The occurrence of the invasive nonindigenous copepod Oithona davisae Ferrari and Orsi, 1984, is reported for the first time in the Aegean Sea. The data we collected in August 2017 from 14 stations along the Turkish coast of the Aegean Sea reveal the spatial distribution of O. davisae between the openning of the Dardanelles Strait in the north and the Izmir Bay in the south. The O. davisae individuals, in seven mesozooplankton samples collected from a single station, were consistently found in the inner part of the Izmir Bay from April 2015‐October 2016. The abundance of female O. davisae ranged from 4 ind./m³ in April 2015 to 31,524 ind./m³ in July 2016 and contributed to the total oithonid female population by 10.8% in April 2015 and 92.8% in September 2016. Our results show that this species is well established in the inner part of Izmir Bay and that it has become a permanent component of the copepod community in the area.

中文翻译：

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入侵的pe足类Oithona davisae Ferrari和Orsi在1984年在爱琴海的沿海水域中的首次分布记录

1984年，爱琴海首次报道了侵袭性非pe足类pe足鱼类Oithona davisae Ferrari和Orsi的发生。我们于2017年8月从爱琴海土耳其沿岸14个站点收集的数据揭示了在北部达达尼尔海峡开放与南部伊兹密尔湾之间的戴维斯藻的空间分布。该O. davisae个人，从单站采集的7浮游动物样本中，均始终在伊兹密尔湾内部分从四月发现2015年- 2016年十月女性的丰度O. davisae从4 ind./m介于³中2015年4月至31,524工业平均价格/平方米³ 在2016年7月，该物种在2015年4月和2016年9月对雌蕊类总雌性种群的贡献率分别为10.8％和92.8％。我们的结果表明，该物种在伊兹密尔湾的内部已经建立，并且已经成为该物种的永久组成部分。该地区的足类社区。