ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Ambient concentrations of such nitrogenous nutrients as ammonia are below detection limits with conventional chemical methods in surface waters of central oceanic oligotrophic areas6,7. Indirect evidence suggests that the concentrations of ammonia and urea in the North Pacific central gyre7 are ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/284439a0
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