Taxonomic identification and abundance distribution of fritillarians in the northwest continental shelf of South China Sea

LI Kai-zhi; YIN Jian-qiang; HUANG Liang-min; CHEN Qing-chao; LIN Qiang

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LI Kai-zhi, YIN Jian-qiang, HUANG Liang-min, CHEN Qing-chao, LIN Qiang. Taxonomic identification and abundance distribution of fritillarians in the northwest continental shelf of South China Sea[J]. Haiyang Xuebao, 2010, 32(5): 76-86.

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Taxonomic identification and abundance distribution of fritillarians in the northwest continental shelf of South China Sea

1.
Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanograpy, State O
2.
Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China

Received Date: 2010-02-27

Abstract

Abstract

Fritillarians, known as an important group of tunicates, played a crucial role in marine food web.A total of 8 species of fritillarians were collected (Fritillaria aberrens, F.abjornseni, F.formica, F.haplostoma, F.megachile, F.pacifica, F.pellucida, F.tenella) based on the data obtained from three cruises carried out in the summer and winter of 2006 and the spring of 2007 using planktonic net (mesh size: 169 μm).Fritillaria aberrens, F.abjornseni and F.pacifica were first records for waters of the South China Sea.7, 3 and 4 species occurred in summer, winter and spring and their abundance were(2.62±4.68),(0.23±0.52) and(1.72±5.43) ind/m³, respectively.The most frequent and abundant species was F.formica, accounting for 43.88%, 80.18% and 84.29% of total abundance in summer, winter and spring, followed by F.pellucida and F.haplostoma.Coastal upwelling and cyclonic circulation might push the fritillarians into coastal waters and enhanced their abundance.
- Appendicularia,
- Fritillariidae,
- taxonomy,
- abundance,
- South China Sea

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