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Updated: Jun 6, 2025

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools
Published on: November 20, 2017
Commercial fisheries as non-designed experiments
Miguel Petrere1, Davi Butturi-Gomes1,2
1Universidade Santa Cecilia (UNISANTA), Programa de Pós-Graduação em Sustentabilidade de Ecossistemas Costeiros e Marinhos, Rua Oswaldo Cruz, 277, Boqueirão, 11045-907 Santos, SP, Brazil.
Abstract:
Commercial fisheries data often lacks the controlled environment of traditional experiments. In this note, we explore the limitations and strengths of observational and quasi-experimental approaches in fisheries science, discussing the challenges of establishing causality, space-time pseudo-replication, and the impact of fishing-induced evolution.
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