Handbook of Common Methods in Limnology

absorbance acid alidade aliquot analysis Apparatus approximately aquatic aufwuchs base line benthos biomass bottom bucket buffer solution calcium calculated calibrated carbon dioxide cell chemical chlorophyll collection color concentration counting coverslip cubic meters dark bottle demineralized water determined diatoms dilute disk dissolved distilled water dredge EDTA flask formalin glass glassware gram hypolimnion laboratory lake water light limnologist limnology liter magnesium measure membrane filter method mg CaCO3 mg/L microscope slide ml distilled water ml of sample ml sample natural waters nitrogen number of organisms oxygen phenolphthalein phosphorus photosynthesis phytoplankton pipette plane table plankton plants plot pond potassium Procedure production reagent rinse sampler Secchi disk sedimentation shoreline silica sodium sodium thiosulfate specific conductance Spectronic 20 square meters stake standard curve standard solution stopper stream substrate surface techniques temperature tion titration total alkalinity trap turbidity usually volume Wash water sample wavelength weight