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Observations were performed at five time points during 2014 and 2015 to consider seasonal influences. Scuba divers conducted visualsurveys on an AC and DC cable in water depth of approximately 5, 10, and 15 m respectively.
fish species, size of single fish, and abundance of species (observations of divers with two count types: stationary point count within an imaginary cylinder of 15 m diameter and transect count 30 m along the cable)
No behavioral differences were observed during the exact times of power transitions. Moreover, there were no significant differences in the species richness between current "on" and "off". Although more fish were recorded during the "off" periods for both count types, no statisticallysignificant differences were present compared to the "on" period. The authors conclude that further research is needed as low sample sizes and high count variability may have influenced statistical analyses.