Simulated net tows in a computer model of a body of water containing aggregations of individuals demonstrated that the size and distribution of the patches significantly affects both the accuracy and the precision of estimates of abundance. A comparison between tows taken with nets of 25‐, 100‐, and 200‐cm diameter showed that, in general, estimates from the largest net were the most accurate and precise.
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Wiebe et al. (1968) studied this question.
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