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首页> 外文期刊>Estuarine Coastal and Shelf Science >Direct contribution of clams (Ruditapes philippinarum) to benthic fluxes, nitrification, denitrification and nitrous oxide emission in a farmed sediment
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Direct contribution of clams (Ruditapes philippinarum) to benthic fluxes, nitrification, denitrification and nitrous oxide emission in a farmed sediment

机译：蛤（Ruditapes philippinarum）对养殖​​沉积物中底栖通量，硝化，反硝化和一氧化二氮排放的直接贡献

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摘要

The influence of the manila clam (Ruditapes philippinarum) on N-cycle processes, and oxygen and nutrient fluxes in a farmed sediment was investigated using a multiple core incubation approach and parallel incubations of individual clams. Clam population/biomass density varied similar to 8-fold between cores and all sediment-water column solute (O-2, N-2, N2O, NH4+, NOx and DIN) fluxes and benthic process (N-regeneration, nitrification and denitrification) rates were-strongly and significantly correlated with clam density/biomass. Isolated clams exhibited high rates of respiration, N-excretion, nitrification and denitrification of 2050 +/- 70, 395 +/- 49, 201 +/- 42 and 235 +/- 40 nmol individual(-1) h(-1), respectively.
机译：使用多核心孵化方法和平行孵化单个蛤的方法，研究了马尼拉蛤（Ruditapes philippinarum）对N循环过程以及养殖沉积物中氧气和养分通量的影响。蛤的种群/生物量密度在岩心与所有沉积物-水柱溶质（O-2，N-2，N2O，NH4 +，NOx和DIN）通量和底栖过程（N再生，硝化和反硝化）之间的变化约为8倍比率与蛤密度/生物量密切相关。孤立的蛤exhibit的呼吸，N排泄，硝化和反硝化率较高，分别为2050 +/- 70、395 +/- 49、201 +/- 42和235 +/- 40 nmol（-1）h（-1） ， 分别。

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