00336    a2200133   4500020001500000082001500015100002500030245003700055250001200092260003400104300002300138650002000161700002100181  a0632029838  a577.6bFUN  aBarnes, R.S.K. eed.  aFundermentals of aquatic ecology  a2nd ed.  aOxfordbBlackwellc1980g1991  a[viii],270p.c25cm  aAquatic Ecology  aMann, K.H. eed.