Community structure and biodiversity of free-living marine nematodes in the northern South China Sea
-
摘要: 利用2010年9月在南海北部海域5个深海站位(水深313-1600m)和1个浅海站位(水深87m)采集的沉积物样品,对自由生活海洋线虫的群落结构和生物多样性及其与环境因子的关系进行了定量研究。结果表明,海洋线虫的丰度为224-1996 ind./(10 cm2)。共鉴定出海洋线虫69个属,属于26个科、3个目。SIMPER分析表明,Sabatieria、Linhystera、Aegialoalaimus和Daptonema是最优势的属。CLUSTER聚类分析将采样区域的海洋线虫群落划分为4种类型(或站组)。在营养结构方面,非选择性沉积食性者(1B)和选择性沉积食性者(1A)是最优势的营养类型,具有最高的属数和丰度,这表明有机碎屑是南海北部海域海洋线虫的主要食物来源。雄性线虫的比例较低,为2.22-17.81%,而幼体比例为36.99-82.09%。在属水平上,香农-威纳多样性指数(H')为3.76-4.57,并且与水深具有极显著的负相关。总体上,在水深大于200m的5个站位的H'值低于浅海站位(水深87m)的H'值。BIOENV分析表明,影响海洋线虫群落结构的最重要的环境因子是水深。Abstract: A quantitative study on the community structure and biodiversity of free-living marine nematodes and their relationship with environmental factors in the northern South China Sea were carried out based on the samples collected at five stations in the deep sea (from 313 to 1 600 m) and one station in shallow waters (87 m) during the cruise in September, 2010. Results showed that the abundance of marine nematodes ranged from 224 to 1 996 ind./(10 cm2). A total of 69 free-living marine nematode genera, belonging to 26 families and three orders, were identified. The most dominant genera were Sabatieria, Linhystera, Aegialoalaimus and Daptonema according to SIMPER analysis. Results of CLUSTER analysis revealed four types of marine nematode community (or station groups) in the sampling area. In terms of trophic structure, non-selective deposit feeders (1B) and selective deposit feeders (1A) were the dominant trophic types with highest genera numbers and abundances, which implied that organic detritus was the main food source of marine nematodes in the northern South China Sea. The percentage of male nematode was low, ranging from 2.22% to 17.81%, while those of juvenile individuals ranged from 36.99% to 82.09%. For genera level diversity of marine nematodes, Shannon-Wiener diversity indices (H') ranged from 3.76 to 4.57 and had highly significant negative correlation with water depth. In general, diversity indices H' at the five stations in deep sea (over 200 m) were lower than that at the station in shallow waters (87 m). BIOENV analysis showed that the most important environmental factor controlling marine nematode communities was water depth.
-
Key words:
- free-living marine nematodes /
- community structure /
- biodiversity /
- deep sea /
- northern South China Sea
-
Alkemade R, Wielemaker A, Hemminga M A. 1993. Correlation between nematode abundance and decomposition rate of Spartina anglica leaves. Marine Ecology Progress Series, 99: 293-300 Armenteros M, Ruiz-Abierno A, Fernández-Garcés R, et al. 2009. Biodiversity patterns of free-living marine nematodes in a trop-ical bay: Cienfuegos, Caribbean Sea. Estuarine, Coastal and Shelf Science, 85(2): 179-189 Boucher G, Lambshead P J D. 1995. Ecological biodiversity of marine nematodes in samples from temperate, tropical and deep-sea regions. Conservation Biology, 9(6): 1594-1604 Cai Lizhe, Fu Sujing, Yang Jie, et al. 2012. Distribution of meiofaunal abundance in relation to environmental factors in Beibu Gulf, South China Sea. Acta Oceanologica Sinica, 31(6): 92-103 Cai Lizhe, Hong Huasheng, Zou Chaozhong, et al. 2000. Studies on species composition of marine nematodes and their food types in South Taiwan Strait. Journal of Oceanography in Taiwan Strait (in Chinese), 19(2): 212-217 Clarke K R, Gorley R N. 2006. PRIMER v6: User Manual/tutorial. Ply-mouth: PRIMER-E Ltd Coull B C. 1999. Role of meiofauna in estuarine soft-bottom habitats. Australian Journal of Ecology, 24(4): 327-343 Danovaro R, Della Croce N, Petrillo M. 1999. ATIE (Atacama Trench International Expedition): evidence for extremely rich and act-ive benthic communities. Deep-Sea Newsletter, 28: 14-15 De Jesús-Navarrete A, Herrera-Gómez J. 2002. Vertical distribution and feeding types of nematodes from Chetumal Bay, Quintana