Abstract: A hydrophone carrier for mounting a hydrophone in a streamer. The carrier consists of a pair of end plates spaced apart axially by at least one rigid or semi-rigid central member, thus defining a zone between the end plates which is isolated from structural stress and strain induced by streamer borne vibration, yet admitting externally induced pressure fluctuations such as result from acoustic waves present in the environment. The at least one rigid or semi-rigid central member may be arranged in a variety of configurations to allow the at least one streamer strength members and wires to pass through the carrier.