In spite of the obvious climate changes effects on the Carpathian Basin hydrographic nets fish fauna, studies on their potential refuge habitats in drought periods are scarce. Multiannual (2016–2021) research of fish in some streams located in the Saxon Villages area during hydrological drought periods identified, mapped, and revealed the refuge aquatic habitats presence, management needs, and importance for fish diversity and abundance for small rivers. The impact of increasing global temperature and other human activities induced hydrologic net and habitats alteration, decreased the refuge habitats needed by freshwater fish, diminished the fish abundance, and influenced the spatial and temporal variation in fish assemblage structure in the studied area. The sites more than one meter in depth in the studied lotic system were inventoried and all 500 m of these lotic systems were also checked to see what species and how many individuals were present, and if there is was difference in their abundance between refuge and non-refuge 500 m sectors. The scarce number of these refuges due to relatively high soil erosion and clogging in those basins and the cumulative effects of other human types of impact induced a high degree of pressure on the fish fauna. Overall, it reduced the role of these lotic systems as a refuge and for reproduction for the fish of downstream Târnava Mare River, into which all of them flow. Management elements were proposed to maintain and improve these refuges’ ecological support capacity.

中文翻译：

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撒克逊村庄地区季节性水文干旱期间鱼类水生保护区的作用以及气候变化和人类影响背景下的威胁（罗马尼亚特兰西瓦尼亚）

尽管 由于气候变化对喀尔巴阡盆地水文网鱼类群的明显影响，对其在干旱时期潜在避难栖息地的研究很少。多年（2016-2021 年）在水文干旱期间对撒克逊村庄地区一些溪流中的鱼类进行的研究确定、绘制并揭示了避难所水生栖息地的存在、管理需求以及对小河流鱼类多样性和丰度的重要性。全球气温升高和其他人类活动的影响引起水文网和生境的改变，减少了淡水鱼类所需的避难生境，减少了鱼类的丰度，并影响了研究区鱼类组合结构的时空变化。对所研究的激流系统中深度超过 1 米的地点进行了清点，并且还检查了所有 500 m 的这些激流系统，以查看存在哪些物种和多少个体，以及它们在避难所和非保护区之间的丰度是否存在差异- 避难 500 m 扇区。由于这些盆地中相对较高的土壤侵蚀和堵塞以及其他人类类型影响的累积影响，这些避难所的数量稀少，对鱼类群造成了高度压力。总体而言，它降低了这些浸水系统作为下游 Târnava Mare 河鱼类的避难所和繁殖的作用，所有鱼类都流入其中。提出了管理要素，以维持和提高这些避难所的生态支持能力。