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Figure 1

From: Airborne dimethyl sulfide (DMS) cues dimethylsulfoniopropionate (DMSP) increases in the intertidal green alga Ulva fenestrata

Figure 1

Location and design of the field experiment on the Shannon Point Beach, Anacortes, Washington, USA (c). The site was located in the town of Anacortes on Fidalgo Island (b) in Washington State (a). The map in c shows the four blocks, each with dimethyl sulfide (DMS), acrylic acid (AA), and control (CTRL) emitters on the Shannon Point Beach. Emitters were placed in the centers of U. fenestrata patches (d) and left for three h during a low tide. Black stars in panel d indicate areas where U. fenestrata were sampled 1 m north (N), east (E), south (S), and west (W) of the location of the emitter 1, 3, 7 and 11 days later. The coast outlines for panels a and b were obtained with the GEODAS Coastline Extractor (https://www.ncei.noaa.gov/products/marine-trackline-geophysical-data).

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