The U.S. Fish and Wildlife Service, part of the Department of the Interior, has issued a special notice of intent to award a sole source contract for a specific sound velocity profiling probe necessary for projects in Lake Michigan. The required equipment must integrate dissolved oxygen measurement with temperature, sound velocity, and pressure sensors, which are critical for ongoing research efforts in the area. Market research has determined that AML Oceanographic, Ltd. is the only vendor capable of providing the necessary equipment that ensures compatibility with existing data analysis software and measurement comparability, based on past successful use of their products. For further inquiries, interested parties can contact Carter Duke at carter_duke@fws.gov.