Estuaries are productive dynamic systems that sustain a variety of important recreational and commercially fished species. Climate change will result in the physical environment of estuaries changing due to altered rainfall patterns, evaporation rates, and thermal regimes. Physical changes to the environment will affect the biology of all species within estuaries by directly affecting fish physiology, resultant energy budgets, and hence growth. Environmental changes may also indirectly impact estuarine fish through altered food webs, such as via temperature affecting phytoplankton densities that subsequently impact the abundance of first order consumers which become prey for higher order predators. Shifts in prey availability and changes in food web composition will alter predation and competition regimes, and in turn result in an indirect effect on estuarine fish growth. My research tests for the importance of direct (temperature) and indirect (food availability) effects on the growth of juvenile black bream (Acanthopagrus butcheri). Preliminary results show that a key amphipod prey species is directly affected by warming. However, black bream appear resilient in the face of direct temperature changes, and instead their growth primarily responds to food availability. This potentially reflects an indirect response to warming and will be explored further in my presentation.