Periphyton Accumulation Rates from Shark River Slough, Taylor Slough and Florida Bay, Everglades National Park (FCE LTER), South Florida, USA, January 2001 - ongoing

Periphyton accumulation rates were measured quarterly at FCE LTER sites in SRS and TS/Ph marshes (SRS 1-3, TS/Ph 1-3) and the seagrass meadows of Florida Bay (TS/Ph 9-11). Glass slides were used as artificial substrates for periphyton growth. Twenty slides were incubated for 2 months in triplicate periphytometers (flow-through plastic boxes) at the surface (marsh sites) and bottom (seagrass sites) at each site. In addition, at seagrass sites, twelve artificial seagrass blades were incubated for two months in triplicate at each site. Blades were made from strips of transparency film anchored to the bottom and floating upward toward the surface by use of a styrofoam bead on the top of the blade. Data are presented in terms of grams dry and ash-free dry mass accumulated per area per time, as well as the chlorophyll a content of the dry mass and its rate of accumulation. Total phosphorus content of accumulated periphyton is also provided. This is part of continuous data collection to test the hypothesis that phosphorus availability and hydroperiod influence periphyton production in the Everglades.

在SRS和TS/Ph沼泽（SRS 1-3、TS/Ph 1-3）以及佛罗里达湾的海草床（TS/Ph 9-11）的FCE LTER站点，按季度测量周丛生物（Periphyton）的累积速率。玻璃载玻片被用作周丛生物生长的人工基质。每个站点的表层（沼泽站点）和底层（海草床站点），将20张载玻片置于一式三份的周丛生物培养仪（periphytometers，流通式塑料箱）中培养2个月。此外，在海草床站点，每个站点将12片人工海草叶片一式三份培养两个月。叶片由透明胶片条制成，底部固定，顶部通过聚苯乙烯泡沫塑料珠向上浮向水面。数据以单位面积单位时间累积的干质量（dry mass）和无灰干质量（ash-free dry mass）（单位：克）、干质量中的叶绿素a含量及其累积速率表示。还提供了累积周丛生物的总磷含量。这是持续数据收集的一部分，旨在验证磷有效性和水文周期影响大沼泽地周丛生物生产力的假设。