【摘要】 冬季,强劲的北风将中国和朝鲜沿岸的表层水由北向南吹送,从而驱动了作为补偿的沿黄海水槽北上的黄海暖流。黄海暖流从东海向南黄海输送高温高盐水,从而大大改变了冬季南黄海的浮游动物群落结构。同样,浮游动物的分布也可以作为黄海暖流的指示。为了解浮游动物暖水种分布与黄海暖流的关系,2001年11月末冬季季风开始之后,在南黄海进行了浮游动物样品的收集。共鉴定71种浮游动物。其中39种为热带种,占54.9%,比夏季发现的要多的多。在这些热带种当中有不少是黑潮水的典型种,如:Eucalanussubtenuis,Rhincalanuscornutus,Pareuchaetarusselli,Lucicutiaflavicornis和Euphausiadiomedeae等。26种为暖温带种,占36.6%。6种为温带种,占8.5%。尽管如此,浮游动物群落中仍以温带种和暖温带种占优势。Calanussinicus是绝对的优势种(优势度为0.4331)。暖水种的分布格局清楚地显示,黄海暖流是从表层之下沿黄海水槽向北进入黄海的。从暖水种的水平分布看,黄海暖流所能到达的北限大致在35～36°N。暖水种的断面分布显示,暖水的入侵主要发生在中层。夏季,在黄海也可以发现许多暖水种,但种类数量远不如冬季多,而且少有黑潮水的典型种。夏季它们在黄海的出现主要是由于水温升高、分布范围扩展所至,并非暖流的输送。更多还原

【Abstract】 In winter, strong north wind drives southward flow at the surface along both Korean and Chinese coasts, which is compensated by a northward flow along the Yellow Sea Trough and known as the Yellow Sea Warm Current (YSWC). It advects warmer and saltier water from the East China Sea into the Southern Yellow Sea and changes the zooplankton community structure greatly in winter. And the distribution of zooplankton can also be used as bioindication of the YSWC. To see the warm water species distribution in related to the YSWC, plankton samples were collected in November 2001 in the Southern Yellow Sea after the onset of the winter monsoon. 71 zooplankton species were identified, among which 39 species were tropical, accounting for 54.9%, much more than that found in summer. Many of them were typical for Kuroshio water, eg. Eucalanus subtenuis, Rhincalanus cornutus, Pareuchaeta russelli,Lucicutia flavicornis,and Euphausia diomedeae etc. 26 species were warmtemperate accounting for 36.6% and 6 temperate 8.5%. However the zooplankton community was still dominated by temperate and warmtemperate species. Calanus sinicus was the overwhelming dominant one (dominance=0.4331). The distribution pattern of the warm water species shows clearly that the YSWC flows beneath the surface northwards into the Yellow Sea along the Yellow Sea trough. The north limit to what the YSWC can penetrate was about 35-36°N judging from the horizontal distribution of the warm water species. The vertical profiles of the warm water species show that the intrusion of the warm water took place mainly in the middle layer. In summer warm water species can also be found in the Yellow Sea but the diversity was much less than that in winter and short of typical species for Kuroshio water. The appearance of warm water species in summer in the Yellow Sea would be a consequence of the expansion of their distribution area in response to the warm up of water temperature rather than the transportation by warm current. 更多还原