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There are xx employees in the Geophysical Services industry in Canada, which is expected to decline at xx% over the next five years. Operators in the Canadian Geophysical Services industry gather, interpret and map geophysical data. They often specialize in locating and measuring the extent of subsurface resources, such as oil, gas and minerals, but may also conduct surveys for engineering purposes. Operators use a variety of surveying techniques depending on the purpose of the survey, including magnetic surveys, gravity surveys, seismic surveys or electrical and electromagnetic surveys.