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Critical points of natural and anthropogenic pressures and responses in the state of the north–central anchovy stock in the pelagic system of the Peruvian Sea

SPF-2026 poster on pressure–state relationships, nonlinear responses, and potential thresholds in the north-central Peruvian anchovy stock.

Poster presentation · 8 May 2026 · La Paz, Baja California Sur, Mexico

SPF-2026 International Symposium: Navigating Changes in Small Pelagic Fish and Forage Communities

Overview

This contribution examined how natural variability and fishing-related pressures can be associated with changes in the multidimensional state of the north-central Peruvian anchovy stock. The analytical perspective focuses on nonlinear pressure–response relationships, critical regions, potential thresholds, and warning signals rather than assuming that stock-state responses are gradual and linear.

Poster on critical points and stock-state responses of the north-central Peruvian anchovy

The framework connects environmental and anthropogenic pressures with biological, demographic, reproductive, and spatial indicators of stock state. Its purpose is to support ecosystem-informed diagnosis and the development of adaptive management questions that can later be evaluated with formal statistical models and management strategy evaluation.

Authorship and presentation

Authors: Elmer Quispe-Salazar, Álvaro Recoba, and Jorge Tam.

Presenter: Álvaro Recoba.

Public materials