胡家溪中华新米虾种群动态、周年生产量及营养基础分析
POPULATION DYNAMICS, ANNUAL PRODUCTION AND TROPHIC BASIS ANALYSIS OF THE DOMINANT SPECIES NEOCARDINA DENTICULATA SINENSIS (KEMP) IN HUJIAXI STREAM
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摘要: 2006年4月至2007年3月间对清江流域二级河流-胡家溪大型底栖动物群落的优势种中华新米虾[Neocaridina denticulata sinensis(Kemp)]进行为期1周年的调查研究。结果表明,中华新米虾的生活史为1年2代,中华新米虾的种群密度峰值分别出现在7月(31ind/m2)、10月(35ind/m2)、12月(20ind/m2)和次年的2月(20ind/m2),生物量峰值则出现在4月(1.76g/m2)、7月(4.74g/m2)和次年2月(2.38g/m2)。采用体长频率法(Size-frequency method)测算的周年生产量和P/B分别为67.40g/m2(湿重)和4.7。通过对中华新米虾前肠内含物组成的分析测定了各类食物类型的比例及对生产量的贡献率,结果表明,无形态碎屑和动物组织为其主要食物类型,分别占前肠内含物的79.9%和12.5%,对生产力的贡献率分别为62.50%和34.18%。Abstract: Macrozoobenthos community plays an important role in material cycle and energy flow in riverine ecosystem. During the period of April 2006 to March 2007, an investigation on population dynamics, annual production, and trophic basis analysis of a dominant macrozoobenthic species Neocardina denticulata sinensis (Kemp) in a second order river (Hujiaxi Stream) of Qingjiang River Basin was conducted. From the upper to the lower reach of Hujiaxi Stream, we chose six types of habitats to collect quantitative samples. Station 1 (S1) was in the middle of a peaceful flowing section with grit bottom, station 2 (S2) was at a branch away with silver sand, station 3 (S3) was under a waterfall of the riffle with large boulders, station 4 (S4) was at the lower reach of a weir with slowly flowing water and cornbrash, station 5(S5) was at a riffle with much litter and many cobbles on the bed, station 6 (S6) was at the lower reach of a sewage outlet with gravel-sand bottom. At each station, samples were taken with a Surber net (60 mesh), and the specimens were kept in 10% formalin for later processing. The life cycle of N. denticulata sinensis was analyzed by the monthly size-class frequency distribution, the annual production were estimated by size-frequency method, the trophic basis analysis followed the method employed by Wallace and Benke (1997). The results showed that N. denticulata sinensis appeared to develop two generations per year. The density of its population reached its peaks in July (31 ind/m2), October (35 ind/m2), December (20 ind/m2) and February (20 ind/m2) of next year. The biomass reached its peaks in April (1.76 g/m2), July (4.74 g/m2) and February (2.38 g/m2) of next year, respectively. The annual production and the annual P/B ratio of N. denticulata sinensis estimated with size-frequency method were 67.40g/m2, 4.72. The proportions of various food types as well as their contribution to production with foregut content analysis were also examined. The results showed that amorphous detritus and animal materials were the most important food types, accounting for 79.9% and 12.5 % of foregut content, and contributing 62.50% and 34.18% of the production, respectively.
