Talk:Redfield ratio

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C:N:P:Fe = 106:16:1:0.0001

Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 8 January 2019 and 23 April 2019. Further details are available on the course page. Student editor(s): Nuts4squirrels. Peer reviewers: Zjli0415.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 07:55, 17 January 2022 (UTC)

Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 21 January 2020 and 30 April 2020. Further details are available on the course page. Student editor(s): EEBFeco.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 07:55, 17 January 2022 (UTC)

Refocusing on the Topic

I have recently made some additions and very minor changes to the Discovery and Explanation settings, but I feel that this article could use some more fundamental revisioning. I feel that too much of the article focuses on a narrative around Redfield himself rather than the scientific topic itself which he pioneered, and thus, some superfluous material could be removed, condensed, or perhaps given a sole, designated place within the Discovery header (my favorite choice). As it stands right now, much of the interrelated scientific knowledge on the topic is loosely sprinkled around the discovery and explanation sections with little meaningful connections drawn among them. A more clear divide between the headers, each with a distinct purpose of what kind of information they will convey, would greatly improve the article.

EEBFeco (talk) 10:39, 26 March 2020 (UTC)EEBFeco

Update Redfield ratios

Redfield ratios as reported in this article are out of date. The original Redfield N:P is 16:1, but it is much closer to 15:1 based on observations of the last decade or so. Hulten (talk) 10:01, 11 August 2013 (UTC)

Student Editor Digs into Redfield Ratio

As an assigned student editor, I'll be working to update the Extended Redfield Ratio(s) with the extensive research that has been done to quantify the stoichiometric nutrient limitations across the modern ocean. While the current 'Extended Redfield Ratio' is correct in the difficulty of measuring iron concentration across the oceans, many groups have measured at least some baseline for iron concentration in the ocean. What's more, many other trace metals may be sequestered in the upper ocean by biotic recirculation. I will be adding some estimates from current literature on how these non-classical (C,N,P) elements compare in concentration across the modern ocean. Ultimately, I hope the Redfield Ratio page can be a quick reference for viewers hoping to get a quick snapshot/generalization of the bulk nutrient composition of the oceans and how this is maintained by biotic sequestration.

Nuts4squirrels (talk) 00:19, 22 February 2019 (UTC)

These are the sources I'm considering to add additional context to the 'Extended Redfield Ratio' subarticle

Iron Nutrition of Phytoplankton and Its Possible Importance in the Ecology of Ocean Regions with High Nutrient and Low Biomass." Oceanography : The Official Magazine of the Oceanography Society. 4.2 (1991): 56-61. Web.

Twining, B.S., S.B. Baines, N.S. Fisher. Element stoichiometries of individual plankton cells collected during the Southern Ocean Iron Experiment (SOFeX). Limnol. Oceanogr. Vol 49(6), 2004

Tortell, P.D., M.T. Maldonado, J. Granger, N.M. Price. Marine bacteria and biogeochemical cycling of iron in the oceans. Microbiology Ecology. Vol. 29(1). 1999

Barbeau, K. E.B. Kujawinski, J.W. Moffett. Remineralization and recycling of iron, thorium and organic carbon by heterotrophic protists in culture. Aquat Microb Ecol. Vol. 24. 2001

Benner, R., J. Pakulski, M. McCarthy, J.I. Hedges, P.G. Hatcher. Bulk chemical Characteristics of Dissolved Organic Matter in the Ocean. Science. Vol. 255. 1992

Boiteau RM, Hawco NJ, Mende DR, McIlvin MR, Sedwick PN, Saito MA, Delong EF, Repeta DJ. Microbes adapt to iron scarcity through siderophore production across the eastern tropical Pacific. Proc Natl Acad Sci USA. 2016;113:14237–14242. [PMC free article] [PubMed]

Hansell DM, Carlson CA, editors. Biogeochemistry of Marine Dissolved Organic Matter. Amsterdam: Academic Press; 2015. Chap. 2. Mawji E, Gledhill M, Milton JA, Tarran GA, Ussher S, Thompson A, Wolff GA, Worsfold PJ, Achterberg EP. Hydroxamate siderophores: Occurrence and importance in the Atlantic Ocean. Environ Sci Technol. 2008;42:8675–8680. [PubMed] Twining BS, Baines SB. The trace metal composition of marine phytoplankton. Annu Rev Mar Sci. 2013;5:191–215. [PubMed] [CrossRef] Dubinin, A.V. Geochemistry of Rare Earth Elements in the Ocean. Lithology and Mineral Resources. Vol. 39(4). 2004.

Nuts4squirrels (talk) 21:07, 22 February 2019 (UTC)

Essentially all the preexisting references are not int he general wikipedia format. I'll correct this once I figure out how to refer to the same reference across multiple points of the Wikipedia page.

Nuts4squirrels (talk) 20:03, 1 March 2019 (UTC)

Wiki Education assignment: Biogeochemical Processes

This article was the subject of a Wiki Education Foundation-supported course assignment, between 18 January 2023 and 10 May 2023. Further details are available on the course page. Student editor(s): Hemst010 (article contribs).

— Assignment last updated by Quovi (talk) 21:07, 19 April 2023 (UTC)