nipissing ecosystem has undergone many substantial changes. Introduction of non-native species and increases in avian predators have the potential to influence ecosystem function in both offshore and nearshore areas. ... The results of my study contribute to a more comprehensive understanding of how disturbances have affected the Lake Nipissing Walleye population'--Introduction.

Walleye recreational fishery on Lake Scugog.

'Long-term studies of Lake Scugog are showing that the walleye population is in decline and juvenile walleye are particularly scarce. A regulation change is required to protect adults in the population so they can produce more walleye in the future. The Ministry of Natural Resources and Forestry (MNRF), with support from the Fisheries Management Zone 17 (FMZ 17) Advisory Council, is inviting the public to provide input on proposed changes to fishing regulations for walleye on Lake Scugog'--Page [1].

Walleye recreational fishery on Lake Scugog. (French content)

'Long-term studies of Lake Scugog are showing that the walleye population is in decline and juvenile walleye are particularly scarce. A regulation change is required to protect adults in the population so they can produce more walleye in the future. The Ministry of Natural Resources and Forestry (MNRF), with support from the Fisheries Management Zone 17 (FMZ 17) Advisory Council, is inviting the public to provide input on proposed changes to fishing regulations for walleye on Lake Scugog'--Page [1].