The survival and establishment of alien fishes in novel environments can result in resource partitioning with native fishes. This can cause ecological impact and suppression of native populations. However, quantifying the impact of novel interactions between alien and native species remains highly challenging in the wild. Consequently, to determine the ecological risk of Lepomis gibbosus in case of introduction to a small stream, experimental approach was used to predict its competitive interaction with a poorly studied endemic fish, Capoeta aydinensis. The aim was to test whether L. gibbosus has an adverse effect on native species using an experimental design under allopatric and sympatric context with temperature regimes of 15 and 24ºC. The results indicated that temperature and fish proportion had effects on the growth of C. aydinensis while these factors were not important for L. gibbosus. These results provided little evidence of L. gibbosus presence being detrimental for endemic C. aydinensis, but nevertheless steps should be taken to avoid their further co-habitation in the wild.

中文翻译：

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如果引入小溪流，非本地南瓜籽 Lepomis gibbosus 是否会影响地方性刮藻 Capoeta aydinensis？异地生长实验

外来鱼类在新环境中的生存和建立会导致资源与本地鱼类的分割。这可能会导致生态影响和对本地人口的压制。然而，量化外来物种和本地物种之间新相互作用的影响在野外仍然极具挑战性。因此，为了确定Lepomis gibbosus在引入小溪流的情况下的生态风险，使用实验方法来预测其与研究不足的特有鱼类Capoeta aydinensis的竞争性相互作用。目的是测试L是否。 长臂猿使用在异域和同域环境下的实验设计，温度范围为 15 和 24ºC，对本地物种产生不利影响。结果表明，温度和鱼的比例对C的生长有影响。 aydinensis而这些因素对L并不重要。 长臂猿。这些结果几乎没有提供L的证据。 长臂猿的存在对地方性C有害。 aydinensis，但仍应采取措施避免它们在野外进一步同居。