Department of Biology and Evolution, University of Ferrara, Via L. Borsari 46, 44100 Ferrara, Italy.
Mar Pollut Bull. 2010 Jul;60(7):1040-50. doi: 10.1016/j.marpolbul.2010.01.022. Epub 2010 Feb 26.
The potential of four benthic indices (AMBI/M-AMBI, BENTIX, BITS) was assessed in Italian coastal transitional ecosystems. The community composition showed a strong dominance of lagoonal, tolerant species, and out of more of 400 species found, only about 40 taxa were dominant. The full agreement of the four indices on an undegraded (Good or better) or degraded (Moderate or worse) status occurred only in 32.3% of stations. This study evidenced that BENTIX is inappropriate for eutrophic Adriatic lagoons, and that in such environments M-AMBI classification is actually too much dependent on diversity and richness, and seems unable to capture some peculiarities of benthic assemblages in transitional waters. AMBI and BITS gave similar classifications despite the different level of taxonomic identification needed. The unmodified use of these indices might impair accurate assessment of ecological quality status and decision-making on the managers' point of view.
本研究评估了四种底栖生物指数（AMBI/M-AMBI、BENTIX、BITS）在意大利沿海过渡生态系统中的潜力。群落组成表现出强烈的泻湖优势，耐污物种，在发现的 400 多种物种中，只有约 40 个分类群占优势。四个指数对未退化（良好或更好）或退化（中等或更差）状态的完全一致仅发生在 32.3%的站位中。本研究表明，BENTIX 不适用于富营养化的亚得里亚海泻湖，在这种环境中，M-AMBI 分类实际上过于依赖多样性和丰富度，似乎无法捕捉到过渡水域底栖生物组合的一些特点。尽管需要不同的分类鉴定水平，AMBI 和 BITS 给出了相似的分类。这些指数的未经修改的使用可能会损害对生态质量状况的准确评估和管理者角度的决策。
