极地研究

极地研究 ›› 1993, Vol. 5 ›› Issue (3): 27-39.

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南极长城湾的领鞭毛类

陈波   

  • 出版日期:1993-09-30 发布日期:1993-09-30

CHOANOFLAGELLATES FROM GREAT WALL BAY,ANTARCTICA

  • Online:1993-09-30 Published:1993-09-30

PDF (PC)

1115

被引次数

2

摘要：

本文首次报道发现于南极长城湾夏季异养微型浮游生物的主要类群——领鞭毛类(choanoflagellates),共记录7个属的11个种,通过扫描电镜详细观察了每个种的形态及其结构特征,并讨论了每个种在世界各海洋水域中的地理分布。11个种是:Acanthocorbis unguiculata,Bicosta spinierra, Calliacantha natans, C. simplex, Crinolina aperta, Diaphanoeca multiannulata, D.pedicellata, Parvicorbicula circularis, P. socialis, Pleurasiga orculaeformis aff.和Pleurasiga sp., 其中P. orculaeformis aff. 首次在南极水域中记录到。D.multiannulata仅限于南极水域中分布,除了D.multiannulata和Pleurasiga sp., 其余9种为世界性广布种。在长城湾,B. spinifera, C. aperta,D. multiannulata和P. circularis为夏季优势种。

关键词: 南极;长城湾;领鞭毛类

Abstract:

The present study was the first report on the major taxa of Antarctic heterotrophic nanoplankton-choanoflagellates(Acanthoecidae) from Great Wall Bay, Antarctica in austral summer. Eleven species of seven genera of choanoflagellates were recorded. This paper showed the observation results of morphology and fine-structure of each species by SEM, as well as discussion on each species' geographical distribution in the world's waters. Eleven species were: Acanthocorbis unguicidata, Bicosta spinifera,Calliacantha natans,C. simplex, Crinolina aperta, Diaphanoeca multiannulata, D. pedicellata, Parvicorbicula circularis, P. so-cialis, Pleurasiga orculaeformis aff. and Pleurasiga sp. . P.orculaeformis aff. was the first record in Antarctic waters. D. multiannulata was limited in Antarctica. Except D. multian-nulata and Pleurasiga sp. ,other nine species were the cosmopolitan. B. spinifera,C. aperta, D. multiannulata and P. circularis were the dominant species of choanoflagellates in Great Wall Bay in austral summer.