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The views and opinions expressed or implied in this article are those of the author (or authors) and do not necessarily reflect the position of the National Marine Fisheries Service, NOAA. Abstract—Fish and macro-invertebrate assemblages were examined in the vicinity of 5 wind energy areas on the northeast U.S. continental shelf by using 2 sampling gears. Collections of fish and macroinvertebrates during the spring of 2014 with a 2-m beam trawl and a standard bottom trawl were compared. Correspondence analysis of proportions of taxa in the catch at sampling stations and estimated individual weights, averaged by taxon, were used to describe the composition of assemblages, and composition of the catch was compared between collections made with the 2 different gears and among different wind energy areas. These comparisons indicated that the 2 gears collected different fish and macro-invertebrate communities. Analysis of the collections by gear type indicated that assemblages varied across several spatial scales. Canonical correspondence analysis was used to examine the relationship between assemblages, sampling programs, and environmental variables to determine which variables and Correspondence analysis dimensions were aligned with stations and were related to the assemblages. Environmental variables explained 20.5% of the variation for the beam trawl stations and assemblages and 28.8% of variation for the bottom trawl stations and assemblages. Our results indicate that assessments of wind energy areas on the northeast U.S. shelf should be conducted by using multiple gear types across multiple spatial and temporal scales. Offshore wind farms have been gaining increased interest as a potential source of renewable energy (Wilson et al., 2010; Tabassum-Abbasi et al., 2014). The Bureau of Ocean Energy Management (BOEM) has designated 8 wind energy areas (WEAs) on the northeast U.S. continental shelf between North Carolina and Massachusetts (Bailey et al., 2014). These wind energy areas comprise lease blocks that will be made available for commercial leases and limited research leases (BOEM1). Commercial leases allow the leaseholder to ask BOEM for the right to develop wind energy production facilities on the leasehold and undertake a 4-step process of planning and analysis, lease issuance, site assessment, and construction and operations. Limited research leases allow the leaseholder to conduct technological testing and gather data for 5 years. Assessing the environmental impact of offshore

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Spring occurrence of fish and macro-invertebrate assemblages near designated wind energy areas on the northeast U.S. continental shelf: Supplemental table