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
Irreversible change of the oceanic carbon cycle in the earliest Cambrian: High-resolution organic and inorganic carbon chemostratigraphy in the Three Gorges area, South China
Tomoko Ishikawa,Yuichiro Ueno,Degan Shu,Yong Li,Jian Han,Junfeng Guo,Naohiro Yoshida,Tsuyoshi Komiya,Tsuyoshi Komiya +8 more
TL;DR: In this paper, the authors presented the first high-resolution δ13Corg chemostratigraphy of drill core samples across the Precambrian/Cambrian boundary in the Three Gorges area, South China.
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Primary plankton production, respiration and nitrification in a shallow temperate estuary during summer
TL;DR: The relationship between respiration and primary production suggested that respiration rates based on substrates not associated with the autochthonous pelagic primary production increased greatly from the outer to the inner estuary and that the consumption of autotrophic production by heterotrophs in the water column was higher in the less productive outer estuary than in highly productive intermediate and inner areas.
Book ChapterDOI
Predicting The Responses Of The Coastal Zone To Global Change
P.M. Holligan,W.A. Reiners +1 more
TL;DR: In this paper, the authors give an overview on predicting the responses of the coastal zone to global change, which is functionally defined as "that space in which terrestrial environments influence marine (or lacustrine) environments and vice versa" and the dynamic nature of the interface between land and sea, makes coastal zone particularly vulnerable to global changes as a consequence of the direct (physical disturbance, pollution, and so in) and indirect (climatic) effects of man on coastal environments.
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The role of planktonic bacteria in phosphorus cycling in lakes ‐ Sink and link
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Responses of epiphytes on eelgrass, Zostera marina L., to separate and combined nitrogen and phosphorus enrichment
TL;DR: In this article, the effects of separate and combined nitrogen (N) and phosphorus (P) enrichment on the development of epiphytes on eelgrass (Zostera marina L.).
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.