El próximo jueves 16/02, a las 11:30h PT, 12:30h CET, Marta Cousido Rocha impartirá una charla sobre los “surplus
production models” y su aplicación en pesquería para la evaluación de los
recursos pesqueros en situaciones de datos-limitados.
Os esperamos el jueves, y os dejamos la información referente
a la charla y el link abajo
Link do evento:
https://videoconf-colibri.zoom.us/j/91404148973?pwd=THBLL2xjeFlsRU5RSy9jdHY4UFljUT09Meeting ID: 914 0414 8973
Password: 583275
Surplus Production Models: a practical review of recent approaches
Increasing the knowledge of approaches for estimating the status of data-limited stocks is of crucialimportance since the vast majority of stocks are data limited, i.e., there is not enough data toconduct a fully integrated statistical catch at age or length assessment. Among the different datalimited methods, the surplus production models (SPMs) are usually considered the most completedata-limited assessment methods since they are the unique method that provides a full stockassessment. Due to the high interest on the application of SPMs for assessing data-limited stocks,our contribution focuses on providing a practical review of these models and their correspondingcharacteristics.After introducing the general SPM formulation, framework and features, the review focuses on themost relevant SPMs, based on their recent applications on well-known marine researchorganizations: ASPIC (A Surplus-Production Model Incorporating Covariates), SPiCT (SurplusProduction model In Continuous Time) and JABBA (Just Another Bayesian Biomass Assessment).For each of them details of their formulation, main features, and quality and characteristics of theavailable software are provided. From such information, a comparative study is carried outhighlighting the advantages and disadvantages of each of the three SPMs.To conclude, recommendations for their use in the assessment of data-limited stocks are providedallowing to decide whether SPM can be an appropriate option for a specific stock assessment andadvice, and then which of the addressed SPMs must be applied.
Marta Cousido-Rocha holds a degree in Mathematics and she completed a MSc in Statistics Techniques (both at University of Santiago de Compostela), and a PhD in Statistics (at University of Vigo). Currently, she is developing in the Spanish Institute of Oceanography,working on statistical modelling applied to fisheries science. Her interests range from assessment models for data-limited fisheries to integrated analysis models, and Management Strategy Evaluation procedures. Additionally, it has also been interested in advancing in the knowledge of the spatio-temporal distribution of the stocks, the improvement of the standardization of relative biomass indices or the analysis of the temporal evolution of the life traits of different species.