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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.

Spatio-temporal patterns of the Peruvian tuna purse-seine fishery

Characterizing catch, effort, operational behaviour, fishing modes, species composition, standardized CPUE, and environmental associations.

Status: Active · Type: Manuscript programme

Scientific question

How have catch, effort, operational behaviour, fishing modes, and species composition changed in the Peruvian tuna purse-seine fishery, and how are these patterns related to environmental variability?

Evidence base

The project uses fishing logbooks, trip and set information, vessel characteristics, catch composition, size information, fishing-mode classifications, and environmental covariates inside and outside the Peruvian exclusive economic zone.

Methods

• Descriptive analysis of catch, effort, and nominal CPUE.
• Spatial grids, centres of gravity, distributional indices, and hotspot analysis.
• Comparisons among fishing modes and fleet segments.
• Standardized CPUE using generalized, mixed, additive, and spatio-temporal models.
• Blocked spatial and temporal cross-validation.
• Environmental association and habitat modelling.

Current status

Active thesis and publication programme. One component focuses on the historical and operational characterization of the fishery, while another develops standardized abundance indices and environmental models.

Expected outputs

• Fishery-characterization manuscript.
• Standardized-CPUE manuscript.
• Spatial products and reproducible analytical workflows.
• Methodological guidance for a multispecies and multimodal fishery.

Repository architecture

No public repository is designated here until the canonical analysis or paper repositories are verified. Future repository links will point to the source of truth rather than to copied website content.