Stasiukynas Laurynas, Laurindo da Silva Fabio, Havelka Jekaterina, Podėnas Sigitas, Lekoveckaitė Aistė
Vilnius University, Life Sciences Center, Vilnius, Lithuania Vilnius University, Life Sciences Center Vilnius Lithuania.
Universidade de São Paulo, São Paulo, Brazil Universidade de São Paulo São Paulo Brazil.
Biodivers Data J. 2024 Nov 8;12:e130218. doi: 10.3897/BDJ.12.e130218. eCollection 2024.
Chironomidae, commonly known as non-biting midges, are key indicators of the health and biodiversity of freshwater ecosystems. They are also one of the most abundant and diverse groups of aquatic invertebrates. Although Chironomidae are ecologically important, abundant and diverse, there has been limited focused research on this group in Lithuania. Our study addresses this gap by analysing the diversity of Chironomidae in six Lithuanian streams.
In this study, we present a comprehensive list of Chironomidae collected from six streams with similar hydrological characteristics: three dammed and three undammed. Lithuania is home to 158 species of known species of Chironomidae, comprised of 22 species in the subfamily Tanypodinae, 87 in the Chironominae, 42 in the Orthocladiinae, four in the Diamesinae and three in the Prodiamesinae. Throughout our research, we collected 11,296 chironomid specimens using a D-shaped aquatic net. Amongst these specimens, we identified 89 species representing 65 genera and five subfamilies, including 37 species and 12 genera, were recorded for the first time in Lithuania. The subfamily Chironominae, with 28 genera and 6,816 specimens, has exhibited the highest abundance of non-biting midges both in terms of genera and individuals. Amongst the streams investigated, the Luknelė was the richest in diversity, harbouring 37 genera and 2,657 individuals, accounting for about 55% of the Chironomidae genera found during the research. Our findings significantly enhance the understanding of the Lithuanian Chironomidae fauna, marking the first comprehensive study of such a kind, as previous knowledge of this fauna has been derived only from related studies.
摇蚊科，通常被称为非吸血蠓，是淡水生态系统健康和生物多样性的关键指标。它们也是水生无脊椎动物中数量最多、种类最丰富的群体之一。尽管摇蚊科在生态上很重要，数量众多且种类多样，但立陶宛对这一群体的针对性研究有限。我们的研究通过分析立陶宛六条溪流中摇蚊科的多样性来填补这一空白。
在本研究中，我们列出了从六条水文特征相似的溪流中采集到的摇蚊科的完整清单：三条筑坝溪流和三条未筑坝溪流。立陶宛已知有158种摇蚊科物种，其中包括坦蜉亚科22种、摇蚊亚科87种、直突摇蚊亚科42种、直脉摇蚊亚科4种和原直脉摇蚊亚科3种。在整个研究过程中，我们使用D形水生网收集了11296个摇蚊标本。在这些标本中，我们鉴定出了89种，代表65个属和五个亚科，其中37种和12个属是在立陶宛首次记录到的。摇蚊亚科有28个属和6816个标本，无论是属还是个体数量，都显示出非吸血蠓的丰度最高。在所调查的溪流中，卢克内莱溪的多样性最为丰富，有37个属和2657个个体，约占研究期间发现的摇蚊科属的55%。我们的研究结果显著增进了对立陶宛摇蚊科动物群的了解，这是此类首次全面研究，因为此前关于该动物群的知识仅来自相关研究。
