Abstract—

Naturalization of the invasive copepod Oithona davisae is examined based on long-term (2003–2014) routine observations of zooplankton in Sevastopol Bay (the Black Sea). The study analyzes inter-annual and seasonal variability of the species and their impact on the native copepod community. The invasion of O. davisae and their undoubted dominance in terms of abundance have been shown to alter the community structure, while not causing a decline in abundance of native species, except the earlier Black Sea invader Acartia tonsa. A significant decline in A. tonsa numbers over the phases of establishment and naturalization of O. davisae indicates competition between the species. It has been demonstrated that O. davisae have gained a competitive advantage over A. tonsa, which ensured the rapid spread of the former across the Black Sea, acclimatization to the new habitat, and successful competition over native species.

中文翻译：

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Oithona davisae：黑海中的归化，年际和季节动态以及对浮游Co足类群落结构的影响

摘要—

根据塞瓦斯托波尔湾（黑海）浮游动物的长期（2003-2014年）常规观察结果，研究了入侵的pe足类拟南芥的归化。该研究分析了该物种的年际和季节变异性及其对当地the足类群落的影响。业已证明，对O. davisae的入侵及其在丰度方面的绝对优势可改变群落结构，但不会引起本地物种的丰度下降，除了较早的黑海入侵者Acartiatonsa。在一个显著下跌A. tonsa数超过建立和入籍的阶段O. davisae指示物种之间的竞争。已经证明O. davisae已经获得了竞争优势A. tonsa，保证整个黑海前者的迅速蔓延，适应新的栖息地，并在当地物种竞争成功。