RV Platessa tagged plaice were released off the Cumberland coast, using the RV "Platessa" during 1949 and 1950. In August 1951 echo-sounder traces were obtained over a wide area off Whitby by the RV 'Platessa', using a Marconi sounder. They were found to occur at a depth corresponding to that of a sharp thermocline, and small whiting about 3 in. in length, large Medusae, herring and sandeel larvæ were caught with a pelagic trawl at the depth of the trace. This work was reported in a ‘letter’ to the journal Nature in 1952. In 1950 the RV "Platessa" was involved in comparative
Upper West Side increasingly referred to as Lincoln Square by realtors who acknowledge a different tone and ambiance than that typically associated with the Upper West Side. This is a reversion to the neighborhood's historical name. The long high bluff above useful sandy coves along the North River was little used or traversed by the Lenape people. A combination of the stream valleys, such as that in which 96th Street runs, and wetlands to the northeast and east, may have protected a portion of the Upper West Side from the Lenape's controlled burns; lack of periodic ground fires results in a denser understory