Species composition and diversity of zooplankton in tidal creeks of the Chongming Dongtan intertidal flat

doi:10.3724/SP.J.1003.2010.067

Abstract

Abstract:

In order to reveal the diversity of zooplankton in tidal creeks of the Chongming Dongtan intertidal flat, we sampled zooplankton at 18 stations in six tidal creeks during four seasons from April to December in 2008. The species composition, dominant species, community structure, and species diversity were recorded. A total of 44 species, belonging to 6 taxa, were identified. Among them, Copepoda were dominant, accounting for 79.5% of the total recorded species. There were nine dominant species. Sinocalanus tenellus was the most dominant species in spring, Schmackeria poplesia in summer, Schmackeria poplesia and Sinocalanus sinensis in autumn, and Sinocalanus sinensis and Limnoithona etraspina in winter. Shannon-Wiener indices (H′) were higher in summer and winter, species richness indices (d) were higher in summer and autumn, and Pielou evenness indices (J′) peaked in winter. Compared with data from North Channel and the North Branch of the Yangtze River Estuary, only six common species were found, demonstrating significantly different species composition. The ecological characteristics of zooplankton were also related to tide; species diversity was slightly higher during flood tide than ebb tide. In addition, the dominant species were different during flood and ebb tide. Environmental factors, such as salinity, temperature, runoff, and tidal current influenced the temporal and spatial distributions of zooplankton in tidal creeks.

Key words: species composition, dominant species, community structure, species diversity, tidal creek, zooplankton

Qiang Li, Chuanguang An, Qiang Ma, Linlin Xu, Yunlong Zhao. Species composition and diversity of zooplankton in tidal creeks of the Chongming Dongtan intertidal flat[J]. Biodiv Sci, 2010, 18(1): 67-75.

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URL: https://www.biodiversity-science.net/EN/10.3724/SP.J.1003.2010.067

https://www.biodiversity-science.net/EN/Y2010/V18/I1/67

Figures/Tables 7

References 35

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类群 Phyla	春季 Spring		夏季 Summer		秋季 Autumn		冬季 Winter		全年 Total
类群 Phyla	涨潮 F	落潮 E	涨潮 F	落潮 E	涨潮 F	落潮 E	涨潮 F	落潮 E	涨潮 F	落潮 E
桡足类 Copepoda	21 (80.8%)	21 (80.8%)	23 (76.7%)	23 (76.7%)	27 (75.0%)	26 (76.5%)	20 (83.3%)	19 (82.6%)	35 (79.5%)	35 (79.5%)
端足类 Amphipoda	2 (7.7%)	2 (7.7%)	3 (10.0%)	3 (10.0%)	3 (8.3%)	2 (5.9%)	2 (8.3%)	2 (8.7%)	3 (6.8%)	3 (6.8%)
等足类 Isopoda	0	0	1 (3.3%)	1 (3.3%)	2 (5.6%)	2 (5.9%)	0	0	2 (4.5%)	2 (4.5%)
枝角类 Cladoceran	1 (3.8%)	1 (3.8%)	2 (6.7%)	2 (6.7%)	2 (5.6%)	2 (5.9%)	0	0	2 (4.5%)	2 (4.5%)
糠虾类 Mysidacea	1 (3.8%)	1 (3.8%)	1 (3.3%)	1 (3.3%)	1 (2.8%)	1 (2.9%)	1 (4.2%)	1 (4.3%)	1 (2.3%)	1 (2.3%)
涟虫类 Cumacea	1 (3.8%)	1 (3.8%)	0	0	1 (2.8%)	1 (2.9%)	1 (4.2%)	1 (4.3%)	1 (2.3%)	1 (2.3%)
合计 Total	26	26	30	30	36	34	24	23	44	44

