code_name,Volume method units,WOD code 1,IOSD; IOSD 1991 (stored in 5% formalin solution/ measured several months later after initial shrinkage occured) 2,WICKSTEAD (1965); Indonesian Data Reports 3,24 HRS/50; Settle 24hrs in 50 ml grad. cylinder; Indonesian Data Reports 4,CENTRIFUGE; Centrifuge and measure all plankton together; IMARPE data