Copepod communities were studied along an east-west transect in the oligotrophic Southern Adriatic Sea. This dynamic region is under the influence of various physical forces, including winter vertical convection, lateral exchanges between coastal and open sea waters, and ingression of water masses of different properties all of which occurred during the investigation periods. Depth-stratified samples were taken with a Nansen net (250 µm mesh size) in pre- and post-winter conditions in 2015/2016. In December, the coastal copepod community was limited over the western flank, while epipelagic waters of the open and eastern waters were characterized by high diversity, low abundances in the central area, and subsurface/upper mesopelagic copepod species. In April, higher abundances were recorded over the entire vertical profile with the surface coastal copepod community present through the entire transect. Higher abundances in the central area during the post-winter period are probably a consequence of late-winter/early spring blooms near the center of the Southern Adriatic. Mesopelagic fauna of both months was characterized by high abundances of Haloptilus longicornis, characteristic species of the eastern Mediterranean, whose larger presence was favored by the cyclonic phase of the North Ionian Gyre and a consequent strong Levantine Intermediate Water ingression.

中文翻译：

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南部亚得里亚海（东北地中海）冬季前后的足足类群落结构

在贫营养的南亚得里亚海沿东西向样带研究了足类群落。这个动态区域受到各种物理力的影响，包括冬季垂直对流，沿海和公海之间的横向交换以及在研究期间发生的所有不同性质的水团的侵入。在2015/2016年冬季前后，使用Nansen网（250 µm筛孔尺寸）采集深度分层的样品。12月，沿海the足类群落在西部侧翼受到限制，而开放水域和东部水域的上层水域的特点是多样性高，中部地区的丰度低，以及中/上中生co足co足类物种。在四月份，在整个垂直剖面上记录到较高的丰度，整个沿海样带都存在表层沿海co足类群落。冬季结束后中部地区的丰度较高，可能是南亚得里亚海中心附近的冬末/春早开花的结果。两个月的中古生境动物群的特征是高丰度Haloptilus longicornis是地中海东部的特有物种，北爱奥尼亚回旋带的气旋期和随之而来的黎凡特中度强水侵入使它们的存在更为广泛。