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首页> 外文期刊>Croatian Journal of Fisheries >Long-Term Trends in the Structure and Dynamics of the Fish Communities in Bu?ko Blato Reservoir
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Long-Term Trends in the Structure and Dynamics of the Fish Communities in Bu?ko Blato Reservoir

机译：Bu的鱼群结构和动力学的长期趋势

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摘要

Bu?ko Blato Reservoir, the third largest hydro accumulation in Europe, is situated in the south-eastern part of the karstic Livanjsko Polje Valley. This aquatic ecosystem is distinguished by a very rich ichthyofauna and the presence of four endemic fish species. Numerous studies focus on ichthyological researches of Bu?ko Blato Reservoir. Its ichthyofauna has been exposed to changes in ecological factors, which in turn reflected on the structure and composition of fish populations. The main objective of this paper was to assess the current state and predict future trends in the ichthyofauna structure and dynamics based on the field data and comprehensive analyses of literature data. The results of the research indicated the presence of 11 fish species from four families, which is the largest number of fish species ever recorded in this ecosystem. Sander lucioperca , Lepomis gibbosus , Pseudorasbora parva and Tinca tinca were recorded for the first time in this ecosystem, while some previously recorded species were not found. The results of the analyses clearly indicate the presence of natural interspecific competition and significant level of threats to the endemic fish species caused by human activities.
机译：Bu？Ko Blato水库是欧洲第三大水中积累，位于喀斯特里奇Livanjsko Polje Valley的东南部。这种水生生态系统是一个非常丰富的Ichthyofauna和四种地方鱼类的存在。众多研究侧重于Bu→Ko Blato水库的清查学研究。它的ICHThyofauna已经暴露于生态因素的变化，反过来反映了鱼群的结构和组成。本文的主要目标是评估当前的国家，并根据文献数据的综合分析，预测ICHThyofauna结构和动态的未来趋势。研究结果表明，来自四个家庭的11种鱼类的存在，这是该生态系统中有史以来最多的鱼类数量。在这个生态系统中，第一次记录桑德卢西卡，Lepomis Gibbosus，Pseudorasbora Parva和Tinca Tinca，但没有发现一些先前录制的物种。分析结果清楚地表明存在自然间隙竞争以及对人类活动引起的地方性鱼类的显着威胁。

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