Multidimensional state of the north-central Peruvian anchovy stock
Published:
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 project focuses on the north-central stock of Peruvian anchovy (Engraulis ringens), a short-lived small pelagic fish that supports one of the world’s largest fisheries and responds rapidly to environmental variability.
Data
The analytical framework integrates acoustic surveys, fishery-dependent observations, biological sampling, demographic information, and environmental data from oceanographic and satellite sources.
Methods
- Multidimensional stock-state indicators.
- Dimension-specific indicator selection and multivariate integration.
- Trend, breakpoint, regime-shift, and threshold analysis.
- Pressure–state relationships involving environmental and fishing variables.
- Spatio-temporal analysis of abundance, distribution, and habitat conditions.
Current status
Active research programme and master’s thesis framework. The work is being developed as a set of complementary manuscripts on stock state, pressure–response relationships, structural changes, and adaptive fisheries assessment.
Expected outputs
- Multivariate stock-state framework.
- Scientific manuscripts and conference contributions.
- Reproducible analytical workflows.
- Indicators for monitoring and adaptive management.
Related sections
See Research, Publications, and Talks.