[HTML][HTML] Model validation for compositional data in stock assessment models: calculating residuals with correct properties

V Trijoulet, CM Albertsen, K Kristensen, CM Legault… - Fisheries …, 2023 - Elsevier
Stock assessment models are often used to inform fisheries management and need
therefore to be thoroughly validated. Different diagnostics exist to validate models including …

Data weighting: An iterative process linking surveys, data synthesis, and population models to evaluate mis-specification

JT Thorson, CC Monnahan, PJF Hulson - Fisheries Research, 2023 - Elsevier
Integrated stock assessments specify a distribution for multiple data types, and these
distributions control the relative leverage assigned to each datum. A decade of research has …

Spatiotemporal analysis of compositional data: increased precision and improved workflow using model-based inputs to stock assessment

JT Thorson, MA Haltuch - Canadian Journal of Fisheries and …, 2019 - cdnsciencepub.com
Stock assessment models are fitted to abundance-index, fishery catch, and age–length–sex
composition data that are estimated from survey and fishery records. Research has …

Process and sampling variance within fisheries stock assessment models: estimability, likelihood choice, and the consequences of incorrect specification

N Fisch, K Shertzer, E Camp… - ICES Journal of …, 2023 - academic.oup.com
Increasingly, mixed-effect fishery stock assessment models are being developed where
deviations about functional forms of different processes are modelled as random effects and …

[PDF][PDF] A state-space stock assessment model for American plaice on the Grand Bank of Newfoundland

AMJ Perreault, LJ Wheeland, MJ Morgan… - Journal of Northwest …, 2020 - journal.nafo.int
The current stock assessment model for American plaice (Hippoglossoides platessoides) on
the Grand Bank of Newfoundland (NAFO Divisions 3LNO) is a virtual population analysis …

[HTML][HTML] An evaluation of common stock assessment diagnostic tools for choosing among state-space models with multiple random effects processes

C Li, JJ Deroba, TJ Miller, CM Legault, CT Perretti - Fisheries Research, 2024 - Elsevier
State-space models have received increasing attention in fisheries stock assessments given
their flexibility to incorporate multiple sources of process errors. Identifying which process …

Rebuilding and Reference Points Under Compensatory and Depensatory Recruitment: A Meta‐Analysis of Northeast Atlantic Fish Stocks

CM Albertsen, T Perälä, M Cardinale… - Fish and …, 2025 - Wiley Online Library
Modern management of fish stocks is based on integrating the precautionary approach with
the maximum sustainable yield framework. It relies on accurate estimation of precautionary …

Turning reference points inside out: comparing MSY reference points estimated inside and outside the assessment model

V Trijoulet, CW Berg, DCM Miller… - ICES Journal of …, 2022 - academic.oup.com
Reference points are used in fisheries management to infer stock status and inform future
fishing opportunities. They can be estimated externally to the assessment model assuming …

Comparing the performance of three data-weighting methods when allowing for time-varying selectivity

H Xu, JT Thorson, RD Methot - Canadian Journal of Fisheries …, 2020 - cdnsciencepub.com
How to properly weight composition data is an important ongoing research topic for fisheries
stock assessments, and multiple methods for weighting composition data have been …

Model-based estimates of reference points in an age-based state-space stock assessment model

CM Albertsen, V Trijoulet - Fisheries Research, 2020 - Elsevier
Reference points are central in the current management of marine living resources.
However, reference points are estimated from data and model estimates. Therefore, they are …