Description: | During Experiment III (2019), we conducted visual shrimp observations during both = daytime (n=6 dates: July 1, 11, 16, 22; August 7, 12) and night time (n=5, July 2, 11, 22; August 7, 12) in all study pools in PA (n=5) and PB (n=5). Mean shrimp abundance was estimated over a two-minute observation period for each pool and the control and electric treatment nested within each pool and identified as one of three taxa (i.e. Xiphocaris, Atya, or Macrobrachium). Shrimp were observed from a distance, so as to not disturb shrimp activity. When two observers were present, they would simultaneously count the number of shrimp for one minute per person. To avoid counting the same shrimp twice, observers would select a marker in the pool and one observer counts clockwise while the other counts counterclockwise. The same protocol was used for nocturnal observations, except we used red headlamps in order to not disturb shrimp. If shrimp were disturbed upon arrival, observers would turn off their headlamps until shrimp activity resumed. On several dates N/a is reported for all taxa, shrimp observations did not occur on these dates. On dates where N/a is present for only one taxa, the abundance of that individual taxa was not recorded. |