Oxygen Consumption (OC) and Standard Metabolic Rate (SMR) after the exposure of Limnoperna fortunei, Daphnia similis and Ceriodaphnia dubia to coated fish farming nets

• Grant number: 25/02052-5
• Support Opportunities: Research Grants - Visiting Researcher Grant - International
• Start date: May 06, 2025
• End date: June 20, 2025
• Field of knowledge: Engineering - Sanitary Engineering - Water Resources
• Principal Investigator: Daercy Maria Monteiro de Rezende Ayroza
• Grantee: Daercy Maria Monteiro de Rezende Ayroza
• Visiting researcher: Esteban Marcelo Paolucci
• Visiting researcher institution: Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
• Host Institution: Instituto Agronômico (IAC). Agência Paulista de Tecnologia dos Agronegócios (APTA). Secretaria de Agricultura e Abastecimento (São Paulo - Estado). Campinas , SP, Brazil

Abstract

The study of sub-lethal effects of antifouling products on the metabolism of invasive and non-target species is crucial to optimize treatment effectiveness in biofouling control while minimizing environmental impacts. This study aims to experimentally assess the adverse effects of coated fish farming nets on the metabolism of the golden mussel (Limnoperna fortunei) and microcrustaceans, using the Standard Metabolic Rate (SMR) as a sub-lethal endpoint. We will evaluate and compare the physiological tolerance and mortality of both the invasive target species (L. fortunei) and the non-target microcrustacean species (Daphnia similis and Ceriodaphnia dubia). These organisms will be exposed to three different types of nets, with oxygen consumption rate used as a proxy for SMR. We will test whether antifouling treatments increase mortality and negatively impact mussel metabolism in comparison with uncoated nets, thereby assessing its potential for biofouling control while also investigating possible adverse effects on other organisms. (AU)