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首页> 外文期刊>Cahiers de Biologie Marine >Invasion of polluted soft substratum of Izmir Bay (Aegean Sea, eastern Mediterranean) by the spionid polychaete worm, Pseudopolydora paucibranchiata (Polychaeta : Spionidae)
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Invasion of polluted soft substratum of Izmir Bay (Aegean Sea, eastern Mediterranean) by the spionid polychaete worm, Pseudopolydora paucibranchiata (Polychaeta : Spionidae)

机译：假性多毛蠕虫Pseudopolydora paucibranchiata（Polychaeta：Spionidae）对伊兹密尔湾（爱琴海，地中海东部）被污染的软基底的入侵

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摘要

The present study reports the first occurrence of an alien spionid polychete worm, Pseudopolydora paucibranchiata Okuda 1937, in the Mediterranean Sea. This species, which was previously identified as P. antennata Claparede, 1870, formed a dense population in and near Alsancak Harbor (Izmir Bay, Aegean Sea), especially in June 2004. It was also found at some stations in Iskenderun and Mersin Bays in September 2005 (Levantine Sea). The maximum density and biomass (wet weight: ww) of P. paucibranchiata in Izmir Bay were 6180 ind center dot m(-2) and 4.77 g WWt center dot m(-2), respectively. The seasonal fluctuations of density and biomass of the species were studied in Izmir Bay, indicating that its density and biomass values increased in spring and summer, and drastically diminished in fall and winter. This species is able to reproduce in the area both in winter, spring and summer. Its establishment in the area is most probably transport by ballast water. The morphological, ecological and distributional characteristics of the species as well as its impact on the prevailing ecosystem are analyzed and discussed.
机译：本研究报告了在地中海首次出现外来的带孢子的多壳线虫蠕虫，Pseudopolydora paucibranchiata Okuda 1937。早在1870年，该物种就被确定为P.enna ta Claparede，在Alsancak港（爱琴海伊兹密尔湾）及其附近形成了一个密集的种群，特别是在2004年6月。 2005年9月（黎凡特海）。伊兹密尔湾的pa。paucibranchiata的最大密度和生物量（湿重：ww）分别为6180 ind中心点m（-2）和4.77 g WWt中心点m（-2）。在伊兹密尔湾研究了该物种密度和生物量的季节性波动，这表明该物种的密度和生物量值在春季和夏季有所增加，而在秋季和冬季则急剧减少。该物种能够在冬季，春季和夏季在该地区繁殖。它在该地区的建立极有可能是通过压载水运输。分析和讨论了该物种的形态，生态和分布特征及其对主要生态系统的影响。

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