Nutrients, seston, and transparency of Missouri reservoirs and oxbow lakes: An analysis of regional limnology

Jones, John R.; Obrecht, Daniel V.; Perkins, Bruce D.; Knowlton, Matthew F.; Thorpe, Anthony P.; Watanabe, Shohei; Bacon, Robert

doi:10.1080/07438140809354058

Cited by 73 publications

(114 citation statements)

References 60 publications

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“…Another factor contributing to stratification is that most Missouri reservoirs have limited water clarity; median Secchi depth is <1 m (Jones et al 2008). Among Canadian lakes <500 ha, Fee et al (1996) found mixed depth strongly related to water clarity; adjusted for surface area, mixed depth increased by ∼4 m between the least and most transparent lakes.…”

Section: Discussionmentioning

confidence: 99%

“…The Canadian model shows that the difference in light transmission between 21 and 55%/m would result in a 2 m difference in mixing depth. Nonalgal seston, chiefly clay minerals, accounts for much of this difference (Jones et al 2008, Jones andHubbart 2011) and likely contributes to shallow mixing in Missouri water bodies relative to their surface area.…”

Section: Discussionmentioning

confidence: 99%

“…Most Missouri reservoirs are mesotrophic or eutrophic (80%; Jones et al 2008) with sharp clinograde oxygen distribution during much of summer stratification. Noteworthy in these survey data, DO saturation of <50% is common in May (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Vertical profiles of water temperature (n = 7193) and dissolved oxygen (n = 6516) were collected from 226 Missouri reservoirs and 9 oxbow lakes during 1989-2007 as part of a statewide monitoring effort (location map given in Jones et al 2008). For parsimony, we refer to these lentic systems as reservoirs while recognizing that few oxbows are impoundments.…”

Section: Datasets and Analysesmentioning

confidence: 99%

“…In this paper we summarize patterns in archived water temperature and DO profiles from a long-term summer inventory of Missouri reservoirs, along with available annual measurements, to document processes and baseline conditions (Jones et al 2008). …”

mentioning

confidence: 99%

See 4 more Smart Citations

Temperature and oxygen in Missouri reservoirs

Jones

Knowlton

Obrecht

et al. 2011

Lake and Reservoir Management

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Datasets and Analysesmentioning

confidence: 99%

mentioning

confidence: 99%

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Temperature and oxygen in Missouri reservoirs

Jones

Knowlton

Obrecht

et al. 2011

Lake and Reservoir Management

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Abiotic control of underwater light in a drinking water reservoir: Photon budget analysis and implications for water quality monitoring

Watanabe

Laurion

Markager

et al. 2015

Water Resources Research

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In optically complex inland waters, the underwater attenuation of photosynthetically active radiation (PAR) is controlled by a variable combination of absorption and scattering components of the lake or river water. Here we applied a photon budget approach to identify the main optical components affecting PAR attenuation in Lake St. Charles, a drinking water reservoir for Quebec City, Canada. This analysis showed the dominant role of colored dissolved organic matter (CDOM) absorption (average of 44% of total absorption during the sampling period), but with large changes over depth in the absolute and relative contribution of the individual absorption components (water, nonalgal particulates, phytoplankton and CDOM) to PAR attenuation. This pronounced vertical variation occurred because of the large spectral changes in the light field with depth, and it strongly affected the average in situ diffuse absorption coefficients in the water column. For example, the diffuse absorption coefficient for pure-water in the ambient light field was 10-fold higher than the value previously measured in the blue open ocean and erroneously applied to lakes and coastal waters. Photon absorption budget calculations for a range of limnological conditions confirmed that phytoplankton had little direct influence on underwater light, even at chlorophyll a values above those observed during harmful algal blooms in the lake. These results imply that traditional measures of water quality such as Secchi depth and radiometric transparency do not provide a meaningful estimate of the biological state of the water column in CDOM-colored lakes and reservoirs.

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Rethinking phosphorus–chlorophyll relationships in lakes

Yuan

Jones

2020

Limnology & Oceanography

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The empirical relationship between total phosphorus and chlorophyll has guided lake management decisions for decades, but imprecision in this relationship in individual lakes limits the utility of these models. Many environmental factors that potentially affect the total phosphorus-chlorophyll relationship have been studied, but here we hypothesize that imprecision can be reduced by considering differences in the proportions of phosphorus bound to three different "compartments" in the water column: phosphorus bound in phytoplankton, phosphorus bound to suspended sediment that is not associated with phytoplankton, and dissolved phosphorus. We specify a hierarchical Bayesian network model that estimates phosphorus associated with each compartment using field measurements of chlorophyll, total suspended solids, and total phosphorus collected from reservoirs in Missouri, United States. We then demonstrate that accounting for these different compartments yields accurate predictions of total phosphorus in individual lakes. Results from this model also yield insights into the mechanisms by which lake morphometric and watershed characteristics affect observed relationships between total phosphorus and chlorophyll.

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Nutrients, seston, and transparency of Missouri reservoirs and oxbow lakes: An analysis of regional limnology

Cited by 73 publications

References 60 publications

Temperature and oxygen in Missouri reservoirs

Temperature and oxygen in Missouri reservoirs

Abiotic control of underwater light in a drinking water reservoir: Photon budget analysis and implications for water quality monitoring

Rethinking phosphorus–chlorophyll relationships in lakes

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