Physical and hydrochemical evidence of lake leakage near Jim Woodruff Lock and Dam and of ground-water inflow to Lake Seminole, and an assessment of karst features in and near the lake, southwestern Georgia and northwestern Florida

Torak, Lynn J.; Crilley, Dianna M.; Painter, Jaime A.

doi:10.3133/sir20055084

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…The Apalachicola River has the largest discharge of all the rivers in Florida, accounting for roughly one-third of freshwater runoff on the west coast of Florida [223]. The Apalachicola River begins at The Jim Woodruff Lock and Dam, flows towards the south, and eventually discharges to the shallow estuarine Apalachicola Bay, where it is the primary source of freshwater [224,225]. The Apalachicola River has a wide floodplain and is subject to variable seasonal flow [77,226].…”

Section: Climate-change Influences On Runoff and Sediment Loads To Ap...mentioning

confidence: 99%

The Effects of Climate Variability on Florida’s Major Water Resources

Haque

2023

Sustainability

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Emerging changes in water availability in the U.S. state of Florida have been recognized as a combined result of human perturbations, natural variability, and climate change. Florida is particularly susceptible to the impacts of the sea level rise due to its extensive coastline, low elevation, and lack of topographic relief to promote drainage. Owing to the porous nature of the state’s aquifer systems, saltwater intrusion into coastal areas is an evolving threat. Additionally, anthropogenic intervention has increased the contribution of nutrients and sediments to many lakes, reservoirs, and rivers, subsequently causing eutrophication and sedimentation problems. The state is facing the challenges of ocean acidification head-on since, in many regions, groundwater aquifers are connected to coastal waters, where water circulates from land to sea through the underlying porous limestone. Additionally, as Earth’s atmosphere warms up, extreme weather events are expected to change the environmental fate of contaminants in the aquatic environment, and this, in turn, may impact the type and distribution of contaminants in source waters. This review paper highlights five major emerging themes that are of significance for sustainable long-term management of Florida’s water resources: (i) influences of changing climate on groundwater aquifers; (ii) implications of climate change on eutrophication; (iii) impacts of changing climate on the Everglades; (iv) climate-change influence on runoff and sediment loads; and (v) influence of ocean acidification on coastal water. The findings of this review indicate that, in the future, the changing global climate will likely alter numerous environmental conditions in Florida, and the resulting changes may impact the natural properties of the state’s fresh and coastal waters. The findings are expected to mobilize knowledge in support of the changing climate to assist Floridians to adapt to its effects.

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Section: Climate-change Influences On Runoff and Sediment Loads To Ap...mentioning

confidence: 99%

The Effects of Climate Variability on Florida’s Major Water Resources

Haque

2023

Sustainability

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“…An alternative approach is to use oxygen and hydrogen isotopes because lake water is generally isotopically heavier than groundwater due to evaporation (Krabbenhoft et al 1990). It has been demonstrated that the isotopes are highly effective for identifying a hydraulic connection between sinkhole lakes and karst springs (Criss et al 2001; Torak et al 2006; Day and Poeter 2009; Leng et al 2010) and between sinking streams and karst springs (Greene 1997; Frisbee et al 2019; Rusjan et al 2019). While isotope approaches are less quantitative than dye tracing approaches (especially on the aspects of estimating hydrogeological parameters of solute transport), isotope approaches have an advantage that isotope ratios can be measured from water samples collected over a long period of time, for example, months and potentially years.…”

Section: Introductionmentioning

confidence: 99%

Using δ¹⁸O and δ²H to Detect Hydraulic Connection Between a Sinkhole Lake and a First‐Magnitude Spring

