Acoustic backscatter profile data for Mixed Layer Depth for the Peltic surveys in the eastern Celtic Seas and English Channel from 2012 to 2019

Backscatter data at 200 kHz recorded with a calibrated multifrequency Simrad EK60 system (additional frequencies, 38, 120 and 333 kHz) as part of fisheries survey Peltic designed to map and quantify the pelagic fish community. Peltic is an ongoing annual autumn pelagic survey on the research vessel Cefas Endeavour in the English Channel, Celtic Sea and Bristol Channel running from 2012-present. This data includes October surveys from 2012-2019. Also included are survey strata to show sampling locations.