North Temperate Lakes LTER Pelagic Macroinvertebrate Abundance 1983 - current (Reformatted to the ecocomDP Design Pattern)

This data package is formatted as an ecocomDP (Ecological Community Data Pattern). For more information on ecocomDP see https://github.com/EDIorg/ecocomDP. This Level 1 data package was derived from the Level 0 data package found here: https://pasta.lternet.edu/package/metadata/eml/knb-lter-ntl/13/32. The abstract below was extracted from the Level 0 data package and is included for context: Five vertical tows are done at the deepest point of each of the seven primary lakes in the Trout Lake area (Allequash, Big Muskellunge, Crystal, Sparkling, and Trout lakes and bog lakes 27-02 [Crystal Bog], and 12-15 [Trout Bog]) using a 1-mm mesh net with a 1-m wide mouth. On Trout Lake four additional sites are sampled, where depths are approximately at 10 m, 15 m, 20 m, and 25 m respectively, with three tows done at each site. Trout Lake was the only lake sampled in 2020. All samples are taken in darkness. Samples are preserved and counted, yielding numbers caught. These night tows target the large invertebrate planktivore component of the pelagic zooplankton community. Sampling Frequency: annually Number of sites: 11

本数据包采用生态群落数据模式（ecocomDP）进行格式化。有关ecocomDP的更多信息，请访问：https://github.com/EDIorg/ecocomDP。
本一级（Level 1）数据包源自以下链接中的零级（Level 0）数据包：https://pasta.lternet.edu/package/metadata/eml/knb-lter-ntl/13/32。
以下摘要提取自该零级数据包，用于提供背景信息：
研究人员使用网目尺寸1毫米、网口宽度1米的采样网，在鳟湖（Trout Lake）区域内7个主要湖泊的最深点位各完成5次垂直拖网采样，这7个湖泊分别为阿勒夸什湖（Allequash）、大梭子鱼湖（Big Muskellunge）、水晶湖（Crystal）、斯帕克林湖（Sparkling）、鳟湖（Trout），以及沼泽湖27-02号［水晶沼泽（Crystal Bog）］和12-15号［鳟鱼沼泽（Trout Bog）］。
针对鳟湖，研究人员额外设置了4个采样点，各点水深分别约为10米、15米、20米和25米，每个点位完成3次拖网采样。2020年仅对鳟湖开展了采样工作。
所有采样均在夜间进行。采集的样本经固定处理后进行计数，得到捕获生物的个体数量。本次夜间拖网采样的目标为敞水带浮游动物群落中的大型无脊椎浮游食性类群。
采样频率：每年1次。
采样点位总数：11个。