Ahmed

Wang

et al. 2021

Groundwater

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Oxygen and hydrogen isotopes were used in this study to detect a hydraulic connection between a sinkhole lake and a karst spring. In karst areas, surface water that flows to a lake can drain through sinkholes in the lakebed to the underlying aquifer, and then flows in karst conduits and through aquifer matrix. At the study site located in northwest Florida, USA, Lake Miccosukee immediately drains into two sinkholes. Results from a dye tracing experiment indicate that lake water discharges at Natural Bridge Spring, a first‐magnitude spring 32 km downgradient from the lake. By collecting weekly water samples from the lake, the spring, and a groundwater well 10 m away from the lake during the dry period between October 2019 and January 2020, it was found that, when rainfall effects on isotopic signature in spring water are removed, increased isotope ratios of spring water can be explained by mixing of heavy‐isotope‐enriched lake water into groundwater, indicating hydraulic connection between the lake and the spring. Such a detection of hydraulic connection at the scale of tens of kilometers and for a first‐magnitude spring has not been previously reported in the literature. Based on the isotope ratio data, it was estimated that, during the study period, about 8.5% the spring discharge was the lake water that drained into the lake sinkholes.

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“…These tributaries drain a combined land area of 46 141 km 2 . Groundwater also contributes a substantial component of flow into the lake (Torak et al 2006). Concentrations of nutrients within the lake were measured monthly over a 12 mo period during a study by McEntire (2009).…”

Section: Site Descriptionmentioning

confidence: 99%

Microbial bioavailability of dissolved organic carbon from leachates of freshwater autotrophs

Shivers¹,

Opsahl²,

Covich³

2016

Aquat. Microb. Ecol.

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The concentration and bioavailability of dissolved organic carbon (DOC) released during senescence of aquatic vegetation varies among autotrophs, and the corresponding response by microbial communities depends on DOC bioavailability. To evaluate microbial response to different leachate sources, experiments that measured O 2 consumption, utilization of DOC and monosaccharides, and the specific absorbance of light at 350 nm (SUVA350) were conducted on leachates from 3 primary producers. Specific absorbance at 350 nm (SUVA350) increased in 2 of 3 experiments. Increases in SUVA350 are consistent with the preferential use of labile DOC with a lower SUVA350. However, similar patterns of monosaccharide and DOC utilization do not support the hypothesis of preferential usage of labile carbohydrates over bulk DOC by the microbial community over the 8 d study. Monosaccharides appear to represent only a portion of a larger pool of labile DOC constituents that are found in autotrophic leachates that can be taken up more rapidly than metabolized by microbial communities. O 2 consumption by the microbial community varied significantly among leachate types but was relatively high during the early phase of the experiments in all leachates. Similarly, DOC uptake was relatively rapid during the early phase of the experiments. The microbial uptake of DOC relative to the consumption of dissolved oxygen, expressed as a ratio, ranged from 2.31 to 3.95 during the initial 24 h period but approached 1:1 over the duration of the experiment. These ratios suggest that 'luxury uptake' of DOC by microbial communities might have occurred in the initial phase of the experiment.

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Physical and hydrochemical evidence of lake leakage near Jim Woodruff Lock and Dam and of ground-water inflow to Lake Seminole, and an assessment of karst features in and near the lake, southwestern Georgia and northwestern Florida

Cited by 5 publications

References 10 publications

The Effects of Climate Variability on Florida’s Major Water Resources

The Effects of Climate Variability on Florida’s Major Water Resources

Using δ¹⁸O and δ²H to Detect Hydraulic Connection Between a Sinkhole Lake and a First‐Magnitude Spring

Microbial bioavailability of dissolved organic carbon from leachates of freshwater autotrophs

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Physical and hydrochemical evidence of lake leakage near Jim Woodruff Lock and Dam and of ground-water inflow to Lake Seminole, and an assessment of karst features in and near the lake, southwestern Georgia and northwestern Florida

Cited by 5 publications

References 10 publications

The Effects of Climate Variability on Florida’s Major Water Resources

The Effects of Climate Variability on Florida’s Major Water Resources

Using δ18O and δ2H to Detect Hydraulic Connection Between a Sinkhole Lake and a First‐Magnitude Spring

Microbial bioavailability of dissolved organic carbon from leachates of freshwater autotrophs

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Using δ¹⁸O and δ²H to Detect Hydraulic Connection Between a Sinkhole Lake and a First‐Magnitude Spring