Correction

This article refers to:

Stability of Lake Sammamish phosphorus despite land use changes

Article title: Stability of Lake Sammamish phosphorus despite land use changes

Authors: Welch, E., Bouchard, D., Frodge, J., Jacoby, J.

Journal: Lake and Reservoir Management

Citation details: Volume 35, Number 2, pages 167–180

DOI: http://dx.doi.org/10.1080/10402381.2019.1606868

p. 167: The correct sentence is: “Reasons for the stability of annual mean TP through the 1980s were (1) hypolimnetic TP had declined by nearly 50% since the 1970s, due to 62% less internal loading; (2) water residence time increased slightly since the 1970s, allowing more settling of particulate matter; and (3) hypolimnetic TP content at turnover did not persist.”

p. 171: The sentence, “From 1994 to 2004, samples for Chl-a were collected from a depth of 1m.”, should have been omitted.

p. 173: The correct sentence is: “The long-term decrease was due to a gradual decline in sediment-P release rate: 76% since before diversion and 62% since the 1970s after diversion (Table 2).”

p. 176: The correct sentence is: “Nearly two-thirds of the long-term stability in annual whole-lake TP can be explained by reduced hypolimnetic TP as the sediment-P release rate gradually declined (62%) since the 1970s following wastewater diversion.”

p. 177: The correct sentence is: “Nevertheless, mean TP in the 6 minor streams draining the east- and west-side basins was much higher at 79 μg/L (± 46 SD), probably reflecting a greater fraction (72% versus 41%) of developed area.”

p. 177: The correct sentence is: “The effect of watershed development on alkalinity was also observed in Lake Washington, where alkalinity increased from 27 mg/L in 1956 to 40 mg/L in the early 1990s (Edmondson 1994).”

p. 178: The correct sentence is: “Lake TP did not increase in response to further increased urban development as projected, partly because as-built development by 2011 was less (22%) and forest retention greater (60%) than projected from 1992 zoning to buildout.”