| 摘要: |
| 浮游端足类??亚目(Amphipoda-Hyperiidea)是海洋浮游甲壳动物中比较重要的类别之一，它们不但常见而且是经济鱼类的良好饵料。有关此类海洋浮游动物的垂直分布，国外学者有较多研究结果发表，如Thurston (1976)和Shulenberger (1977)曾经分别作过较为详细的报道；国内学者也曾作过零星报道(李冠国、黄世玫，1964；郑重、郑执中等，1965 ；陈清潮等，1978)。
本文研究材料是中国科学院海洋研究所1978年5月底至7月初在东海的几个断面上(123°一129°E，26°30′－32°30′N)，用大型浮游生物网采得的78 号垂直分层(0一50m, 50-100m, 100-250m, 250-500m, 500-1000m, 1000-2000m)样品。作者对样品中的端足类??亚目逐层分类计数，初步分析了其种数、总量及主要种的垂直分布特征，为今后进行浮游生物生态研究提供必要的参考资料。 |
| 关键词: 东海、浮游端足类、𧊕亚目、垂直分布 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所调查研究报告第1499号 |
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| THE VERTICAL DISTRIBUTION OF AMPHIPODA HYPERllDEA IN THE EAST CHINA SEA |
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Lin Minyu
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Institute of Oceanology, Academia Sinica
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| Abstract: |
| This study, based on 78 vertical haul plankton samples collected by the Institute of Oceanology, Academia Sinica, from the end of May to early July, 1978, in the East China Sea (26°30′一32°30′N, 123°一129°E) is aimed at gaining some understanding of the vertical distribution of Amphipoda Hyperiidea. Vertical hauls were made with a 2.7 m long, 0.5 m2 ringnet (with mouth diameter of 0.80 m, 36 GG grit gauze with aperture width of 0.53 mm) at 0-50 m, 50-100 m, 100-250 m, 250-500 m, 500-1000 m, and 1000-2000 m. Nine hundred and eighty-nine hyperiid specimens belonging to 42 species were counted, the majority of which are widely distributed, warm water species. Lestrigonus schizogeneios (Stebbing), L.macrophthalmus (Vosseler), L. latissimus (Bovallius), Primno macropa Guerin, Eupronoe maculata Claus, E. minuta Claus, and Hyperioides longipes Chevreux, are the more commonly occurring and abundant species, making up 70.8% of the total hyperiid specimens. They are most abundantly distributed in the 0-100 m layer, making up 83.3% ( 43.6% in the 0-50 m layer and 39.7% in the 50-100 m layer). Different species seem to prefer certain water layers and have different ranges of vertical distribution. The vertical distribution pattern of the above-mentioned seven dominant species are discussed in detail. |
| Key words: VERTICAL DISTRIBUTION,AMPHIPODA HYPERllDEA , EAST CHINA SEA |
