00371nam a2200145Ia 4500003000400000008004100004020002600045040000800071100002000079245004700099250001200146260004200158300001400200365001100214LDD181029s9999    xx            000 0 und d  a9780199297542c895.00  cLDD  aDobson, Michael 0aEcology of aquatic systemscMichael Dobson  a2nd ed.  aOxfordbOxford University Pressc2009  axi, 321p.  b895.00