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首页> 外文期刊>River Research and Applications >REVISION OF THE BIOLOGICAL MONITORING WORKING PARTY (BMWP) SCORE SYSTEM: DERIVATION OF PRESENT-ONLY AND ABUNDANCE-RELATED SCORES FROM FIELD DATA
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REVISION OF THE BIOLOGICAL MONITORING WORKING PARTY (BMWP) SCORE SYSTEM: DERIVATION OF PRESENT-ONLY AND ABUNDANCE-RELATED SCORES FROM FIELD DATA

机译：修订生物监测工作方（BMWP）评分系统：从现场数据中得出当前和与丰度相关的评分

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The Biological Monitoring Working Party (BMWP) score system was introduced in 1980 to provide an index of river water quality for England and Wales based on aquatic macroinvertebrates. The score allocated to each taxon was set by a group of expert river biologists on the basis of their collective experience of the taxon's sensitivity to organic pollution. This paper describes an objective reappraisal of these subjectively derived scores by the statistical analysis of a large and comprehensive database of field data. Two different methods of using biological and environmental data were evaluated as a basis for revising BMWP scores, both of which accounted for variations in site type. One method, Modified New Walley-Hawkes (MNWH), used a modified average score per taxon (MASPT) as its ranking metric and required analyses performed on separated data sets divided into three site types. The other method used the environmental quality index based on MASPT (EQI_(maspt) to provide its ranking metric. Both of these methods involved the use of modified BMWP values for Oligochaeta and Chironomidae for reasons that are explained. Following evaluation, the MNWH method was chosen to derive present-only and abundance-related scores for the BMWP taxa, 19 additional taxa mostly from the order Diptera, and 16 extra taxa resulting from the splitting of eight BMWP composite taxa. The MNWH scores were generally in keeping with those derived in an earlier study, except for a few rare taxa that were represented by few samples in that study. The UK Regulatory Authorities intend adopting a new index based on the MNWH scores, and this is given in two appendices.
机译：1980年引入了生物监测工作组（BMWP）评分系统，以基于水生大型无脊椎动物为英格兰和威尔士提供河流水质指数。分配给每个分类单元的分数是由一组专家河流生物学家根据他们对分类单元对有机污染的敏感性的集体经验确定的。本文通过对庞大而全面的现场数据数据库的统计分析描述了对这些主观得出的分数的客观重新评估。评估了两种不同的利用生物学和环境数据的方法，作为修订BMWP分数的基础，这两种方法都说明了场地类型的差异。一种方法是改良的新Walley-Hawkes（MNWH），它使用改良的每类分类平均分数（MASPT）作为其排名指标，并要求对分为三个站点类型的分离数据集进行分析。另一种方法是使用基于MASPT的环境质量指数（EQI_（maspt）来提供其排名指标。这两种方法都涉及对Oligochaeta和Chironomidae的修改后的BMWP值的使用，其原因已得到解释。选择得出BMWP分类群的仅当前和与丰度相关的分数，主要从Diptera订单中获得19个额外的分类群，以及通过分解八个BMWP复合分类群而获得16个额外的分类群。MNWH分数通常与英国监管机构打算在MNWH分数的基础上采用新的指数，该指数在两个附录中给出。

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