Resolving Estuarine Nitrogen Use by Phytoplankton Communities Using a Whole Ecosystem Tracer Approach
Resolving Estuarine Nitrogen Use by Phytoplankton Communities Using a Whole Ecosystem Tracer Approach
复制标题
使用整个生态系统示踪方法解决河口浮游植物群落的氮利用问题
DOI:
10.1007/s12237-021-00905-6
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发表时间:
2021
影响因子:
2.7
通讯作者:
Stauffer, Beth A.
中科院分区:
文献类型:
--
作者:
Babitch, Jaylyn W.;Nelson, James A.;Deegan, Linda A.;Sullivan, Hillary;Stauffer, Beth A.
The use of nutrients by diverse phytoplankton communities in estuarine systems, and their response to changes in physical and biogeochemical processes in these natural systems, is a significant ongoing area of research. We used a whole ecosystem15NO3−tracer experiment to determine the uptake of different nitrogen (N) forms in phytoplankton functional groups over a mid- to neap tidal cycle in a salt marsh creek in Plum Island Estuary, Massachusetts, USA. We quantified the biomass and δ15N for three groups corresponding to micro- (20–200 μm; microP), nano- (3–20 μm; nanoP), and picophytoplankton (< 3 μm; picoP). All three size classes showed distinct use of recycled N sources throughout the 11-day sampling period and minimal direct assimilation of the15NO3−tracer. MicroP consistently used high amounts of creek-derived15NH4+, even with a shift at neap tide from diatom- to dinoflagellate-dominated communities (including members of the harmful genusAlexandrium). NanoP use of recycled15NH4+increased over the mid-neap tidal cycle, while picoP use decreased. Both biomass and NH4+use (as highest δ15N values) of all size groups were maximized during neap tide. This study demonstrates partitioning of recycled N use among size-based phytoplankton groups in the estuary, with distinct effects of tidal cycle on the nutrient uptake of each group, and with important implications for the roles of diverse phytoplankton communities in estuarine nutrient cycling.
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DOI:
10.1007/s12237-015-9949-z
发表时间:
2015-11-01
期刊:
Estuaries and coasts : journal of the Estuarine Research Federation
影响因子:
--
作者:
Ralston DK;Brosnahan ML;Fox SE;Lee K;Anderson DM
通讯作者:
Anderson DM
影响因子:
3.7
作者:
Li WK;Andersen RA;Gifford DJ;Incze LS;Martin JL;Pilskaln CH;Rooney-Varga JN;Sieracki ME;Wilson WH;Wolff NH
通讯作者:
Wolff NH
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Kimberley A. Duernberger;C. Tobias;M. Mallin
通讯作者:
M. Mallin
影响因子:
2.5
作者:
Nelson, James A.;Deegan, Linda;Garritt, Robert
通讯作者:
Garritt, Robert
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
Craig R. Tobias;Matthew Cieri;Bruce J. Peterson;L. Deegan;Joseph Vallino;Jeffrey Hughes
通讯作者:
Jeffrey Hughes