ROV- video records
An ROV was driven along transects at a mean speed of 0.5 m/s. Video was captured using a broadcast quality, Sony DXC-3000, fitted with a Fujinon 5.5-48mm zoom lense. Temperature, salinity, depth, and oxygen were measured with a SeaBird SBE-9, mounted on the ROV. (Robison et al 1998)
Robison, B.H., K.R. Reisenbichler, R.E. Sherlock, J.M.B. Silguero, and F.P. Chavez, Seasonal abundance of the siphonophore, Nanomia bijuga, in Monterey Bay. Deep-Sea Research II, 1998. 45: p. 1741–1752.