"Oceanographic survey operations were conducted off Keahole Point during Leg I, at Finch Seamount during Leg II, and at Cross Seamount and at a control site for Cross Seamount during Leg III.... All survey operations consisted of 1000 m CTD casts as well as 'deep' (~500 m) and 'shallow' (~120 m) Cobb trawls along ADCP and EK60 transect lines. In addition, self noise testing of the EK60 echosounder's 38kHz and 120kHz transducers was conducted off the Kona Coast of the Island of Hawaii during Leg I..., and a passive acoustic instrument was deployed at Cross Seamount during Leg III. Further, the Simrad EK60 echosounder's transducers were calibrated in Kealakekua Bay during Leg II"--Type of operation.

National Marine Fisheries Service (NMFS)