类群 Phyla	春季 Spring		夏季 Summer		秋季 Autumn		冬季 Winter		全年 Total
类群 Phyla	涨潮 F	落潮 E	涨潮 F	落潮 E	涨潮 F	落潮 E	涨潮 F	落潮 E	涨潮 F	落潮 E
桡足类 Copepoda	21 (80.8%)	21 (80.8%)	23 (76.7%)	23 (76.7%)	27 (75.0%)	26 (76.5%)	20 (83.3%)	19 (82.6%)	35 (79.5%)	35 (79.5%)
端足类 Amphipoda	2 (7.7%)	2 (7.7%)	3 (10.0%)	3 (10.0%)	3 (8.3%)	2 (5.9%)	2 (8.3%)	2 (8.7%)	3 (6.8%)	3 (6.8%)
等足类 Isopoda	0	0	1 (3.3%)	1 (3.3%)	2 (5.6%)	2 (5.9%)	0	0	2 (4.5%)	2 (4.5%)
枝角类 Cladoceran	1 (3.8%)	1 (3.8%)	2 (6.7%)	2 (6.7%)	2 (5.6%)	2 (5.9%)	0	0	2 (4.5%)	2 (4.5%)
糠虾类 Mysidacea	1 (3.8%)	1 (3.8%)	1 (3.3%)	1 (3.3%)	1 (2.8%)	1 (2.9%)	1 (4.2%)	1 (4.3%)	1 (2.3%)	1 (2.3%)
涟虫类 Cumacea	1 (3.8%)	1 (3.8%)	0	0	1 (2.8%)	1 (2.9%)	1 (4.2%)	1 (4.3%)	1 (2.3%)	1 (2.3%)
合计 Total	26	26	30	30	36	34	24	23	44	44

优势种 Dominant species	春季 Spring		夏季 Summer		秋季 Autumn		冬季 Winter
优势种 Dominant species	涨潮 F	落潮 E	涨潮 F	落潮 E	涨潮 F	落潮 E	涨潮 F	落潮 E
中华华哲水蚤 Sinocalanus sinensis	0.032	0.021	0.184	0.177	0.268	0.625	0.338	0.069
细巧华哲水蚤 S. tenellus	0.538	0.243			0.022		0.082	0.034
火腿许水蚤 Schmackeria poplesia		0.056	0.454	0.455	0.310	0.022	0.049	0.066
宽足咸水剑水蚤 Halicyclops latus				0.022
中华咸水剑水蚤 H. sinensis			0.043	0.049	0.050	0.080		0.031
四刺窄腹剑水蚤 Limnoithona etraspina					0.095	0.030	0.300	0.432
湖泊美丽猛水蚤 Nitocra lacustris			0.029
三角大吉猛水蚤 Tachidius triangularis	0.184	0.218					0.027	0.053
四刺破足猛水蚤 Mesochra quadrispinosa	0.122	0.081					0.043	0.036

优势种 Dominant species	春季 Spring		夏季 Summer		秋季 Autumn		冬季 Winter
优势种 Dominant species	涨潮 F	落潮 E	涨潮 F	落潮 E	涨潮 F	落潮 E	涨潮 F	落潮 E
中华华哲水蚤 Sinocalanus sinensis	0.032	0.021	0.184	0.177	0.268	0.625	0.338	0.069
细巧华哲水蚤 S. tenellus	0.538	0.243			0.022		0.082	0.034
火腿许水蚤 Schmackeria poplesia		0.056	0.454	0.455	0.310	0.022	0.049	0.066
宽足咸水剑水蚤 Halicyclops latus				0.022
中华咸水剑水蚤 H. sinensis			0.043	0.049	0.050	0.080		0.031
四刺窄腹剑水蚤 Limnoithona etraspina					0.095	0.030	0.300	0.432
湖泊美丽猛水蚤 Nitocra lacustris			0.029
三角大吉猛水蚤 Tachidius triangularis	0.184	0.218					0.027	0.053
四刺破足猛水蚤 Mesochra quadrispinosa	0.122	0.081					0.043	0.036

季节 Season	潮汐 Tide	S1	S2	S3	S4	S5	S6
春季 Spring	涨潮 Flood tide	2.29-3.06	1.54-2.07	1.53-2.21	1.35-1.97	1.48-1.83	1.46-1.99
春季 Spring	落潮 Ebb tide	0.75-0.96	0.53-0.68	0.53-0.77	0.54-0.72	0.50-0.69	0.47-0.63
夏季 Summer	涨潮 Flood tide	2.37-3.16	1.63-2.29	1.66-2.30	1.48-2.09	1.59-1.97	1.60-2.07
夏季 Summer	落潮 Ebb tide	0.78-0.99	0.56-0.73	0.60-0.77	0.58-0.71	0.60-0.72	0.57-0.69
秋季 Autumn	涨潮 Flood tide	2.31-3.12	1.60-2.24	1.61-2.26	1.45-2.05	1.50-1.95	1.56-2.03
秋季 Autumn	落潮 Ebb tide	0.80-1.01	0.55-0.69	0.59-0.78	0.56-0.73	0.59-0.75	0.60-0.72
冬季 Winter	涨潮 Flood tide	2.14-2.98	1.47-1.95	1.42-2.03	1.28-1.85	1.34-1.76	1.32-1.81
冬季 Winter	落潮 Ebb tide	0.69-0.91	0.49-0.65	0.46-0.66	0.45-0.62	0.44-0.55	0.44-0.61