The study of the bottom biota of the Kara Sea has been going on for over 100 years. Since the 1990s, the interest to ecosystems of the Sea has increased due to the growth of anthropogenic impact, namely, the intensification of the oil and gas field development in the shelf zone. Up to date, the recent survey is the most detailed and extensive investigation of the macrobenthos (for the entire observation period) in the southwestern Kara Sea. Macrobenthic distribution was assessed at 119 stations at depths ranging from 4 to 415 m in August–September 2012–2013. The results obtained allow suggesting the absence of serious changes in macrobenthos structure in the study area for last 80–90 years. Despite the differences in sampling methods and data processing, the main trends noted in the macrobenthic distribution in 2012–2013 were similar to those noted before. The identified abiotic factors most significant for distribution of benthic organisms - salinity, depth, sediment characteristics - were the same as reported in previous researches. Apparently, the state of macrobenthos in the study area at the beginning of the 21st century was close to the long-term norm. The presented data can be used as a reference point when tracking future ecosystem changes and possible consequences of anthropogenic and natural impacts.

对喀拉海底部生物群的研究已经进行了 100 多年。自 1990 年代以来，由于人为影响的增加，即陆架区油气田开发的加剧，人们对海洋生态系统的兴趣增加。近期的调查是迄今为止喀拉海西南部大型底栖动物（整个观测期）最详细、最广泛的调查。2012 年 8 月至 2013 年 9 月，在 4 至 415 m 深度的 119 个站点评估了大型底栖动物分布。获得的结果表明，在过去的 80-90 年中，研究区的大型底栖动物结构没有发生严重变化。尽管在抽样方法和数据处理方面存在差异，2012-2013 年大型底栖动物分布的主要趋势与之前提到的趋势相似。已确定的对底栖生物分布最重要的非生物因素 - 盐度、深度、沉积物特征 - 与先前研究报告的相同。可见，21世纪初研究区大型底栖动物的状况已接近长期常态。所提供的数据可用作跟踪未来生态系统变化以及人为和自然影响的可能后果时的参考点。21世纪初研究区大型底栖动物的状况接近长期常态。所提供的数据可用作跟踪未来生态系统变化以及人为和自然影响的可能后果时的参考点。21世纪初研究区大型底栖动物的状况接近长期常态。所提供的数据可用作跟踪未来生态系统变化以及人为和自然影响的可能后果时的参考点。