Climate change is increasing the intensity and frequency of droughts, increasing flow intermittency in rivers, i.e., rivers cease to flow for extended periods of time. Remnant pools, i.e., pools in which water persists during drying in intermittent and ephemeral streams (IRES) may play a crucial role for providing refuge for aquatic organisms as flow diminishes and riffles dry out sustaining biodiversity. Flow intermittency can affect predator-prey relations and stream functioning, such as nutrient dynamics. The objective of this study was to examine the effects of drying and flowing conditions on nutrient dynamics in remnant pools by measuring nutrient concentrations in the water every two weeks from July-October 2024 and fish excretion rates at the beginning and end of the experiment in three remnant pools in an intermittent creek in Central Texas, USA. Excretion rates were measured by incubating three individuals of each fish species for ~60 minutes in filtered stream water and analyzing water samples in the lab for ammonium and phosphate and fish species body nutrient content. We hypothesized that (1) During drying conditions predominance of fish species associated with lentic habitats (e.g., Centrarchidae, Poeciliidae) with low body N:P would result in high N:P excretion rates. (2) Increased temperatures and reduced hydrological transport during drying would lead to a faster excretion rate, increasing P supply in the system and the importance of fish on the lower trophic levels and nutrient cycling. Preliminary results suggest that there was no change in fish community, but fish excretion rates increased in remnant pools during drying increasing the importance of fish on the lower trophic levels and nutrient cycling. This study increases our understanding of the effect of temporal variation and species interactions on ecosystem processes in systems subjected to flow intermittence to inform and improve investments of resources in river management.