From January 2014 to April, 2015, eight high elevation ponds were sampled in St. Ann Parish, Jamaica. These ponds were classified as small, mixed, or large based on cluster analysis, which created these groups based on size and physicochemical parameters. Regression of mass on length was completed for most benthic macroinvertebrate taxa, and consequently 170 length-mass equations were developed for use in mass determination locally and regionally. The sample area was taxonomically rich, consisting of 78 species, 43 families, and 14 orders, with class Insecta having the largest number of taxa. Biomass was constant over time, which implied that food availability was not limited for invertebrates in the sample area. The results indicated that biomass in the sample area was dominated by Aeshnidae and Belostomatidae, which had significantly higher values than most other taxa. Culicidae, and the families of Diptera in general, were not well represented in the biomass within the sample area. Total production for the sample area was estimated to be 398.87 g m-2yr-1, with the highest values for production being obtained for Anisoptera, Podocopoida, and Ephemeroptera; while the P/B ratio of Podocopoida was significantly higher than most taxa. When the results were assessed based on pond groups, families of the class Insecta, particularly Aeshnidae and Belostomatidae, had significantly high biomass in large and mixed ponds, while Physidae dominated the biomass of small ponds. The productivity results almost mirrored what was observed for biomass; however, Cypridoidea (ostracods) showed high productivity in the mixed group although its biomass contribution was <3%. These findings are the first to examine biomass, production and P/B ratios in a lentic habitat in Jamaica, compute length-mass equations, and form an important record against which other studies within the island and throughout the Caribbean can be compared to.

中文翻译：

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牙买加圣安（西印度群岛）高海拔池塘底栖大型无脊椎动物的生物量，生产力和生物量周转率（P / B）

从2014年1月到2015年4月，在牙买加的圣安教区采样了8个高海拔池塘。根据聚类分析，这些池塘分为小池塘，混合池塘或大池塘，聚类分析是根据大小和理化参数创建的。大多数底栖大型无脊椎动物分类单元都完成了长度上的质量回归，因此开发了170个长度-质量方程，用于局部和区域质量测定。样本区域的分类学丰富，由78种，43个科和14个目组成，其中Insecta类的分类单元数量最多。生物量随时间变化是恒定的，这意味着样本区域无脊椎动物的食物供应不受限制。结果表明，样品区的生物量主要由Aeshnidae和Belostomatidae组成，其价值明显高于大多数其他分类单元。在样品区的生物量中，葫芦科和双翅目科通常没有很好地代表。样本区域的总产量估计为398.87 g m-2yr-1，其中最高的产值是Anisoptera，Podocopoida和Ephemeroptera。而Podocopoida的P / B比则明显高于大多数类群。当基于池塘组评估结果时，昆虫纲的昆虫科，特别是Aeshnidae和Belostomatidae，在大型和混合池塘中的生物量明显较高，而Physidae在小型池塘的生物量中占主导地位。生产力结果几乎反映了生物质的观察结果；然而，尽管Cypridoidea（兽脚类动物）的生物量贡献< 3％。这些发现是第一个检查牙买加一个lentic栖息地的生物量，产量和P / B比，计算长度-质量方程，并形成一个重要的记录，可与该岛内和整个加勒比地区的其他研究进行比较。