Flushing rates and hydrodynamical characteristics of Mosquito Lagoon (Florida, USA)

Rosario-Llantín, Jo-Ann; Zarillo, Gary A.

doi:10.1007/s11356-021-12367-1

Cited by 7 publications

(8 citation statements)

References 12 publications

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“…Salinity <20 persisted from <1 to 4 months at the 10 stations (Figure 6A). Subsequent increases in salinity over time varied considerably, consistent with flushing times (R 50 = 50% renewal time) that ranged from as low as ∼10 days in parts of Central IRL to as high as ∼100 days in the North IRL and >150 days in BRL (Steward et al, 2005;Rosario-Llantin and Zarillo, 2021). For example, salinity increased to ∼24 in less than 1 month and to 36 by April 2018 at station 28, near Sebastian Inlet that connects IRL to the Atlantic Ocean (Figure 6A).…”

Section: Consequences Of Stormwater Runoff To the Indian River Lagoonmentioning

confidence: 60%

“…Stormwater inputs of freshwater and nutrients can be trapped behind the barrier islands of the IRL for weeks to months (Steward et al, 2005;Rosario-Llantin and Zarillo, 2021), thereby promoting intense HABs, including an Aureoumbra lagunensis bloom in 2017-2018 (Galimany et al, 2020;Judice et al, 2020). Lapointe et al (2020) highlighted the importance of land-based nutrients as a driving force for eutrophication and HABs in the IRL, especially noting a significant negative correlation between DIN and salinity.…”

Section: Consequences Of Stormwater Runoff To the Indian River Lagoonmentioning

confidence: 99%

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Extreme Runoff of Chemical Species of Nitrogen and Phosphorus Threatens a Florida Barrier Island Lagoon

Trefry

Fox

2021

Front. Mar. Sci.

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Extreme runoff of stormwater to poorly flushed barrier island lagoons often adds excess nitrogen (N) and phosphorus (P) that can promote subsequent, sometimes intense, harmful algal blooms (HABs). Successful management of such estuaries requires special appreciation of when and how to control concentrations and fluxes of chemical species of N and P during high flow. Toward that end, monthly surveys and episodic rain-event sampling were carried out from December 2015 to March 2018 for two contrasting tributaries of the Indian River Lagoon (IRL), a barrier island lagoon in Florida. One tributary, South Prong Saint Sebastian River, flows through predominantly agricultural, forested and open land, whereas the second tributary, Crane Creek, traverses mainly residential-commercial land. Concentrations of some N and P species in these tributaries increased with increased flow and could be described with statistically significant equations for concentration versus flow rate, thereby supporting flow-rate-dependent flux determinations. Drainage basin yields (fluxes per square km) varied with land cover/use. Calculated annual yields of dissolved organic N (DON) and dissolved inorganic P (DIP) averaged ∼70% greater for South Prong Saint Sebastian River from high flow through thicker, more organic- and P-rich soils. In contrast, yields of nitrate + nitrite were 100% higher for Crane Creek from widespread application of N-fertilizer to thin layers of turfgrass overlying sand, plus runoff of N-rich reclaimed water. Two major weather events highlighted our study and foreshadow impacts from climate change. Seven months of drought from November 2016 to May 2017 were followed in September-October 2017 by excess rain, runoff and flooding from Hurricane Irma. Consequently, >50% of freshwater fluxes and ∼60% of N and P fluxes from South Prong Saint Sebastian River, Crane Creek and other IRL tributaries occurred during 2 months in 2017. Lagoon-wide inputs provided enough bioavailable N and P to help support a nanoeukaryotic bloom for >5 months, with chlorophyll a values >50 μg L–1. The bloom was co-dominated by the brown tide alga, Aureoumbra lagunensis, and an unidentified nanoeukaryotic green alga. Decreased salinity, low concentrations of dissolved inorganic N and P, and decreasing dissolved organic P (DOP), combined with biological factors, diminished the IRL bloom by mid-2018.

