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Elmer Quispe-Salazar

Elmer Quispe-Salazar

Marine quantitative ecologist · Fisheries scientist

I study changing marine populations and fisheries using statistical modelling, stock assessment, spatio-temporal analysis, and reproducible scientific computing.

Peru · Humboldt Current

Pelagic fisheries · Statistical ecology

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ORCID and OpenAlex · updated 07 Sep 2026. Google Scholar is linked for discovery and is not scraped.

Suitability of the gonadosomatic index in Peruvian Anchoveta

Sexual maturity, a 5% critical threshold, and seasonal variation

VI SIBECORP conference presentation on gonadosomatic-index diagnostics and maturity classification in Peruvian anchoveta.

Conference presentation · 11 November 2024 · Lisbon, Portugal

VI Simpósio Ibero-Americano de Ecologia Reprodutiva, Recrutamento e Pesca (VI SIBECORP)

Overview

This presentation evaluated the gonadosomatic index (GSI) as an operational indicator of gonadal maturity in Peruvian anchoveta (Engraulis ringens). The work examined whether GSI and complementary predictors can classify maturity stages, whether a critical GSI threshold can identify active maturity phases, and how that threshold varies through the reproductive cycle.

The conference contribution formed part of the methodological development that was subsequently extended into peer-reviewed work on classification models for gonadal maturity.

Authorship

Authors: Elmer Quispe-Salazar and Javier Sánchez.
Presenter: Elmer Quispe-Salazar.

Public materials

• Conference record and presentation material
• https://doi.org/10.13140/RG.2.2.32795.73767
• VI SIBECORP event page

Related publication

The subsequent peer-reviewed study is listed under Publications: Classification models based on the gonadosomatic index to determine gonadal maturity stages: a case study in the Peruvian anchovy Engraulis ringens (2025, Scientia Marina).