From top to bottom: HCO⁺(2−1) and HCN(2−1) integrated intensity maps of 30Dor, N159W, and N159E, from left to right, respectively (3-σ detections). The cold dust emission as traced by Herschel PACS 160 μm is overlaid as contours. For each map, we show the corresponding spectrum at peak position (2 km s⁻¹ spectral resolution) and overlay in red the Gaussian fit performed to derive the peak position line characteristics of Table B.1. The bottom x-axis is expressed in velocity with respect to the systemic velocity (v = 0 corresponding to 262.2 km s⁻¹). Candidate YSOs retrieved from different catalogs are overlaid: purple down-tridents from Whitney et al. (2008), blue crosses from Seale et al. (2012), red and salmon plus symbols from Gruendl & Chu (2009), yellow up-tridents from Chen et al. (2009, 2010), and green left-tridents from Carlson et al. (2012).