Ichthyofauna threatened in the marine and estuarine recreational fisheries of São Paulo state

• Grant number: 21/01222-3
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: June 01, 2021
• End date: January 31, 2022
• Field of knowledge: Agronomical Sciences - Fishery Resources and Fishery Engineering - Marine Fishing Resources
• Principal Investigator: Acácio Ribeiro Gomes Tomás
• Grantee: Vinícius Trovo
• Host Institution: Instituto de Pesca. Agência Paulista de Tecnologia dos Agronegócios (APTA). Secretaria de Agricultura e Abastecimento (São Paulo - Estado). São Paulo , SP, Brazil

Abstract

Based on a preliminary study on the catch composition of São Paulo's marine and estuarine recreational fisheries, the current proposal intends to focus on species that are under some category of threat in the national and state lists and that are caught in this fisheries activity, either by angling or spearfishing. In this way, the objective is to know the size structure (and also in weight), in order to relate the length distributions of these species under the view of biological reference points, as the commonly used in regulations (legal minimum size, associated to the length of first maturity) and others of empirical estimation that make it possible to evaluate, if feasible, an optimal size range for capture in order to avoid it, or at least to reduce it, in the juveniles and "mega spawners" fractions. (AU)