PETERSEN型標識放流調査において,いわゆるC型の誤差原因が存在する場合の標識率法について

概要

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In the PETERSEN-type tagging experiment, the type C systematic errors caused by the abnormal behavior of the tagged fish, give the bias to the estimate of fish population size. The author introduces the tagged ratio methods to remove such a bias, under the following assumptions, 1) type C systematic errors affect the vulnerability of the tagged fish during some intervals after the liberation. 2) the ratios of vulnerability of the tagged fish to that of untagged fish in these intervals are constant (Eqns. 5 ?? 8, 10 ?? 11, 12 ?? 13 and 14 ?? 15). Some examples for calculation by these methods are also shown (Tables 1 ?? 4 and Figs. 1 ?? 10). And the results are compared with that of by the previous methods (Table 5).
公益社団法人日本水産学会の論文