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Use of binary and truncated negative binomial modelling in the analysis of recreational catch data

机译:二元和截断负二项式模型在休闲渔获量数据分析中的应用

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摘要

Data from surveys of recreational anglers fishing on three estuaries in eastern Australia reveal highly skewed distributions of catches with many zeros. Such data may be analyzed using a two-component approach involving a binary (zeroon-zero catch) response and the conditionally distributed non-zero catches. A truncated negative binomial model was effective in analyzing the non-zero catches. Covariates were incorporated in the modelling, and their critical assessment has led to improved measures of fishing effort for this recreational fishery.
机译:来自澳大利亚东部三个河口的休闲垂钓者垂钓调查的数据显示,钓获物的高度偏斜分布具有许多零。可以使用涉及二进制(零/非零捕获)响应和有条件分布的非零捕获的两成分方法来分析此类数据。截短的负二项式模型可有效地分析非零捕获。协变量被纳入模型中,它们的关键评估已导致改进了该休闲渔业的捕捞努力量度。

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