Redfield stoichiometry
WebRedfield Ratio. The so-called Redfield ratio is the stoichiometric ratio of essential elements (N:P) inside the phytoplankton cells and the ratio of inorganic nutrients in the deep ocean. … WebMay 18, 2024 · Since the recognition that life on Earth is characterized by a striking regularity in the ratio of elements, as originally characterized by Redfield (Redfield 1958; Geider and La Roche 2002; Eighty years of Redfield 2014), stoichiometric ratios have been a primary target of astrobiological measurements and theories (Elser 2003; Young et al. 2014).
Redfield stoichiometry
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WebApr 25, 2024 · Abstract Elemental homeostasis has been largely characterized using three important elements that were part of the Redfield ratio (i.e., carbon: nitrogen: phosphorus). These efforts have revealed substantial diversity in homeostasis among taxonomic groups and even within populations. WebMetabolism provides a basis for using first principles of physics, chemistry, and biology to link the biology of individual organisms to the ecology of populations, communities, and …
Webthe ocean environment. Redfield (1958) observed that, on average, planktonic biomass contains C, N and P in an atomic ratio of 106:16:1, similar to the ratio of C, N and P in marine water. The elegant simplicity of this stoichiometric relationship-the Redfield ratio-belies its incredible utility. The consistent stoichiometry of C, N and P in ... The Redfield ratio or Redfield stoichiometry is the consistent atomic ratio of carbon, nitrogen and phosphorus found in marine phytoplankton and throughout the deep oceans. The term is named for American oceanographer Alfred C. Redfield who in 1934 first described the relatively consistent ratio of nutrients in … See more For his 1934 paper, Alfred Redfield analyzed nitrate and phosphate data for the Atlantic, Indian, Pacific oceans and Barents Sea. As a Harvard physiologist, Redfield participated in several voyages on board the research vessel See more Redfield discovered the remarkable congruence between the chemistry of the deep ocean and the chemistry of living things such as … See more The Redfield ratio was initially derived empirically from measurements of the elemental composition of plankton in addition to the nitrate and phosphate content of seawater collected from a few stations in the Atlantic Ocean. This was later supported by … See more • Ecological stoichiometry • Biogeochemical cycle See more The research that resulted in this ratio has become a fundamental feature in the understanding of the biogeochemical cycles of the … See more Some feel that there are other elements, such as potassium, sulfur, zinc, copper, and iron which are also important in the ocean chemistry. In particular, iron (Fe) was considered of great importance as early biological oceanographers hypothesized … See more
WebMar 1, 2000 · A linear inverse mixing model is applied to hydrographic, nutrient, and carbon data collected during Joint Global Ocean Flux Study and World Ocean Circulation Experiment cruises in 1995 to estimate the ΔC org /ΔN/ΔP/ΔSi/-ΔO 2 remineralization ratios within the Arabian Sea between 550 and 4500 m. The observed concentrations are separated into … WebSep 1, 2024 · Spatial patterns of soil carbon (C), nitrogen (N) and phosphorus (P) and their stoichiometric characteristics (C:N:P) play an important role in nutrient limitations, …
WebFeb 13, 2015 · Biogeochemical simulations with the Biogeochemical Elemental Cycling model using Redfield and variable DOM stoichiometry corroborate the need for non-Redfield dynamics to match the observed DOM stoichiometry.
WebEcological stoichiometry seeks to discover how the chemical content of organisms shapes their ecology. Ecological stoichiometry has been applied to studies of nutrient recycling, resource competition, animal growth, and nutrient limitation patterns in whole ecosystems. The Redfield ratio of the world's oceans is one very famous application of ... hot springs virginia countyWebJan 16, 2013 · The proportion in which carbon and growth-limiting nutrients are exported from the oceans’ productive surface layer to the deep sea is a crucial parameter in models of the biological carbon pump. Based on >400 vertical flux observations of particulate organic carbon (POC) and nitrogen (PON) from the European Arctic Ocean we show the common … hot springs village walmart pharmacyWebAbout Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators ... line for mac app storeWebRedfield equation. In quantum mechanics, the Redfield equation is a Markovian master equation that describes the time evolution of the reduced density matrix ρ of a strongly … hot springs village used cars for saleWebJan 10, 2024 · Stelzer RS, Lamberti GA. Ecological stoichiometry inrunning waters: periphyton chemical composition and snail growth. Ecology. 2001;83:1039–51. Article … hot springs village we the peopleWebEcological stoichiometry: Searching for unifying principles from individuals to ecosystems. HE Jin-Sheng1,2 and HAN Xing-Guo3 ... (Redfield, 1958)。这一开创性的研究成为以后生态化学计量学的奠基之作。从Elser和Hassett (1994)以及Elser等(2000)的重要文章, 到以后Sterner和Elser (2002)的专著《Ecological ... line for mac freeWebDec 16, 2004 · Deviations from Redfield stoichiometry may be attributable to surface adsorption of phosphorus rather than to biological processes, and this scavenging could … hot springs virginia private bathing