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Table 2 Criteria used to determine ping origins. Adapted from ”Probability of detecting marine predator-prey and species interactions using novel hybrid acoustic transmitter-receiver tags,” by Baker et al., 2014, PLOS ONE, 9, e98117

From: A novel approach to quantifying the spatiotemporal behavior of instrumented grey seals used to sample the environment

Interval Length Description
0.26–0.29s Possible echos or multipath transmissions
0.30–0.70s Interval range between consecutive pings
0.71–1.50s Interval range between 1 or more skipped pings
>1.50s Spurious pings or 3 or more skipped pings
  1. Ping origins deduced from intervals between consecutive pings