Periphyton Biomass Accumulation from the Shark River and Taylor Sloughs, Everglades National Park (FCE LTER), South Florida, USA, January 2003 - ongoing

Periphyton biomass was measured bimonthly at FCE LTER sites in Shark Slough. Fifteen 9.8 cm2 cores were removed from the floating periphyton mat and composited into a single sample. Percent aerial cover of floating periphyton was estimated visually in the field. Data are presented in terms of grams dry and ash-free dry mass per area. Total phosphorus, nitrogen and carbon concentration in the periphyton mat is also presented on a dry weight basis. This is part of a continuous data collection to test the hypothesis that phosphorus and nitrogen limit productivity at the upstream and downstream ends, respectively, of the FCE transects. Conclusions await longer-term data collection.

研究人员于鲨鱼沼泽（Shark Slough）的FCE LTER站点中，每双月开展周丛生物量（Periphyton biomass）的测定工作：从漂浮周丛生物垫上采集15个面积为9.8 cm²的岩芯样品，并混合为一个复合样品；野外通过目视法估测漂浮周丛生物的盖度百分比。本数据集以每单位面积的干重及无灰干重（ash-free dry mass，单位：克）形式呈现，同时包含周丛生物垫中总磷、总氮及总碳的浓度数据，所有浓度数据均以干重为基准进行展示。本数据集属于长期连续监测项目的一部分，旨在验证磷与氮分别限制FCE样带上游与下游区域生产力的假说，相关结论仍需依托更长期的监测数据方可得出。