Centro de Investigación y Tecnología del Instituto Nacional de Investigaciones Agrarias (CIT-INIA), Valdeolmos, Madrid, Spain.
Environ Monit Assess. 1993 Jan;24(1):71-90. doi: 10.1007/BF00568800.
Relationships between natural macrobenthic communities and aquatic environmental conditions have been recently used to perform the Biological Monitoring Water Quality (BMWQ) score system for assessing freshwater quality in the Iberian Peninsula. In this paper, the second version of the BMWQ score system is applied to two selected field studies (organic and nonorganic pollution) in order to illustrate the suitable functional character of this method. The total BMWQ (t-BMWQ) score and the average BMWQ (a-BMWQ) score are calculated, and their relationships with diversity indices are also examined. The BMWQ method appears to be very sensitive to changes in freshwater quality generated by simple organic pollution, but this method appears to be less sensitive to changes generated by complex nonorganic pollution. In addition, both scores are more sensitive measures to assess macroinvertebrate response to organic pollution than total density and diversity indices, exhibiting higher positive coefficients of linear correlation with Camargo's diversity index than with Shannon's and MacArthur's diversity indices. However, the a-BMWQ score is more sensitive to changes in family composition than the t-BMWQ score, whereas this latter score is more sensitive to family richness and sample size. In this sense, the use of the a-BMWQ score is recommended for the biological assessment of freshwater quality degradation in the Iberian Peninsula. More information is obtained for less effort when the a-BMWQ score is used.
最近，人们利用自然大型底栖动物群落与水生环境条件之间的关系，来对伊比利亚半岛的淡水水质进行生物监测水质（BMWQ）评分系统评估。在本文中，应用了 BMWQ 评分系统的第二版，对两个选定的野外研究（有机和无机污染）进行了说明，以说明该方法的适当功能特性。计算了总 BMWQ（t-BMWQ）评分和平均 BMWQ（a-BMWQ）评分，并研究了它们与多样性指数的关系。BMWQ 方法似乎对由简单有机污染引起的淡水水质变化非常敏感，但该方法对由复杂无机污染引起的变化似乎不太敏感。此外，这两个评分都比总密度和多样性指数更能敏感地评估大型无脊椎动物对有机污染的反应，与 Camargo 的多样性指数的线性相关系数高于 Shannon 和 MacArthur 的多样性指数。然而，a-BMWQ 评分比 t-BMWQ 评分更能敏感地反映家族组成的变化，而后者评分则更能敏感地反映家族丰富度和样本量。从这个意义上说，建议在伊比利亚半岛使用 a-BMWQ 评分来评估淡水水质退化的生物评估。使用 a-BMWQ 评分可以获得更多的信息，而付出的努力却更少。
