杨明,丁福江

• 1:上海市水产研究所
• 2:上海市水产技术推广站
• 3:上海申漕特种水产开发公司

摘要(Abstract)：

【目的】研究池塘精养条件下罗氏沼虾(Macrobrachium rosenbergii)4种肥满度指数的实际应用差异,探讨准确度最高的条件因子。【方法】采用Fulton条件因子K、Le Cren相对条件因子K_n、Jones条件因子B和Richter条件因子B′分别计算罗氏沼虾的肥满度,比较4种肥满度指数的实际应用差异。【结果】实际体质量与反算体质量的回归统计分析表明,回归斜率准确度依次为K_n> B′> B> K,变异系数B′ B′> B> K;从回归截距判定,其准确度为K_n> B′> B> K。各肥满度指数的精准度依次为K_n> B′>B> K。【结论】从适用性、简便性和统计正确性等方面综合分析,应用Le Cren相对条件因子K_n作为肥满度指数的系统性误差最小,准确度最高,可作为罗氏沼虾肥满度的首选指数。

关键词(KeyWords)： 罗氏沼虾;肥满度指数;Fulton条件因子;Le Cren相对条件因子;Jones条件因子;Richter条件因子

Abstract:

Keywords:

基金项目(Foundation): 上海市虾类产业技术体系建设项目[沪农科产字(2014)第5号]

作者(Author): 杨明,丁福江

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