Journal ArticleDOI
Nutrient Limitation of Net Primary Production in Marine Ecosystems
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TLDR
There is a feeling among many limnologists and environmental engineers who study lakes that marine ecosystems also probably are phosphorus limited, and environmental management agencies often assume that phosphorus limitation in marine ecosystems is the rule.Abstract:
The question of nutrient limitation of primary production in estuaries and other marine ecosystems has engendered a great deal of debate. Although nitrogen is often named as the primary limiting nutrient in seawater (3, 17-19, 50, 52, 55, 61, 76, 80), this is by no means universally accepted. Many workers have argued that phosphorus is limiting (58, 71), that both nitrogen and phosphorus can simultaneously be limiting (9), or that primary production can switch seasonally from being nitrogen-limited to phosphorus-limited (6, 46). Others argue that nutrients are not limiting at all in many marine ecosystems, including highly oligotrophic waters (15). To some extent these disagreements result from poor communication due to different definitions of nutrient limitation. Considerable argument also occurs over the various methods and approaches used to estimate nutrient limitation. Limnologists in particular have tended to be critical of the methods often used to study nutrient limitation in marine ecosystems (23). Nutrient limitation in lakes has historically received more study than that in estuaries, and most mesotrophic and eutrophic north-temperate lakes are phosphorus limited (8, 62, 63, 66, 81). Thus, there is a feeling among many limnologists and environmental engineers who study lakes that marine ecosystems also probably are phosphorus limited. Lacking strong mechanistic arguments to explain why nutrient limitation might be different in estuaries than in lakes, environmental management agencies often assume that phosphorus limitation in marine ecosystems is the rule.read more
Citations
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Journal ArticleDOI
Examination of silicate limitation of primary production in Jiaozhou Bay, China
TL;DR: The results proved that silicate limited phytoplankton growth in spring, autumn and winter in Jiaozhou Bay, and the main function of nutrient silicon is to regulate and control the mechanism of the phy toplankon growth process in the ecological system in estuaries, bays and the sea.
Journal ArticleDOI
Nutrient status of seagrasses cannot be inferred from system-scale distribution of phosphorus in Shark Bay, Western Australia
Matthew W. Fraser,Gary A. Kendrick,Pauline F. Grierson,James W. Fourqurean,Mathew A. Vanderklift,Diana Walker +5 more
TL;DR: It is suggested that P availability to seagrasses is more likely a complex function of differing nutrient inputs, rates of delivery to the plants and cycling rates.
Journal ArticleDOI
Assessment of Phytoplankton Nutrient Limitation in Productive Waters: Application of Dilution Bioassays
TL;DR: Regression of algal yields onto total P concentrations from bottle experiments indicated that an 8 μg∙L−1 change in P leads to only a 1 μg�'L−2 change in chlorophyll yield, probably due to the high concentration of P in the lake.
Journal ArticleDOI
Recent developments in tropical limnology
TL;DR: In this article, the authors present a recent development in tropical limnology, focusing on the use of tropical limns in the development of tropical meteorological models, e.g., this article.
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Nutrient regeneration in the water column and at the sediment–water interface in pearl oyster culture (Pinctada margaritifera) in a deep atoll lagoon (Ahe, French Polynesia)
TL;DR: In this paper, the authors provided a first estimation of the overall contribution of pearl oyster culture to nutrient regeneration in a deep atoll lagoon in French Polynesia, and showed that the oyster cultures may stimulate phytoplankton growth near cultivation areas through rapid recycling of inorganic nutrients.
References
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Journal ArticleDOI
Particulate organic matter flux and planktonic new production in the deep ocean
TL;DR: The primary production in the oceans results from allochthonous nutrient inputs to the euphotic zone (new production) and from nutrient recycling in the surface waters (regenerated production) as discussed by the authors.
Journal ArticleDOI
Nitrogen, Phosphorus, and Eutrophication in the Coastal Marine Environment
TL;DR: Removal of phosphate from detergents is not likely to slow the eutrophication of coastal marine waters, and its replacement with nitrogen-containing nitrilotriacetic acid may worsen the situation.
Journal ArticleDOI
Nutrient limitation of phytoplankton in freshwater and marine environments: A review of recent evidence on the effects of enrichment1
R. E. Hecky,Peter Kilham +1 more
TL;DR: It is concluded that the extent and severity of N limitation in the marine environment remain an open question, despite the fact that by the late seventies the evidence for P limitation had become so great that phosphorus control was recommended as the legislated basis for controlling eutrophication in North American and European inland waters.