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Number of individuals counted in sample or sample fraction
Abundance of the taxon at the station. Numbers reflect abundance per 10 nautical miles sampled by the CPR device.
All taxa are counted whenever present. Absence of a taxon in a sample is indicated by a count of 0. "NA" means a numeric count value was not recorded during initial data collection, which suggests the taxon was not present. However, because a "0" was not explicitly recorded in these instances, "NA" is used in this dataset to denote a lack of a count value.