Request stream periphyton and macroinvertebrate samples

Unprocessed benthic periphyton and macroinvertebrate taxonomy samples from the D04 Rio Cupeyes site in Puerto Rico.

Benthic periphyton and macroinvertebrate sampling in wadeable streams occurs three times per year at each site, roughly spring, summer, and autumn. Benthic biofilms are collected in wadeable streams during periods of stable stream flow (e.g., when the stream is not flooding, defined as >3x median discharge for the preceding year) using a series of scrubbing procedures, depending on habitat and substratum type. Taxonomy samples are preserved in 60 mL HDPE bottles in glutaraldehyde. Macroinvertebrate samples were collected using a Surber sampler in riffles and runs throughout the stream, and preserved in 70% ETOH in HDPE jars in the field. Periphyton samples are from 18 February 2015 (n=9) and 15 July 2015 (n=9), and macroinvertebrate samples are from 24 June 2015 (n=8).