Measurements of global sea waters are indicating that there has been a 0.6°C rise in temperature over the past decade. The impact is becoming obvious in coastal areas at some locations along the Queensland coast where evidence of coral bleaching has occurred and further south where studies are showing the migration of marine species southward to remain in the cooler temperatures. Any minor water temperature elevation which may result in variations and impacts on the biota and ecosystems of the Port Curtis region could impact the ability to make future amendments to the current water quality discharge limits. The purpose of study is to examine the effects of longer/ extended periods of above average elevated water temperature on the chemistry of the water and sediments of Port Curtis, with a focus on the impacts of temperature on chemistry (marine chemistry honours), or the impact on marine structures (engineering honours).