Responses of Mytilus edulis Larvæ to Increases in Hydrostatic Pressure

Abstract

Knight-Jones and Qasim¹ have reported that a number of marine planktonic animals are sensitive to small changes in hydrostatic pressure. These animals included crustacean and polychæte larvæ, which tended to become more active and swim upwards when submitted to increased pressures. The value of such a response to a planktonic organism of high specific gravity must be very great.