In Washington State there are over 250 shellfish farms across more than 700 sites, the majority of which are in Puget Sound. A growing interest in maintaining and expanding shellfish aquaculture in Puget Sound, encompassing oysters, clams, and geoducks, could increase interactions with the surrounding ecosystem. These interactions can have positive, negative or neutral effects, on different aspects of the ecosystem. And currently, our understanding of aquaculture-environment interactions is limited, especially interactions with protected species like salmon. In Puget Sound, WA, juvenile Chinook salmon (Oncorhynchus tshawytscha), which is listed as threatened under the Endangered Species Act, depend on the nearshore habitat in Puget Sound and likely interact with shellfish farms, but to what extent and effect is unknown. Potential positive impacts of shellfish farms may include an increase in habitat structure and nutrient removal associated with harvest in eutrophic areas. Negative impacts may include reduced primary production related to nutrient removal at times when forage is limited for juvenile salmonids, reduced light affecting productivity, and disturbance of eelgrass beds and eelgrass-associated invertebrates and fish. Considerations of these interactions at local and seascape scales are also important. In addition, climate change may shift the type, intensity, and outcome of aquaculture-environment interactions. To address knowledge gaps regarding interactions between shellfish aquaculture and the environment, we reviewed literature on shellfish aquaculture and environment interactions. Managers are keenly interested in understanding these interactions and the available approaches to assess them. While there are a variety of tools, models, and calculators developed to examine these interactions, many are region- or species-specific and it can be difficult to evaluate if any given tool can be adapted to a different region. We conducted a literature review to synthesize shellfish aquaculture-environment interactions and tools, models, and calculators used to assess these interactions. This synthesis will inform our plans to incorporate information about shellfish aquaculture-environment interactions into a calculator currently used for assessing the effects of anthropogenic change in nearshore habitats on Chinook salmon.