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Keywords:
- Neocardina denticulata sinensis (Kemp) /
- Production /
- Trophic basis /
- Hujiaxi Stream
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[1] Covich A P, Palmer M A, Crowl T A. The role of benthic invertebrate species in freshwater ecosystems [J]. BioScience, 1999, 49: 119-127
[1] [3] Liu R Y. Economical Shrimps in Northern China [M]. Beijing: Science Press. 1995, 25-27 [刘瑞玉. 中国北部经济 虾类. 北京: 科学出版社. 1955, 25-27]
[2] [4] Cai Y X. A revision of the genus Neocaridina (Crustacea: Decapoda: Atyidae) [J]. Acta Zootaxonomica Sinica, 1996, 21(2): 129-160 [蔡奕雄. 新米虾属的修订(甲壳亚门:十 足目: 匙指虾科) . 动物分类学报, 1996, 21(2): 129-160]
[2] Cai L Z. Macrozoobenthos pollution index (MPI) [J]. Acta Scientiae Circumstantiae, 2003, 23(5): 625-629 [蔡立哲. 大型底栖动物污染指数(MPI) . 环境科学学报, 2003, 23(5): 625-629]
[3] [5] Dalian College of Aquaculture (Eds.), Freshwater Biology [M]. Beijing: Chinese Agricultural Press. 1978, 291-334 [大连水产学院主编. 淡水生物学. 北京: 中国农业出版社. 1978, 291-334]
[4] [6] Liang X Q, Fang J Z, Yang H Q. Hydrobiology (Morphology and Taxonomy) [M]. Beijing: Chinese Agricultural Press. 1995, 200-252 [梁象秋, 方纪祖, 杨和荃. 水生生物学 (形态和分类) . 北京: 中国农业出版社. 1995, 200-252]
[5] [7] Zhang J Y, Jiang G L, Wang N, et al. Study on the trypsin gene from Neocaridina denticulata sinensis [J]. Marine Sciences, 2007, 31(2): 39-41 [张建业, 姜国良, 王宁, 等. 中 华新米虾胰蛋白酶基因的研究. 海洋科学, 2007, 31(2): 39-41]
[6] [8] Xue J Z, Wu H X, Chen Z F. Studies on the blood circulation and cardiac rhythm of Neocaridina denticulata sinensis [J]. Journal of Hangzhou Teachers College, 1996, 6: 34-38 [薛 俊增, 吴惠仙, 陈樟福. 中华新米虾血液循环及心率研究. 杭州师范学院学报, 1996, 6: 34-38]
[7] [9] Xue J Z, Zheng L, Chen Z F. Primary study of the embryo development of Neocaridina denticulata sinensis [J]. Journal of Hangzhou Teachers College, 1995, 6: 79-83 [薛俊增, 郑璐, 陈樟福. 中华新米虾胚胎发育的初步研究. 杭州师 范学院学报, 1995, 6: 79-83]
[8] [10] Tian L X, Yang L F. Chinese Economical Insecta (Volume 49) [M]. Beijing: Science Press. 1996, 15-21 [田立新, 杨莲芳. 中国经济昆虫志(第四十九册). 北京: 科学出版社. 1996, 15-21]
[9] [11] Benke A C. Baldi Memorial Lecture: Concepts and patterns of invertebrate production in running waters [J]. Verhandlung der Internationale Vereinigung für theoretische und angewandte Limnologie, 1993, 25: 15-38
[10] [12] Yan Y J, Liang Y L, Wang H Z. Production of gastropods in lake biandantang Ⅱ. annual production of Parafossarulus striatulus [J]. Acta Hydrobiologica Sinica, 2001, 25(1): 36-41 [闫云君, 梁彦龄, 王洪铸. 保安湖扁担塘螺类生 产力的研究. II. 纹沼螺的周年生产量. 水生生物学报, 2001, 25(1): 36-41]
[11] [13] Hynes H B N, Coleman M J. A simple method of assessing the annual production of stream benthos [J]. Limnology Oceanography, 1968, 13: 569-573
[12] [14] Hamilton A L. On estimating annual production [J]. Limnology Oceanography, 1969, 14: 771-782
[13] [15] Benke A C, Wallace J B. Tropic basis of production among net-spinning caddisflies in a southern Appalachian stream [J]. Ecology, 1980, 61: 108-118
[14] [16] Wallace J B, Benke A C. Quantification of wood habitat in subtropical Coastal Plain streams [J]. Canadian Journal of Fisheries and Aquatic Sciences, 1984, 41: 1643-1652
[15] [17] Benke A C, Wallace J B. Trophic basis of production among riverine caddisflies: Implications for food web analysis [J]. Ecology, 1997, 78: 1132-1145
[16] [18] Tan Q K, Zhu Q S. Shrimps in Chaohu Lake and its adjacent water bodies [J]. Journal of Anhui Normal University (Natural Science), 1982, 1: 80-85 [谈奇坤, 朱清顺. 巢湖及其 周围水域的虾类. 安徽师范大学学报(自然科学版), 1982, 1: 80-85]
[17] [19] Qin H M, Zhang T L, Li Z J, et al. Species composition, spatial distribution and biomass of shrimp community in the Biandantang lake [J]. Acta Hydrobiologica Sinica, 2005, 29(4): 379-384 [秦海明, 张堂林, 李钟杰, 等. 扁担塘虾 类群落组成、空间分布和生物量估算. 水生生物学报, 2005, 29(4): 379-384]
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