Dredge materials were emptied on deck, rinsed with flow-through seawater, and then quantified by species of sea star and presence or absence of SSWD. Dredge operations comprised a 10-minute dredge following the 30 – 50m contour (determined using depth sounder). Barnes during a 5-day cruise from Seattle to Bellingham, encompassing the range of the early (2013-2014) range of SSWD. Chlorophyll a concentrations as measured by acetone extracted fluorometry.īenthic dredge operations were performed on board the R/V Clifford A. Asteroids were frozen for later determination of viral prevalence and load of the sea star associated densovirus (SSaDV). A survey of SSWD was performed in Salish Sea waters 30 – 50m to determine the presence of Sea Star Wasting Disease (SSWD).
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