Challenges of management strategy evaluation for small pelagic fish: the Bay of Biscay anchovy case study

2019 ◽  
Vol 617-618 ◽  
pp. 245-263 ◽  
Author(s):  
S Sánchez ◽  
L Ibaibarriaga ◽  
A Uriarte ◽  
R Prellezo ◽  
M Andrés ◽  
...  
Keyword(s):  
Management Strategy ◽  
Pelagic Fish ◽  
Bay Of Biscay ◽  
Small Pelagic Fish ◽  
Management Strategy Evaluation ◽  
Strategy Evaluation

scholarly journals Considerations for management strategy evaluation for small pelagic fishes

2021 ◽  
Author(s):  
Margaret C. Siple ◽  
Laura E. Koehn ◽  
Kelli F. Johnson ◽  
André E. Punt ◽  
T. Mariella Canales ◽  
...  
Keyword(s):  
Management Strategy ◽  
Management Strategy Evaluation ◽  
Pelagic Fishes ◽  
Strategy Evaluation

scholarly journals Bio-economic management strategy evaluation of deepwater stocks using the FLBEIA model

2013 ◽  
Vol 26 (4) ◽  
pp. 365-379 ◽  
Author(s):  
Dorleta Garcia ◽  
Agurtzane Urtizberea ◽  
Guzman Diez ◽  
Juan Gil ◽  
Paul Marchal
Keyword(s):  
Management Strategy ◽  
Economic Management ◽  
Management Strategy Evaluation ◽  
Strategy Evaluation

Using management strategy evaluation to establish indicators of changing fisheries

2019 ◽  
Vol 76 (9) ◽  
pp. 1653-1668 ◽  
Author(s):  
T.R. Carruthers ◽  
A.R. Hordyk
Keyword(s):  
Management Strategy ◽  
Statistical Power ◽  
Stock Assessment ◽  
Model Misspecification ◽  
Management Approach ◽  
Data Types ◽  
Quality Of Data ◽  
Management Strategy Evaluation ◽  
Strategy Evaluation ◽  
Management Procedures

A new indicator is described that uses multivariate posterior predictive data arising from management strategy evaluation (MSE) to detect operating model misspecification (exceptional circumstances) due to changing system dynamics. The statistical power of the indicator was calculated for five case studies for which fishery stock assessments have estimated changes in recruitment, natural mortality rate, growth, fishing efficiency, and size selectivity. The importance of the component data types that inform the indicator was also calculated. The indicator was tested for multiple types of management procedures (e.g., catch limits by stock assessment, size limits, spatial closures) given varying qualities of data. The statistical power of the indicator could be high even over short time periods and depended on the type of system change and quality of data. Statistical power depended strongly on the type of management approach, suggesting that indicators should be established that rigorously account for feedbacks between proposed management and observed data. MSE processes should use alternative operating models to evaluate protocols for exceptional circumstances to ensure they are of acceptable statistical power.

Unraveling the recruitment problem: A review of environmentally-informed forecasting and management strategy evaluation

2019 ◽  
Vol 217 ◽  
pp. 198-216 ◽  
Author(s):  
M.A. Haltuch ◽  
E.N Brooks ◽  
J. Brodziak ◽  
J.A. Devine ◽  
K.F. Johnson ◽  
...  
Keyword(s):  
Management Strategy ◽  
Management Strategy Evaluation ◽  
Strategy Evaluation

Management strategies for spasmodic stocks: a Canadian Atlantic redfish fishery case study

2020 ◽  
Vol 77 (4) ◽  
pp. 684-702
Author(s):  
Roberto Licandeo ◽  
Daniel E. Duplisea ◽  
Caroline Senay ◽  
Julie R. Marentette ◽  
Murdoch K. McAllister
Keyword(s):  
Inventory Management ◽  
Management Strategy ◽  
Management Strategies ◽  
Trawl Survey ◽  
Eastern Canada ◽  
Strategy Evaluation ◽  
Management Procedures ◽  
Harvest Control Rule ◽  
Sebastes Mentella

There exist few recommendations for managing stocks with spasmodic recruitment, despite such stocks being not uncommon. Management procedures (MPs), developed for two species of redfish (Sebastes mentella and Sebastes fasciatus) in eastern Canada, are recommended for setting catch limits during periods of high and low abundance. A well-designed fishery-independent trawl survey is essential to provide advance warning of strong recruitment events and project future recruitment. Under an “inventory management” strategy, a more appropriate aim in spasmodic stocks may be to maximize the number of years with “good catches,” instead of maximizing total catches, as is traditionally considered in management strategy evaluation (MSE). Following a spasmodic recruitment event, an empirical harvest control rule based on larger fish delays the harvest of large cohorts by a few years, targets more commercially valuable fish sizes, and reduces the risk of growth overfishing. Capped MPs produced longer periods of large catches than uncapped MPs. MPs allowed for low harvests during periods of low abundance, thus avoiding unnecessary hardship in the industry. MPs evaluated here could be good candidates for other stocks with similar or less extreme recruitment variability.

Sign in / Sign up

Export Citation Format

Share Document