<ARTICLE> 5 <CIK> 768408 <NAME> Cyanotech Corporation <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> Mar-31-1999 <PERIOD-START> Apr-01-1998 <PERIOD-END> Mar-31-1999 <CASH> 323 <SECURITIES> 0 <RECEIVABLES> 1,024 <ALLOWANCES> 12 <INVENTORY> 2,105 <CURRENT-ASSETS> 3,818 <PP&E> 25,730 <DEPRECIATION> 6,107 <TOTAL-ASSETS> 23,621 <CURRENT-LIABILITIES> 2,901 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 1 <COMMON> 68 <OTHER-SE> 20,638 <TOTAL-LIABILITY-AND-EQUITY> 23,621 <SALES> 6,738 <TOTAL-REVENUES> 6,738 <CGS> 5,765 <TOTAL-COSTS> 5,765 <OTHER-EXPENSES> 3,615 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 174 <INCOME-PRETAX> (2,846) <INCOME-TAX> (289) <INCOME-CONTINUING> 0 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (2,557) <EPS-BASIC> (0.21) <EPS-DILUTED> (0.21)