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Section: Consequences Of Stormwater Runoff To the Indian River Lagoonmentioning

confidence: 60%

Section: Consequences Of Stormwater Runoff To the Indian River Lagoonmentioning

confidence: 99%

Extreme Runoff of Chemical Species of Nitrogen and Phosphorus Threatens a Florida Barrier Island Lagoon

Trefry

Fox

2021

Front. Mar. Sci.

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“…In the northern IRL, there was no tributary or inlet influence detected on MP abundance in water or oysters. There are no tributaries and the north IRL is considered microtidal with water residence times (50% renewal time) within the region varying greatly with distance from inlet; for example, residence time for the northernmost and southernmost portions of Mosquito Lagoon (north IRL) are 15 days and 172 days, respectively [30]. Within the northern IRL, MP abundance in water did not differ between sites; however, abundance was different in oysters from different reefs.…”

Section: Discussionmentioning

confidence: 99%

“…All northern sampling reefs were located within 20 km of Ponce de Leon Inlet and within 5 km of each other so spatial influences on MP abundances in C. virginica were hard to distinguish. All reefs were located in the central Mosquito Lagoon region, where water residence time is low (~15 days; [30]). Likewise, abiotic conditions between sampled reefs in the north IRL did not differ.…”

Section: Discussionmentioning

confidence: 99%

“…Our focal area is Florida's largest lagoon, the Indian River Lagoon (IRL), which spans 40% of Florida's east coast from Ponce de Leon Inlet in the north (29.075898 • N, 80.917571 • W) to Jupiter Inlet in the south (26.944768 • N, 80.073952 • W). The IRL is a bar-built lagoon that has limited water exchange through five inlets and is hydrologically complex [29][30][31]. Four of the five inlets within the lagoon, Ponce de Leon, Sebastian, Ft Pierce, and St Lucie, were included within the defined boundaries of this study.…”

Section: Methodology 21 Study Locationmentioning

confidence: 99%

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Quantifying Spatial and Temporal Trends of Microplastic Pollution in Surface Water and in the Eastern Oyster Crassostrea virginica for a Dynamic Florida Estuary

et al. 2022

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Microplastics (MPs) are a ubiquitous pollutant, emphasizing the need to understand their abundance and the factors that influence these patterns around the globe. In a prior study, high numbers of MPs were found in surface waters and tissues of the oyster Crassostrea virginica collected from one location in the Indian River Lagoon (IRL, FL, USA). To better understand spatial and temporal variability of MPs throughout the IRL, for one year, monthly surface water samples were collected from 35 sites, while oysters were collected quarterly from 12 sites. Microscopy and ATR-FTIR were used to quantify MP. In total, 3755 MPs were found in 44% of water samples (mean density ± CI: 1.47 ± 0.09 MP/L). South IRL water had the most MPs, likely associated with proximity to urbanization, inlets (MP sinks) and tributaries (MP sources). MP (n = 3181) were found in 70% of examined C. virginica (n = 1402). Abundances of MP in oysters were lower in the spring and in north IRL. The overall mean abundance was 2.26 ± 0.16 MP/oyster, and the density was 2.43 ± 0.52 MP/g wet tissue weight. Our results provide a more complete picture of MPs in the IRL, a subtropical, shallow-water estuarine system.

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Impacts of climate change on estuarine stratification and implications for hypoxia within a shallow subtropical system

Duvall¹,

Jarvis²,

Wan³

2022

Estuarine, Coastal and Shelf Science

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Flushing rates and hydrodynamical characteristics of Mosquito Lagoon (Florida, USA)

Cited by 7 publications

References 12 publications

Extreme Runoff of Chemical Species of Nitrogen and Phosphorus Threatens a Florida Barrier Island Lagoon

Extreme Runoff of Chemical Species of Nitrogen and Phosphorus Threatens a Florida Barrier Island Lagoon

Quantifying Spatial and Temporal Trends of Microplastic Pollution in Surface Water and in the Eastern Oyster Crassostrea virginica for a Dynamic Florida Estuary

Impacts of climate change on estuarine stratification and implications for hypoxia within a shallow subtropical system

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