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首页> 外文期刊>Zoology and Ecology >First record of the European hake (Merluccius merluccius (Linnaeus, 1758): Actinopterygii: Gadiformes: Merlucciidae) in the coastal zone of Lithuania (southeastern Baltic Sea: eastern Gotland basin)
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First record of the European hake (Merluccius merluccius (Linnaeus, 1758): Actinopterygii: Gadiformes: Merlucciidae) in the coastal zone of Lithuania (southeastern Baltic Sea: eastern Gotland basin)

机译：欧洲鳕鱼的第一次记录（Merluccius Merluccius（Linnaeus，1758）：Actinopterygii：Gadiformes：Merlucciidae）在立陶宛沿海地区（东南波罗的海：东达地盆地东南部）

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摘要

On 10 September 2015, a specimen of the European Hake (Merluccius merluccius Linnaeus, 1758). It is the first documented report on this boreal-subtropic, benthopelagic fish in the brakish water area of the southeastern part of the Baltic Sea. The fishwas caught during the hydrological autumn, before the disappearance of the seasonal thermocline near Sventoji.The fish assemblage was dominated by seasonally prevalent marine and freshwater straggler fishes. The total length (TL) of the specimen was 51.3 cm, and weight 901.75 g. It was a 3.5-4-year-old male fish with its ogives in maturity stage III. A roundworm Contracaecum acus (Rudolphi, 1809) was detected in its intestine. Remains of Bylgides sarsi were found in the gut. The specimen was caught after the Major Baltic Inflow in December 2014. This marine fish entered the semiclosed low-salinity zone, which is beyond the optimal feeding and reproduction area in the North Sea, indicating spatial and temporal connections between the two seas. A distributional shift of rare marine fishes, which was evidenced by their more frequent catches in 2015-2016. Straggler fishes are distinguished from native species by the presence of translocated Trematoda and Nematoda that are characteristic of higher salinity waters.
机译：2015年9月10日，欧洲鳕鱼（Merluccius Merluccius Linnaeus，1758）。它是波罗的海东南部的Brakish水域的第一个关于这家博尔马尔 - 亚热带的底栖鱼类的报告。在水文秋季捕获的鱼类在Sventoji附近的季节性热水管道消失之前。鱼群由季节性普遍存在的海洋和淡水孤立的鱼类占主导地位。样品的总长度（T1）为51.3厘米，重量为901.75克。这是一个3.5-4岁的男性鱼类，其在成熟阶段III中的ogives。在其肠道中检测到蛔虫凝视症（Rudolphi，1809）。在肠道中发现了Bylgides Sarsi的遗骸。在2014年12月的主要波罗的海流入之后，该样本被捕获。这家海洋鱼进入了半圆的低盐度，超出了北海的最佳喂养和再生区域，表明了两个海之间的空间和时间连接。罕见的海洋鱼类的分布转移，2015 - 2016年他们更频繁的渔获量证明了。斯特拉格勒鱼类通过存在于具有高盐度的特征的易位的Trematoda和Nematoda，与本地物种区别于。

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