TY - JOUR A1 - Keith, S C A1 - Arnosti, C T1 - Extracellular enzyme activity in a river-bay-shelf transect: variations in polysaccharide hydrolysis rates with substrate and size class. Y1 - 2001// N1 - R825159 JF - AQUATIC MICROBIAL ECOLOGY J1 - AQUAT MICROB ECOL VL - 24 IS - 3 SP - 243 EP - 253 ER -