Phytoplankton, nutrients, and turbidity in the Chesapeake, Delaware, and Hudson estuaries

New spectrophotometric equations for determining chlorophylls a, b, c1 and c2 in higher plants, algae and natural phytoplankton

S. W. Jeffrey, G. F. Humphrey · Biochemie und Physiologie der Pflanzen · 1975 · 5.1K citations

Biogeochemistry, Engineering, Botany +9

DETERMINATION OF CHLOROPHYLL AND PHEO‐PIGMENTS: SPECTROPHOTOMETRIC EQUATIONS1

Carl J. Lorenzen · Limnology and Oceanography · 1967 · 3.7K citations

Engineering, Botany, Photochemistry +9

On Conditions for the Vernal Blooming of Phytoplankton

Harald Sverdrup · ICES Journal of Marine Science · 1953 · 2.2K citations

Biology, Engineering, Botany +7

Photosynthesis and Fish Production in the Sea

John H. Ryther · Science · 1969 · 1.5K citations

Aquatic Food System, Engineering, Fisheries Science +5

The simultaneous analysis of total nitrogen and total phosphorus in natural waters

Jorge Valderrama · Marine Chemistry · 1981 · 1.4K citations

Total Nitrogen, Biogeochemistry, Total Phosphorus +4