Developmental and biochemical markers of the impact of pollutant mixtures under the effect of Global Climate Change.

This study investigates the combined impact of microplastics (MP) and Chlorpyriphos (CPF) on sea urchin larvae (Paracentrotus lividus) under the backdrop of ocean warming and acidification. While the individual toxic effects of these pollutants have been previously reported, their combined effects remain poorly understood. Two experiments were conducted using different concentrations of CPF (EC10 and EC50) based on previous studies from our group.

Global climate change increases the impact of pollutant mixtures in the model species Paracentrotus lividus.

The goal of the present work is to study whether ocean- acidification (OA) and -warming (OW) could increase the toxicity of pollutants on P. lividus. We studied how model pollutants such as chlorpyrifos (CPF) and microplastics (MP), alone or in combination, impact the fertilisation process, and the development of larvae under conditions of OA (dissolved inorganic carbon increase of 126 × 10 mol per kg of sea water) and OW (temperature increase of 4 °C) predicted by FAO (Food and Agriculture Organization) for the next 50 years.

The effect of environmental stressors on growth in fish and its endocrine control.

Fish body growth is a trait of major importance for individual survival and reproduction. It has implications in population, ecology, and evolution. Somatic growth is controlled by the GH/IGF endocrine axis and is influenced by nutrition, feeding, and reproductive-regulating hormones as well as abiotic factors such as temperature, oxygen levels, and salinity.