Pelagic marine organism data quantified in August 2024 at an offshore mussel farm in Lyme Bay using PelagiCam; non-baited midwater video systems. At each survey site/station three replicate 45 minute deployments were made. Sites/stations based on previous survey experience in the area. Data will be used to help assess the ecological impact of the mussel farm by comparing pelagic species diversity and abundance to nearby control sites with the aim to inform the future management and implementation of aquaculture installations.