Application of the OECD Eutrophication Modeling Approach to Estuaries

Lee, G. Fred; Jones, R. Anne

doi:10.1007/978-1-4612-5826-1_28

Cited by 17 publications

(12 citation statements)

References 4 publications

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“…7) between P loading (incorporating water renewal) and chlorophyll concentration (e.g. Vollenweider 19 6 8, 19 7 6; Dillon and Rigler 1974;Lee et al 1978). rqutrient dejkiency indicators -In the EL,4, a suite of nutrient status indicators was consistent with the whole-lake and mesocosm experiments, which indicated that the lakes were P limited (Healey and Hendzel 1980). The degree of P limitation, as me,asured by several indicators, was a function of the N : P loading ratio ( Fig.…”

Section: Freshwater-the Experimental Lakes Areamentioning

confidence: 89%

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Nutrient limitation of phytoplankton in freshwater and marine environments: A review of recent evidence on the effects of enrichment1

Hecky

Kilham

1988

Limnology & Oceanography

517

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Phytoplanktoncan become limited by the availability of nutrients when light and temperature are adequate and loss rates are not excessive. The current paradigms for nutrient limitations in freshwater, estuarine, and marine environments are quite different. A review of the experimental and observational data used to infer P or N limitation of phytoplankton growth indicates that P limitation in freshwater environments can be demonstrated rigorously at several hierarchical levels of system complexity, from algal cultures to whole lakes. A similarly rigorous demonstration of N limitation has not been achieved for marine waters. Therefore, we conclude that the extent and severity of N limitation in the marine environment remain an open question. Culture studies have established that internal cellular concentrations of nutrients determine phytoplankton growth rates, and these studies have shown that it is often difficult to relate growth rates to external concentrations, especially in natural situations. This should lead to a greater reliance on the composition of particulate matter and biomass-based physiological rates to infer nutrient limitation. Such measurements have demonstrated their utility in a wide variety of freshwater and marine environments, and, most importantly, they can be applied to systems that are difficult to manipulate experimentally or budget accurately. Dissolved nutrient concentrations are most useful in determining nutrient loading rates of aquatic ecosystems. The relative proportions of nutrients supplied to phytoplankton can be a strong selective force shaping phytoplankton communities and affecting the biomass yield per unit of limiting nutrient.

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Section: Freshwater-the Experimental Lakes Areamentioning

confidence: 89%

“…Consequently, the concept is more difficult to apply to oceans and estuaries, although it has been applied to coastal bays (Smith 1984) and some estuaries (e.g. Jaworski 198 1; Nixon 198 1; Lee and Jones 1981;Nixon and Pilson 1983).…”

Section: Evidence For Nutrient Limitationmentioning

confidence: 99%

Nutrient limitation of phytoplankton in freshwater and marine environments: A review of recent evidence on the effects of enrichment1

Hecky

Kilham

1988

Limnology & Oceanography

517

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“…In many freshwater lakes in temperate zones, monitoring the magnitude of the phosphorus (P) maximum during spring turnover is a good indicator of the abundance of phytoplankton the following summer (Wetzel 1975). In some temperate estuaries, watercolumn P concentration in inflowing waters has been used to predict the phytoplankton abundance 'downstream' in the estuary (Lee & Jones 1981).…”

Section: Introductionmentioning

confidence: 99%

Nutrient concentration in tissue of the macroalga Enteromorpha as a function of nutrient history: an experimental evaluation using field microcosms

Fong¹,

Donohoe²,

Zedler³

1994

Mar. Ecol. Prog. Ser.

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ABSTRACT. Nutrient enrichment experiments were conducted to assess the relationship between nutrient concentration in the tissue of the macroalga Enteromorpha sp. and nutrient history. Experimental units were outdoor microcosms containing mixed assemblages of algae representative of communities commonly found in coastal lagoons of southern California, USA. We determined the relationship between nutrient supply rates (nitrogen and phosphorus as well as N:P ratio), water-column nutrient concentrations, and nlacroalgal tissue nutrient concentration in samples taken from experimental microcosms containing macroalgae, phytoplankton, and cyanobacterial mats, and treated with 13 combinations of mtrogen and phosphorus addition. The regression coefficients that descnbed the fit of the relationships between tissue P and both P supply rate and water-column concentration were greater than for the same relationships for N. The relationship between tissue nutrients and either measure of nutrient history (water-column concentration or supply rate) was most useful when the nutrient was not limiting.

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“…Marine and freshwater phytoplankton share common responses to N and P enrichment and to TN : TP ratios (Hecky and Kilham 1988;Guilford and Hecky 2000;Smith 2006). Others who have applied limnological models, particularly Vollenweider (1976) or the OECD (1982), to estuaries individually (Lee and Jones 1981) or as a group (Boynton et al 1996;Meeuwig et al 2000;Dettmann 2001) have shown the significance of t w as a fundamental underpinning of an estuary's response to nutrient loading, as it is in limnology. For further discussion on this topic, we defer to Kelly (2008), who provides an excellent synthesis of these and other studies on cross-system comparisons.…”

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confidence: 99%

General empirical models for estimating nutrient load limits for Florida's estuaries and inland waters

Steward

Lowe

2009

Limnology & Oceanography

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We developed empirical models that can predict maximum allowable, nutrient loading rates or load limits (L M ) for maintenance of mesotrophy in Florida's fresh and estuarine waters. Water residence time (t w ) explains most of the variation in L M previously set by the U.S. Environmental Protection Agency and Florida's environmental agencies for total phosphorus (TP) and for total nitrogen (TN). We found that a single model for TP and for TN fit data from both estuarine and freshwater systems. Further, we show that the models are consistent with or analogous to the critical loading model of the Organization of Economic Cooperation and Development (OECD 1982): L c 5 [TP or TN] c 3 z/t w (1 + t w 0.5 ). The L M 2 t w model for TP is sufficiently similar to the OECD model as to indicate that either model could provide a reasonable fit to mesotrophy in both temperate and subtropical systems. The models can facilitate the development of total maximum daily loads for estuaries and inland waters of Florida and may have broader regional utility. They may also aid the development of nutrient concentration criteria.

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Application of the OECD Eutrophication Modeling Approach to Estuaries

Cited by 17 publications

References 4 publications

Nutrient limitation of phytoplankton in freshwater and marine environments: A review of recent evidence on the effects of enrichment1

Nutrient limitation of phytoplankton in freshwater and marine environments: A review of recent evidence on the effects of enrichment1

Nutrient concentration in tissue of the macroalga Enteromorpha as a function of nutrient history: an experimental evaluation using field microcosms

General empirical models for estimating nutrient load limits for Florida's estuaries and inland waters

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