We present results of a large-scale study of potentially predatory journals (PPJ) represented in the Scopus database, which is widely used for research evaluation. Both journal metrics and country/disciplinary data have been evaluated for different groups of PPJ: those listed by Jeffrey Beall and those discontinued by Scopus because of “publication concerns”. Our results show that even after years of discontinuing, hundreds of active potentially predatory journals are still highly visible in the Scopus database. PPJ papers are continuously produced by all major countries, but with different prevalence. Most all science journal classification subject areas are affected. The largest number of PPJ papers are in engineering and medicine. On average, PPJ have much lower citation metrics than other Scopus-indexed journals. We conclude with a survey of the case of Russia and Kazakhstan where the share of PPJ papers in 2016 amounted to almost a half of all Kazakhstan papers in Scopus. Our data suggest a relation between PPJ prevalence and national research evaluation policies. As such policies become more widespread, the expansion of potentially predatory journal research will be increasingly important.

我们展示了对潜在掠夺性期刊的大规模研究结果（PPJ）代表在Scopus数据库中，该数据库广泛用于研究评估。已针对PPJ的不同组对期刊指标和国家/学科数据进行了评估：Jeffrey Beall列出的期刊和Scopus出于“出版关注”而停刊的期刊。我们的结果表明，即使在中断多年后，Scopus数据库中仍会高度可见数百种活跃的潜在掠夺性期刊。PPJ纸在所有主要国家/地区都在不断生产，但流行程度不同。大多数科学期刊分类主题领域都受到影响。PPJ论文数量最多的是工程和医学领域。平均而言，PPJ的引用指标比其他Scopus索引期刊低得多。我们以俄罗斯和哈萨克斯坦为例进行了调查，2016年PPJ论文的份额几乎占Scopus所有哈萨克斯坦论文的一半。我们的数据表明PPJ患病率与国家研究评估政策之间存在关联。随着此类政策的日益普及，潜在掠夺性期刊研究的扩展将变得越来越重要。