Phosphorus, nitrogen, and the designated uses of Florida lakes

Bachmann, Roger W.; Bigham, Dana L.; Hoyer, Mark V.

doi:10.1080/07438141.2011.650835

Cited by 8 publications

(10 citation statements)

References 41 publications

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“…Most Florida lakes have a multiple use classification for "Recreation, propagation of a healthy, well-balanced population of fish and wildlife" (FDEP 2009). Many people in Florida prefer clear oligotrophic lakes for recreational uses like swimming (Hoyer et al 2004), yet we found that the populations of fish and wildlife were highest in the lakes with the highest concentrations of TP, TN, and Chl-a (Bachmann et al 2012b). No set of plant nutrient criteria would be optimum for all the designated uses in Florida lakes.…”

Section: Designated Usesmentioning

confidence: 78%

“…Previously, Bachmann et al (2012b) found that there were no logical nutrient thresholds for the propagation of fish and wildlife. Throughout the course of biological evolution there have probably always been water bodies with trophic states that range from oligotrophic to hypereutrophic, and aquatic species that make up the biological communities of lakes would have evolved to take advantage of the full range of lake trophic states.…”

Section: Use Biological Conditions To Set Standardsmentioning

confidence: 99%

“…We reviewed published information on the biology of Florida lakes to determine what concentrations of TP and TN might lead to impairment of their designated uses (Bachmann et al 2012b). For the designated use of swimming, lake users preferred oligotrophic to mesotrophic lakes (Hoyer et al 2004).…”

Section: Previous Workmentioning

confidence: 99%

“…In previous work, we have examined the USEPA criteria in light of our research on the factors determining trophic states (Bachmann et al 2012a) and discussed how nutrient criteria might be related to the designated uses (Bachmann et al 2012b) of Florida lakes. The purpose of this study is to examine how other states have set nutrient criteria for their lakes and to propose an alternative process for setting criteria for Florida lakes.…”

mentioning

confidence: 99%

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A strategy for establishing numeric nutrient criteria for Florida lakes

Bachmann

Bigham

Hoyer

2012

Lake and Reservoir Management

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Section: Designated Usesmentioning

confidence: 78%

Section: Use Biological Conditions To Set Standardsmentioning

confidence: 99%

Section: Previous Workmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

A strategy for establishing numeric nutrient criteria for Florida lakes

Bachmann

Bigham

Hoyer

2012

Lake and Reservoir Management

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“…Excessive nutrient loading, in some cases causing imbalances, has altered some of the largest natural hydrosystems in southern Florida. The literature indeed shows that the largest lakes, which are mostly located in north, central, and the northern portion of south Florida (Lake Okeechobee, Lake George, Lake Seminole, Lake Kissimmee, Lake Apopka, Lake Isokpoga, East and West Lake Tohopokaliga, Crescent Lake and Orange Lake) are eutrophic to hypereutrophic [2,3]. Thus, this research reviews the sources and sinks of eutrophic to hypereutrophic [2,3].…”

Section: Introductionmentioning

confidence: 92%

Legacy Phosphorus in Lake Okeechobee (Florida, USA) Sediments: A Review and New Perspective

Missimer

Thomas

Rosen

2020

Water

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Lake Okeechobee is one of the largest freshwater lakes in the United States. As a eutrophic lake, it has frequent algal blooms composed predominantly of the cyanobacterium genus Microcystis. Many of the algal blooms are associated with the resuspension of a thixotropic benthic mud containing legacy nutrients. Since Lake Okeechobee has an area of 1732 km2 (40–50 km radius) and a mean depth of only 2.7 m, there is sufficient fetch and shallow water depth to allow frequent wind, wave, and current generated events, which cause sediment resuspension. Three types of mud exist in the lake including an immobile dark-colored, consolidated mud, a brownish-colored mud, which is poorly consolidated and mobile, and a dark-colored thixotropic, highly mobile mud that is a mixture of organic matter and clay-sized minerals. Altogether, these muds contain an estimated 4.6 × 106 kg of total phosphorus and commensurate high amounts of labile nitrogen. The thixotropic mud covers most of the lakebed and contains the suitable nutrient ratios to trigger algal blooms. A bioassay analysis of the thixotropic mud compared to the consolidated mud showed that it produced up to 50% more nutrient mass compared to the consolidated mud. The thixotropic mud does not consolidate, thus remains mobile. The mobility is maintained by the dynamics of the algal blooms and bacterial decay of extracellular secretions (transparent exopolymer particles) that bind sediment, transfer it to the bottom, and undergo bacterial digestion causing gas emissions, thus maintaining the organic/sediment matrix in suspension. Despite major efforts to control external nutrient loading into the lake, the high frequency of algal blooms will continue until the muds bearing legacy nutrients are removed from the lake.

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Temporal variation in total phosphorus concentrations revealed from a multidecadal monitoring program on Big Platte Lake, Michigan

Brenden

Reilly

Eisch

et al. 2018

Environ Monit Assess

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Effective water quality management depends on enactment of appropriately designed monitoring programs to reveal current and forecasted conditions. Because water quality conditions are influenced by numerous factors, commonly measured attributes such as total phosphorus (TP) can be highly temporally varying. For highly varying processes, monitoring programs should be long-term and periodic quantitative analyses are needed so that temporal trends can be distinguished from stochastic variation, which can yield insights into potential modifications to the program. Using generalized additive mixed modeling, we assessed temporal (yearly and monthly) trends and quantified other sources of variation (daily and subsampling) in TP concentrations from a multidecadal depth-specific monitoring program on Big Platte Lake, Michigan. Yearly TP concentrations decreased from the late 1980s to late 1990s before rebounding through the early 2000s. At depths of 2.29 to 13.72 m, TP concentrations have cycled around stationary points since the early 2000s, while at the surface and depths ≥ 18.29 concentrations have continued declining. Summer and fall peaks in TP concentrations were observed at most depths, with the fall peak at deeper depths occurring 1 month earlier than shallower depths. Daily sampling variation (i.e., variation within a given month and year) was greatest at shallowest and deepest depths. Variation in subsamples collected from depth-specific water samples constituted a small fraction of total variation. Based on model results, cost-saving measures to consider for the monitoring program include reducing subsampling of depth-specific concentrations and reducing the number of sampling depths given observed consistencies across the program period.

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Phosphorus, nitrogen, and the designated uses of Florida lakes

Cited by 8 publications

References 41 publications

A strategy for establishing numeric nutrient criteria for Florida lakes

A strategy for establishing numeric nutrient criteria for Florida lakes

Legacy Phosphorus in Lake Okeechobee (Florida, USA) Sediments: A Review and New Perspective

Temporal variation in total phosphorus concentrations revealed from a multidecadal monitoring program on Big Platte Lake, Michigan

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