Drivers of Oyster Reef Ecosystem Metabolism Measured Across Multiple Timescales
Drivers of Oyster Reef Ecosystem Metabolism Measured Across Multiple Timescales
复制标题
跨多个时间尺度测量牡蛎礁生态系统代谢的驱动因素
DOI:
10.1007/s12237-020-00745-w
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发表时间:
2020
影响因子:
2.7
通讯作者:
Reidenbach, Matthew A.
中科院分区:
文献类型:
--
作者:
Volaric, Martin P.;Berg, Peter;Reidenbach, Matthew A.
Oxygen flux measurements between oyster reefs and the overlying water column approximate total ecosystem metabolism, representing a potentially valuable reef monitoring tool. In this study, seasonal oxygen flux measurements were made over an intertidalCrassostrea virginicaoyster reef on the Virginia (USA) coast using the non-invasive aquatic eddy covariance (AEC) technique. Reef respiration (R) ranged from − 276 mmol m−2day−1in the summer to − 55 mmol m−2day−1in the winter, likely due to temperature effects on oyster filtering and sediment microbial activity. Reef gross primary production (GPP) varied less seasonally, resulting in net ecosystem metabolism (NEM) that was highly heterotrophic in the summer (− 141 mmol m−2day−1) and nearly balanced in the winter (− 11 mmol m−2day−1). Measurements of reef sediment chlaindicated higher concentrations of benthic microalgae than surrounding bare mudflat, while photosynthesis-irradiance curves utilizing 15-min flux averages confirmed light as a dominant short-term driver of microalgal production. Metabolic values were compared with past AEC results from this reef, creating a 4-year record that included a significant oyster die-off. Over this time span, R was closely coupled to GPP, indicating rapid internal cycling of carbon, while reef primary production was primarily attributed to sediment, rather than epiphytic, microalgae. Both R and GPP substantially decreased following the oyster die-off. These results illustrate that oyster reefs are highly dynamic environments, with complex processes that act on numerous time scales ranging from minutes to years. Consequently, AEC metabolism measurements can aid in oyster reef monitoring.
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影响因子:
2.5
作者:
B. Rothschild;Js Ault;P. Goulletquer;M. Héral
通讯作者:
B. Rothschild;Js Ault;P. Goulletquer;M. Héral
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
C. Reimers;H. Özkan‐Haller;A. Albright;P. Berg
通讯作者:
P. Berg
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
J. Rheuban;P. Berg;K. McGlathery
通讯作者:
K. McGlathery
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
G. Roegner;R. Mann
通讯作者:
R. Mann
影响因子:
2.5
作者:
Volaric, MP;Berg, P;Reidenbach, MA
通讯作者:
Reidenbach, MA