We had fun helping our friends from MARES at IMEDEA on their quest to better understand the dynamics of fish spawning. The data available are sea surface temperature, fishery-dependent sampling and the gonadosomatic index of the captured fish. The result, published in Marine Environmental Research, is an experimentally validated model that allows one to predict the timing of spawning peak in a population of wild fish and its dependence on temperature variations. It’s cool to think that this could help improve the management of fisheries and make it more sustainable. Thanks to our friends Vincenç, Miquel, Andrés and Ignacio for involving us in the project!