Fig. 4From: Equipment to tag, track and collect biopsies from whales and dolphins: the ARTS, DFHorten and LKDart systemsStandard ARTS (ARTS-S) kit with 2 barrels (840Â mm), one small pressure bottle with a reduction valve and a 2, 5Â m long pressure hose, one aiming sight (Riflescope ZOS), and the ARTS pressure chamber (lower right), a quick shoulder shaft and a quick connector to the pressure tank. Photo by Tom Are Mathisen. Rev2Back to article page