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Nitrogen fixation in benthic microal...

Nagel, Eric Dale.

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Nitrogen fixation in benthic microalgal mats: An important, internal source of "new" nitrogen to benthic communities in Florida Bay.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Nitrogen fixation in benthic microalgal mats: An important, internal source of "new" nitrogen to benthic communities in Florida Bay./
作者:	Nagel, Eric Dale.
面頁冊數:	111 p.
附註:	Source: Masters Abstracts International, Volume: 43-03, page: 0808.
Contained By:	Masters Abstracts International43-03.
標題:	Environmental Sciences. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1424137
ISBN:	0496139398

Nitrogen fixation in benthic microalgal mats: An important, internal source of "new" nitrogen to benthic communities in Florida Bay.
Nagel, Eric Dale.

Nitrogen fixation in benthic microalgal mats: An important, internal source of "new" nitrogen to benthic communities in Florida Bay. - 111 p.

Source: Masters Abstracts International, Volume: 43-03, page: 0808.

Thesis (M.S.)--University of Maryland, College Park, 2004.

The introduction of "new" nitrogen via nitrogen fixation may have a significant effect on nitrogen availability in estuaries and other partially enclosed aquatic systems. This thesis examines rates of nitrogen fixation associated with benthic microalgal communities in Florida Bay to determine the relative importance of this source as compared to external loads of nitrogen to the system.

ISBN: 0496139398Subjects--Topical Terms:

676987
Environmental Sciences.

Nitrogen fixation in benthic microalgal mats: An important, internal source of "new" nitrogen to benthic communities in Florida Bay.
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245 1 0 $a Nitrogen fixation in benthic microalgal mats: An important, internal source of "new" nitrogen to benthic communities in Florida Bay.
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500 $a Director: Jeffrey C. Cornwell.
502 $a Thesis (M.S.)--University of Maryland, College Park, 2004.
520 $a The introduction of "new" nitrogen via nitrogen fixation may have a significant effect on nitrogen availability in estuaries and other partially enclosed aquatic systems. This thesis examines rates of nitrogen fixation associated with benthic microalgal communities in Florida Bay to determine the relative importance of this source as compared to external loads of nitrogen to the system.
520 $a Nitrogen fixation was measured using a number of experimental techniques to calibrate the use of the acetylene reduction assay and to determine the suitability of the N2:Ar comparison technique for measuring rates of nitrogen fixation. Nitrogen fixation was found to be mediated by benthic microalgae at the surface of the sediments in Florida Bay, and higher rates of fixation were measured in areas dominated by benthic microalgal mats. Nitrogen fixation was highest in the relatively phosphorus-rich western basins and was stimulated by experimental phosphorus additions, suggesting that nitrogen fixation is partially phosphorus-limited.
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