[Coral-List] rise of nitrogen deposition from the atmosphere on a coral reef

[Anne Cohen]

Dear Mike

I am flattered but the kudos go to Abby and Tony for figuring out how to measure the nitrogen isotope composition of barely-there coral skeletal organics with extremely high precision 

Best wishes
Anne 


Sent from my iPhone

> On May 19, 2017, at 11:40 AM, Risk, Michael <riskmj at mcmaster.ca> wrote:
> 
> Thanks, Doug. 
> 
> That is a great paper, on several levels. If Anne Cohen is involved, you know the chemistry will be done right.
> 
> This paper tells us two things:
> 1. we need to abandon the concept of remote reefs being outside land-based sources.
> 2. any reef monitoring program that does not routinely assess nitrogen isotope levels is sadly out of date.
> 
> A bit closer to home: some years ago, we published on 15N levels in gorgonians off Florida, and on a "remote" island in the Bahamas (Sherwood et al. 2010, Env Sci Tech). We found clear sewage signals in the Florida corals, related to human density (no surprise). Of interest was the finding that (probably) over the past 20 years, atmospheric deposition of N had elevated the N signals in the Bahamian corals by >0.3 per mille.
> 
> Mike
> ________________________________________
> From: coral-list-bounces at coral.aoml.noaa.gov [coral-list-bounces at coral.aoml..noaa.gov] on behalf of Douglas Fenner [douglasfennertassi at gmail.com]
> Sent: May 18, 2017 6:56 PM
> To: coral list
> Subject: [Coral-List] rise of nitrogen deposition from the atmosphere on a      coral reef
> 
> 21st-century rise in anthropogenic nitrogen deposition on a remote coral
> reef.   Science
> 
> http://science.sciencemag.org/content/356/6339/749?utm_campaign=toc_sci-mag_2017-05-18&et_rid=17045989&et_cid=1333627
> 
> Not open-access.  Note "see all authors and affiliations" and click on
> "corresponding author".
> 
> Perspective (short popular article):  Nitrogen pollution knows no bounds
> http://science.sciencemag.org/content/356/6339/700?utm_campaign=toc_sci-mag_2017-05-18&et_rid=17045989&et_cid=1333627
> 
> Not open-access.  See "see all authors and affiliations".
> 
> Cheers,  Doug
> 
> --
> Douglas Fenner
> Contractor for NOAA NMFS, and consultant
> "have regulator, will travel"
> PO Box 7390
> Pago Pago, American Samoa 96799  USA
> 
> phone 1 684 622-7084
> 
> Join the International Society for Reef Studies.  Membership includes a
> subscription to the journal Coral Reefs, and there are discounts for pdf
> subscriptions and developing countries.  Coral Reefs is the only journal
> that is ALL coral reef articles, and it has amazingly LOW prices compared
> to other journals.  Check it out!  www.fit.edu/isrs/
> 
> "Belief in climate change is optional, participation is not."- Jim Beever.
>  "Everyone is entitled to their own opinion, but not to their own facts."-
> Daniel Patrick Moynihan.
> 
> Study: Stopping global warming only way to save coral reefs.
> https://www.yahoo.com/news/study-stopping-global-warming-only-way-save-coral-180833431.html
> 
> 'Extreme and unusual' climate trends continue after record 2016.
> http://www.bbc.com/news/science-environment-3932
> 
> A roadmap for rapid decarbonization
> http://science.sciencemag.org/content/355/6331/1269?utm_campaign=toc_sci-mag_2017-03-23&et_rid=17045989&et_cid=1233226
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