【摘要】 <正> 黄海位于中国大陆与朝鲜半岛之间,南以长江口北岸的海门嘴到朝鲜济州岛一线与东海为界,最北到鸭绿江口,形成一个半封闭式的海区。渤海是中国的内海,可以认为是黄海的一个大海湾;从海藻区系角度看来,渤海也是黄海的一部分。因此,本文所讨论的黄海西部海藻区系也包括了渤海的种类。 本文的目的是通过分析研究,了解这个区系的温度性质。在进行这项工作之前,我们先针对着邻近海区海藻区系的区划和海藻区系的分析方法等问题进行了研究,并提出了一些初步看法。更多还原

【Abstract】 A historical survey of the various reports relating to the marine algae of the Chinese coastal region of the Western Yellow Sea, including the Po-hai (Gulf of Pe-chi-li) showed that prior to 1949, among the species recorded for this region, there were somewhat less than 100 species which could be accepted, the rest being synonyms or erroneous determination. Since 1949, systematic surveys and studies of the marine flora of this region have been made, and at present the coastal marine algae flora consists of 48 Cyanophyta, 45 Chlorophyta,1 Xanthophyta, 52 Phaeophyta and 96 Rhodophyta, totalling at 242 species.Among these species, there are 76 rather inconspicuous species, including besides the blue-green algae, also 28 microscopic algae, the presence of which can be revealed only under microscopic examinations! These algae are riot always dealt with in the neighbouring regional floras, and. thus their geographical distribution in the Western North Pacific is difficult to delineate. Of the remaining 166 macroscopic species, there are 82 species which are rather rarely or uncommonly met with in the region under discussion and are regarded to be of small value in the analytical study of the temperature nature of the flora. Therefore, the present study was based principally on the analysis of the remaining 84 species, including 41 dominant species, 29 common species and 14 locally abundant species which are regarded as representatives of the regional marine algal flora.A method has been devised for the analysis of the temperature nature of the marine algae by studying herbarium specimens and field data, provided if there were available, specimens of the same species collected in different months and seasons in the same locality. The present study was based principally on the specimens collected at Qingdao (Tsingtao), and to a lesser extent those at Dalian (Dairen). We found that it is possible by analytical studies of the specimens together with their field data, to find out the best period of growth and reproduction for the species concerned; the average surface sea water temperature of Qingdao or Dalian at the particular period (month or season) may then be taken as representative of the temperature of the best growth and reproduction of the species concerned.The study showed that among the species thus analyzed, there are 5 cold water species, all being lower boreal (6% of the total), 61 temperate water species (73%), including 25 cold temperate and 36 warm temperate species, and 18 warm water species, all being subtropical (21%). It is therefore concluded that the marine algal flora of the Western Yellow Sea coast is temperate in nature, being proportionately more warm temperate than cold temperate.更多还原