The invention relates to a measurement system (1) for aquatic environments, said system comprising a surface vessel (4) and a submersible device (2), the submersible device (2) comprising a hull (29) and propulsion and guiding means (20, 21) and also sensors (25) for taking measurements, wherein the submersible device (2) can either be launched from the vessel (4) in order to then maneuver underwater independently of the vessel during a remote deployment phase, or be stored in the vessel (4) during a non-deployment phase, the vessel (4) comprising at least one hull (42) and propulsion and guiding means (40), said at least one hull (42) of the vessel (4) comprising a submerged portion located below a waterline. According to the invention, the submerged portion of said at least one hull (42) of the vessel (4) comprises a recess (43) designed to receive at least an upper portion of the hull (29) of the submersible device (2) when the latter is stored in the vessel (4), said recess (43) being arranged entirely be
