Functional groups of marine macrobenthos in relation to environmental factors around the Ximen Island National Marine Special Reserve, Zhejiang

doi:10.3724/SP.J.1003.2013.08151

Abstract

Abstract:

We evaluated the seasonal change in functional groups of marine macrobenthos in relation to environmental factors in the Ximen Island National Marine Special Reserve, Zhejiang Province, in April and November of 2010, August 2011 and February 2012. We identified a total of 78 taxa (mostly to species level) and categorized these taxa by feeding strategy. Overall, we categorized these taxa into following five functional groups: planktophagous(Pl), phytophagous(Ph), carnivorous(C), omnivorous(O), and detritivorous(D). The mean density of each functional group was ranked as Pl>C>Ph>D>O, and the mean biomass as Pl>D>C>O>Ph. Based on the results of variance analysis (one-way ANOVA), we found no significant seasonal differences of density and biomass among functional groups. We used canonical correspondence analysis to examine relationships between environmental factors and macrobenthic functional groups. Our results imply that temperature, dissolved oxygen, dissolved inorganic phosphorus and median particle diameter were the main environmental factors correlated with macrobenthic functional groups. Results of the cumulative percentage variance in functional groups-environment relationships indicated that the changes of functional groups can be explained best by the environmental factors.

Key words: macrobenthos, functional group, biodiversity, environmental factors, national marine special reserve

Yibo Liao,Lu Shou,Jiangning Zeng,Aigen Gao,Yanbin Tang,Xiaojun Yan,Quanzhen Chen. Functional groups of marine macrobenthos in relation to environmental factors around the Ximen Island National Marine Special Reserve, Zhejiang[J]. Biodiv Sci, 2013, 21(1): 3-10.

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URL: https://www.biodiversity-science.net/EN/10.3724/SP.J.1003.2013.08151

https://www.biodiversity-science.net/EN/Y2013/V21/I1/3

Figures/Tables 7

References 30

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	春季 Spring	夏季 Summer	秋季 Autumn	冬季 Winter	F	P
温度 Temperature (℃)	15.2±0.5	29.3±0.3	15.0±0.6	9.8±0.7	F_3,24= 1,770.05	<0.01
盐度 Salinity	14.9±3.7	21.1±5.8	24.2±0.7	21.1±0.8	F_3,24= 8.92	<0.01
pH	7.95±0.02	7.87±0.04	8.05±0.01	7.96±0.01	F_3,24=68.00	<0.01
溶解氧 Dissolved oxygen (mg/L)	8.26±0.35	5.72±0.14	8.14±0.06	9.53±0.27	F_3,24=327.09	<0.01
溶解态无机氮 Dissolved inorganic nitrogen (mg/L)	0.805±0.228	0.842±0.231	0.692±0.042	0.769±0.081	F_3,24=595.90	<0.01
溶解态无机磷 Dissolved inorganic phosphorus (mg/L)	0.035±0.001	0.029±0.002	0.040±0.003	0.025±0.002	F_3,24=61.84	<0.01
中值粒径 Median particle diameter (μm)	6.12±0.21	6.37±0.31	6.05±0.05	5.96±0.34	F_3,24=3.31	0.04
有机碳 Total organic carbon (%)	1.20±0.12	0.99±0.02	0.81±0.06	0.77±0.08	F_3,24= 46.80	<0.01

	春季 Spring	夏季 Summer	秋季 Autumn	冬季 Winter	F	P
温度 Temperature (℃)	15.2±0.5	29.3±0.3	15.0±0.6	9.8±0.7	F_3,24= 1,770.05	<0.01
盐度 Salinity	14.9±3.7	21.1±5.8	24.2±0.7	21.1±0.8	F_3,24= 8.92	<0.01
pH	7.95±0.02	7.87±0.04	8.05±0.01	7.96±0.01	F_3,24=68.00	<0.01
溶解氧 Dissolved oxygen (mg/L)	8.26±0.35	5.72±0.14	8.14±0.06	9.53±0.27	F_3,24=327.09	<0.01
溶解态无机氮 Dissolved inorganic nitrogen (mg/L)	0.805±0.228	0.842±0.231	0.692±0.042	0.769±0.081	F_3,24=595.90	<0.01
溶解态无机磷 Dissolved inorganic phosphorus (mg/L)	0.035±0.001	0.029±0.002	0.040±0.003	0.025±0.002	F_3,24=61.84	<0.01
中值粒径 Median particle diameter (μm)	6.12±0.21	6.37±0.31	6.05±0.05	5.96±0.34	F_3,24=3.31	0.04
有机碳 Total organic carbon (%)	1.20±0.12	0.99±0.02	0.81±0.06	0.77±0.08	F_3,24= 46.80	<0.01

	春季 Spring	夏季 Summer	秋季 Autumn	冬季 Winter	F	P
密度 Density
浮游生物食者 Planktophagous group	415	91	457	61	F_3,24=0.90	0.46
植食者 Phytophagous group	9	89	34	36	F_3,24=1.54	0.23
肉食者 Carnivorous group	38	46	54	66	F_3,24=0.53	0.67
杂食者 Omnivorous group	3	3	0	14	F_3,24=2.99	0.05
碎屑食者 Detritivorous group	19	30	19	61	F_3,24=1.92	0.15
生物量 Biomass
浮游生物食者 Planktophagous group	14.16	2.58	47.02	1.14	F_3,24=1.29	0.30
植食者 Phytophagous group	2.61	3.36	4.95	2.48	F_3,24=0.37	0.77
肉食者 Carnivorous group	6.20	5.60	3.23	6.81	F_3,24=0.38	0.77
杂食者 Omnivorous group	0.05	12.63	0.00	1.55	F_3,24=1.92	0.15
碎屑食者 Detritivorous group	23.72	0.30	1.80	1.69	F_3,24=1.19	0.34

	春季 Spring	夏季 Summer	秋季 Autumn	冬季 Winter	F	P
密度 Density
浮游生物食者 Planktophagous group	415	91	457	61	F_3,24=0.90	0.46
植食者 Phytophagous group	9	89	34	36	F_3,24=1.54	0.23
肉食者 Carnivorous group	38	46	54	66	F_3,24=0.53	0.67
杂食者 Omnivorous group	3	3	0	14	F_3,24=2.99	0.05
碎屑食者 Detritivorous group	19	30	19	61	F_3,24=1.92	0.15
生物量 Biomass
浮游生物食者 Planktophagous group	14.16	2.58	47.02	1.14	F_3,24=1.29	0.30
植食者 Phytophagous group	2.61	3.36	4.95	2.48	F_3,24=0.37	0.77
肉食者 Carnivorous group	6.20	5.60	3.23	6.81	F_3,24=0.38	0.77
杂食者 Omnivorous group	0.05	12.63	0.00	1.55	F_3,24=1.92	0.15
碎屑食者 Detritivorous group	23.72	0.30	1.80	1.69	F_3,24=1.19	0.34

排序轴 CCA axes	轴 Axis				总惯量 Total inertia
排序轴 CCA axes	1	2	3	4	总惯量 Total inertia
特征值 Eigenvalues	0.336	0.115	0.017	0.002	0.957
功能群与环境因子相关系数 Functional groups-environment correlations	0.805	0.743	0.357	0.151
排序轴对功能群-环境关系的贡献率 Cumulative percentage variance of functional groups-environment relation	71.6	96.0	99.5	100.0