Roo, Mexico. Estuaries, 25(6): 1131-1137 Du Yongfen, Xu Kuidong, Meng Zhaocui, et al. 2010. Spatial distribu-tion of meiofauna in relation to environmental factors in the South China Sea. Oceanologia et Limnologia Sinica (in Chinese), 41(2): 199-207 Ferris V R, Ferris J M. 1979. Thread worms (Nematoda). In: Hart C W Jr, Fuller S L H, eds. Pollution Ecology of Estuarine Inverteb-rates. New York: Academic Press, 1-33 Fu Sujing, Cai Lizhe, Yang Jie, et al. 2012. Spatial and seasonal vari-ations of subtidal free-living nematode assemblages in the northern Beibu Gulf, South China Sea. Journal of the Marine Biological Association of the United Kingdom, 92(2): 255-264 Gambi C, Vanreusel A, Danovaro R. 2003. Biodiversity of nematode assemblages from deep-sea sediments of the Atacama Slope and Trench (South Pacific Ocean). Deep-Sea Research Part I: Oceanographic Research Papers, 50(1): 103-117 Giere O. 2009. Meiobenthology: the Microscopic Motile Fauna of Aquatic Sediments. 2nd ed. Berlin Heidelberg: Springer Guo Yuqing, Zhang Zhinan, Mu Fanghong. 2002. Preliminary com-parative researches on the species composition of freeliving marine nematodes in different occasions in the Bohai Sea. Acta Ecologica Sinica (in Chinese), 22(10): 1622-1628 Heip C H R, Vincx M, Smol N, et al. 1982. The systematics and eco-logy of free-living marine nematodes. Helminthological Ab-stracts Series B, Plant Nematology, 51(1): 1-31 Heip C, Vincx M, Vranken G. 1985. The ecology of marine nematodes. Oceanography and Marine Biology: An Annual Review, 23: 399-489 Hopper B E, Meyers S P. 1967. Population studies on benthic nemat-odes within a subtropical seagrass community. Marine Biology, 1(2): 85-96 Huang Yong. 2012. One new free-living marine nematode species of genus Cephalanticoma from the South China Sea. Acta Ocean-ologica Sinica, 31(1): 95-97 Huang Yong, Cheng Bo. 2012. Three new free-living marine nemat-ode species of the genus Micoletzkyia (Phanodermatidae) from China Sea. Journal of the Marine Biological Association of the United Kingdom, 92(5): 941-945 Huang Yong, Wu Xiuqin. 2011. Two new free-living marine nemat-ode species of the genus Vasostoma (Comesomatidae) from the China Sea. Cahiers de Biologie Marine, 52(2): 147-155 Jensen P. 1987. Feeding ecology of free-living aquatic nematodes. Marine Ecology Progress Series, 35: 187-196 Jensen P. 1988. Nematode assemblages in the deep-sea benthos of Norwegian Sea. Deep-Sea Research Part A: Oceanographic Re-search Papers, 35(7): 1173-1184 Lambshead P J D, Tietjen J, Glover A, et al. 2001. Impact of large-scale natural physical disturbance on the diversity of deep-sea North Atlantic nematodes. Marine Ecology Progress Series, 214: 121-126 Lambshead P J D. 2004. Marine nematode biodiversity. In: Chen Z X, Chen S Y, Dickson D W, eds. Nematology: Advances and Per-spectives. Volume 1: Nematode Morphology, Physiology and Ecology. Wallingford: CABI Publishing, 436-467 Liu Xiaoshou, Cheung S G, Shin P K S. 2009. Meiofauna with special reference to nematodes in trawling ground of subtropical Hong Kong. Marine Pollution Bulletin, 58(4): 607-615 Liu Xiaoshou, Xu Man, Zhang Jinghuai, et al. 2014. Abundance and biomass of deep-sea meiofauna in the northern South China Sea. Journal of Tropical Oceanography (in Chinese), 33(2): 52-59 Liu Xiaoshou, Zhang Zhinan, Huang Yong. 2007. Sublittoral meiofauna with particular reference to nematodes in the south-ern Yellow Sea, China. Estuarine, Coastal and Shelf Science, 71(3-4): 616-628 Moens T, Vincx M. 1997. Observations on the feeding ecology of estu-arine nematodes. Journal of Marine Biological Association of the United Kingdom, 77(1): 211-227 Nicholas W L. 2006. The meiofauna of a New South Wales Sandy beach: an introduction to the meiofauna of Australian ocean beaches. Wetlands (Australia), 23(2): 14-31 Pavlyuk O N, Trebukhova J A. 2006. Meiobenthos in Nha trang bay of the South China Sea (Vietnam). Ocean Science Journal, 41(3): 139-148 Platt H M, Warwick R M. 1983. Freeliving marine nematodes. Part I. British enoplids. In: Synopses of the British Fauna (New Series), No. 28. Cambridge: Cambridge University Press Platt H M, Warwick R M. 1988. Free living marine nematodes. Part II. British chromadorids. In: Synopses of the British Fauna (New Series), No. 38. Avon: The Bath Press Schratzberger M, Gee J M, Rees H L, et al. 2000. The structure and taxonomic composition of sublittoral meiofauna assemblages as an indicator of the status of marine environments. Journal of the Marine Biological Association of the UK, 80(6): 969-980 Soetaert K, Heip C. 1995. Nematode assemblages of deep-sea and shelf break sites in the North Atlantic and Mediterranean Sea. Marine Ecology Progress Series, 125: 171-183 Soltwedel T. 2000. Metazoan meiobenthos along continental mar-gins: a review. Progress in Oceanography, 46(1): 59-84 Tang Ling, Li Hengxiang, Yan Yan. 2012a. Preliminary study on meiofauna in Daya Bay of the South China Sea in spring. Mar-ine Environmental Science (in Chinese), 31(3): 405-409 Tang Ling, Zhang Hongbo, Li Hengxiang, et al. 2012b. Meiofauna in autumn in Daya Bay of South China Sea. Journal of Tropical Oceanography (in Chinese), 31(4): 104-111 Thiel H. 1975. The size structure of the deep-sea benthos. Interna-tionale Revueder Gesamten Hydrobiologie, 60(5): 575-606 Tietjen J H. 1976. Distribution and species diversity of the deep-sea nematodes off North Carolina. Deep Sea Research and Oceano-graphic Abstracts, 23(8): 755-768 Tietjen J H. 1984. Distribution and species diversity of deep-sea nem-atodes in the Venezuela Basin. Deep-Sea Research Part A: Oceanographic Research Papers, 31(2): 119-132 Tietjen J H. 1989. Ecology of deep-sea nematodes from the Puerto Rico Trench area and Hatteras Abyssal Plain. Deep-Sea Re-search Part A: Oceanographic Research Papers, 36(10): 1579-1594 Tietjen J H. 1992. Abundance and biomass of metazoan meiobenthos in the deep-sea. In: Rowe G T, Pariente V, eds. Deep-Sea Food Chain and the Global Carbon Cycle. Vol. 360. Dordrecht, Neth-erlands: Kluwer Academic publishers: 45-62 Vincx M, Bett B J, Dinet A, et al. 1994. Meiobenthos of the deep Northeast Atlantic. Advances in Marine Biology, 30: doi: 10.1016/S0065-2881(08)60061-9 Vincx M, Meire P, Heip C. 1990. The distribution of nematodes com-munities in the Southern Bight of the North Sea. Cahiers de Biologie Marine, 31(1): 107-129 Wang Jiadong, Lei Yanli, Xu Kudong, et al. 2009. Spatial distribution of meiofauna in autumn and their relation to environmental factors in China seas. Marine Sciences (in Chinese), 33(9): 62-70 Warwick R M, Platt H M, Somer.eld P J. 1998. Free-living marine nematodes Part III. Monhysterids. In: Synopses of the British Fauna (New Series), No. 53. Shrewsbury: Field Studies Council Warwick R M, Price R. 1979. Ecological and metabolic studies on free-living nematodes from an estuarine mud-flat. Estuaries and Coastal Marine Science, 9(3): 257-271 Wieser W. 1953. Die Beziehung zwischen Mundh.hlengestalt, Ern.hrungsweise und Vorkommen bei freilebenden marinen Nematoden; eine .kologisch-morphologische Studie. Arkiv f.r Zoologi, 4(26): 439-484 Wieser W. 1960. Benthic studies in Buzzards Bay: II. The meiofauna. Limnology and Oceanography, 5(2): 121-137 Yuang Qiaojun, Miao Suying, Li Hengxiang, et al. 2012. Analysis of the meiobenthic community in the Pearl River Estuary in sum-mer. Acta Ecologica Sinica (in Chinese), 32(19): 5962-5971 Zhang Jinghuai, Gao Yang, Fang Hongda. 2011. Abundance and bio-mass of meiobenthos in Lingdingyang Bay of Pearl River Estu-ary. Chinese Journal of Applied Ecology (in Chinese), 22(10): 2741-2748 Zhang Zhinan, Zhou Hong. 2003. The systematics of free-living mar-ine nematodes. Journal of Ocean University of Qingdao (in Chinese), 33(6): 891-900
点击查看大图
计量
- 文章访问数: 1505
- HTML全文浏览量: 48
- PDF下载量: 998
- 被引次数: 0