Baited Remote Underwater Video Stations (BRUVS) are a cost-effective and statistically powerful tool used to survey fish relative abundance in various marine ecosystems. Their use has continued to increase due to the ease and flexibility of the method, with emerging studies on community composition, behaviour, and morphometrics. While previous studies have focused on the temporal reproducibility of BRUVS and method comparisons, very little focus has been placed on the spatial implications and reproducibility of bait plumes and how this impacts the area sampled and therefore population estimates. BRUVS metrics are typically "sightings per unit effort" where effort is time. However, the actual sampled area may be dramatically different between deployments of the same temporal length, as BRUVS are set in variable current and tidal conditions. Therefore, the primary question targeted in this project is: What is the true area sampled? The first stage of the process is to determine how much olfactory stimulant is released from a typical bait bag under different environmental conditions. The data collected from this experiment will be used as one factor in a biophysical model of a bait plume with the proposed outcome of the study being understanding the variability in bait plume size under different conditions. The significance of this study lies in its ability to quantify the potential bias of a method of growing popularity in the field of marine ecology and environmental management, to advise on the interpretation of BRUVS data, and take into consideration oceanography and plume effects when interpreting relative abundance data collected from BRUVS.