Multidimensional state of the north-central Peruvian anchovy stock
Scientific question
How has the multidimensional state of the north-central Peruvian anchovy stock changed in response to natural variability and fishing pressure within the Humboldt Current System?
Study system
The programme focuses on the north-central stock of Peruvian anchovy (Engraulis ringens) and treats stock condition as a multidimensional ecological state rather than a single biomass signal.
Evidence base
The analytical framework integrates acoustic surveys, fishery-dependent observations, biological sampling, demographic information, spatial indicators, and environmental information from oceanographic and satellite sources.
Analytical framework
- Dimension-specific indicators of population magnitude, condition, reproduction, demographic structure, spatial distribution, and size structure.
- Multivariate integration and latent-state approaches.
- Trend, breakpoint, regime, and threshold diagnostics.
- Pressure–state relationships involving environmental and fishing variables.
- Spatio-temporal analyses of abundance, distribution, and habitat conditions.
- Sensitivity analysis to indicator composition and integration choices.
Current status
Active research programme supporting complementary manuscripts on multidimensional stock state, pressure–response relationships, structural changes, and adaptive fisheries assessment.
Expected outputs
- Multidimensional stock-state framework.
- Peer-reviewed manuscripts and conference contributions.
- Reproducible analytical workflows.
- Diagnostic indicators for monitoring and adaptive management.
Repository architecture
This is a programme-level page. Individual manuscripts and analytical components should link to dedicated canonical repositories as those repositories are finalized and audited; the website will not duplicate their source code or analysis files.