ID |
1819 |
Citation |
Cox-Rogers, S., J.M.B Hume, K.S. Shortreed, and B. Spilsted (2010) A Risk Assessment Model for Skeena River Sockeye Salmon, Fisheries and Oceans Canada, Can. Manuscr. Rep. Fish. Aquat. Sci. 2920: viii + 60 p. |
Organization |
Fisheries and Oceans Canada |
URL |
http://publications.gc.ca/collections/collection_2010/mpo-dfo/Fs97-4-2920-eng.pdf |
Abstract/Description or Keywords |
This paper presents a risk assessment simulation model for Skeena River sockeye salmon harvested in marine and in-river fisheries in northern British Columbia. This paper also provides production and stock status background for Skeena River sockeye lakes. The model can be used to generate probabilistic statements about stock-specific catch, escapement, harvest rates, and fishery values under different or optional fishing scenarios. The model can also be used to evaluate re-building and recovery options. The model utilizes a stock and recruitment “engine” for predicting future production from specific escapements. The stock and recruitment parameters (productivity and capacity) used in the model are inferred from photosynthetic rate (PR) assessments of lake rearing capacity for 29 sockeye lakes (stocks) in the Skeena River drainage. User-supplied harvest rates are applied to estimated run-timing proportions (by stock) to calculate catch and escapement in each fishery. The model is spreadsheet-based and is run stochastically as a Monte Carlo simulation. We consider the simulation approach outlined in this paper to be a starting point for further work and development. Skeena River Sockeye Salmon; Risk Assessment Model; 2010; Aggregate Stock; stock assessment; mangement models |
Information Type |
Report |
Regional Watershed |
Skeena River |
Sub-watershed if known |
|
Aquifer # |
|
Comments |
|
Project status |
|
Contact Name |
|
Contact Email |
|