Method 446.0 : in vitro determination of chlorophylls a, b, c1 + c2 and pheopigments in marine and freshwater algae by visible spectrophotometry /

Method 440.0 : determination of carbon and nitrogen in sediments and particulates of estuarine/coastal waters using elemental analysis /
by: Zimmermann, Carl F.
Published: (1997)

Method 366.0 : Determination of Dissolved Silicate in Estuarine and Coastal Waters by Gas Segmented Continuous Flow Colorimetric Analysis /
by: Zhang, Jia-Zhong
Published: (1997)

UV-visible spectrophotometry of waters and soils /
Published: (2022)

Method 349.0 : determination of ammonia in estuarine and coastal waters by gas segmented continuous flow colorimetric analysis /
by: Zhang, Jia-Zhong
Published: (1997)

Methods for measuring the acute toxicity of effluents and receiving waters to freshwater and marine organisms.
Published: (2002)

Methods for measuring the acute toxicity of effluents and receiving waters to freshwater and marine organisms.
Published: (2002)

Ammonia and pH toxicity and water quality management for freshwater shrimp /
Published: (1988)

Method 200.12 : determination of trace elements in marine waters by stabilized temperature graphite furnace atomic absorption /
by: Creed, John T.
Published: (1997)

Water-quality assessment of part of the upper Mississippi River basin study unit, Minnesota and Wisconsin : nutrients, chlorophyll a, phytoplankton, and suspended sediment in streams, 1996-98 /
by: Kroening, Sharon E.
Published: (2003)

Method 200.10 : Determination of Trace Elements in Marine Waters by On-line Chelation Preconcentration and Inductively Coupled Plasma-Mass Spectrometry /
by: Long, Stephen E.
Published: (1997)

Method 200.13 : determination of trace elements in marine waters by off-line chelation preconcentration with graphite furnace atomic absorption /
by: Creed, John T.
Published: (1997)

Water-quality assessment of part of the upper Mississippi River basin study unit, Minnesota and Wisconsin : nutrients, chlorophyll a, phytoplankton, and suspended sediment in streams, 1996-98 /
by: Kroening, Sharon E., et al.
Published: (2003)

Water quality criteria for European freshwater fish : report on combined effects on freshwater fish and other aquatic life of mixtures of toxicants in water /
Published: (1980)

Methods for the Determination of Chemical Substances in Marine and Estuarine Environmental Matrices.
Published: (1997)

Freshwater inflows to Texas bays and estuaries : ecological relationships and methods for determination of needs /

Forests to faucets 2.0 : connecting forests, water, and communities /
by: Mack, Erika
Published: (2022)

Global freshwater quality : a first assessment /
Published: (1990)

Biological indicators of freshwater pollution and environmental management /
by: Hellawell, J. M., 1941-
Published: (1986)

Southern Lake Michigan nutrients, temperature, chlorophyll, plankton, and water movement during 1983 and 1984 /
Published: (1987)

Naringssalter og klorofyll -a fra Skagerrak til Vestlandet = Nutrients and chlorophyll-a from Skagerrak to the Norwegian west coast /
by: Aure, Jan
Published: (1997)

Water quality criteria for European freshwater fish : revised report on combined effects on freshwater fish and other aquatic life of mixtures of toxicants in water /
Published: (1987)

Water quality of selected effluent-dependent stream reaches in southern Arizona as indicated by concentrations of periphytic chlorophyll a and aquatic-invertebrate communities /
by: Gebler, J. B. (Joseph B.)
Published: (1998)

Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms.
Published: (1994)

Freshwater biomonitoring and benthic macroinvertebrates /
Published: (1993)

Limitations of single water samples in representing mean water quality : II, spatial and temporal variation in nutrient concentrations in the Okanagan River at Oliver, B.C. /
by: Kleiber, P.
Published: (1978)

Rapid method for determining numbers of sewage pollution bacteria, e.g. coliforms, in water /
by: Malaney, George W.
Published: (1978)

Limitations of single water samples in representing mean water quality : III, Effect of variability in concentration measurements on estimates of nutrient loadings in the Squamish River, B.C. /
by: Kleiber, P.
Published: (1977)

Water quality criteria for European freshwater fish : report on nickel and freshwater fish /
Published: (1984)

The evaluation of methods for creating defensible, repeatable, objective and accurate tolerance values for aquatic taxa /
by: Blocksom, Karen A.
Published: (2006)

Algae in selected Illinois streams, 1971-1976 /
by: Lin, S. D., et al.
Published: (1978)

Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory : processing, taxonomy, and quality control of benthic macroinvertebrate samples /
Published: (2000)

Method 365.5 : Determination of Orthophosphate in Estuarine and Coastal Waters by Automated Colorimetric Analysis /
by: Zimmermann, Carl F.
Published: (1997)

Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory : evaluation of alkaline persulfate digestion as an alternative to Kjeldahl digestion for determination of total and dissolved nitrogen and phosphorus in water /
by: Patton, Charles J.
Published: (2003)

Water quality criteria for freshwater fish /
Published: (1980)

The water crisis : constructing solutions to freshwater pollution /
by: Stauffer, Julie
Published: (1999)

Biology of freshwater pollution /
by: Mason, C. F.
Published: (1991)