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Widespread natural intraspecific variation in tissue stoichiometry of two freshwater molluscs: Effect of nutrient enrichment
Cai, Yongjiu1; Xue, Qingju1; Xu, Jun2; Zhang, Lu1; Gong, Zhijun1; Acharya, Kumud3
2016-07-01
Source PublicationECOLOGICAL INDICATORS
ISSN1470-160X
Volume66Pages:583-591
AbstractA central premise of ecological stoichiometry is that consumers maintain relatively fixed elemental composition in their bodies, a process known as elemental homoeostasis. Although nutrient enrichment is a ubiquitous problem facing many freshwater lakes around the world, intraspecific variation in elemental composition of freshwater invertebrates and its relationship with nutrient loading have not been well addressed. Here, we examined carbon:nitrogen:phosphorus (C:N:P) stoichiometry of two widely distributed molluscs, Corbicula fluminea and Bellamya aeruginosa, from several subtropical shallow lakes across a nutrient gradient. Our results showed that these two species exhibited substantial natural intraspecific variation in tissue stoichiometry which can reach or even exceed the values among different freshwater taxa investigated before. Our results suggest that tissue P content presents the greatest variations, followed by N content, and lowest in C content. Tissue P content ranged about three-fold (0.56%-1.65%) and five-fold (0.41%-2.28%) for B. aeruginosa and C fluminea, respectively. Correspondingly, N content ranged from 5.16% to 12.06% and from 6.47 to 11.36%, respectively. Tissue %P, C:P and N:P ratios were strongly correlated with PO43--P and/or chlorophyll-a in the water column. Tissue N and P contents of B. aeruginosa and P content of C. fluminea increased with increasing lake trophic levels (mesotrophic to eutrophic to hypertrophic). These results suggest that the two molluscs can adjust their tissue stoichiometry in relation to nutrient enrichment. Relaxing the assumption of strict homeostasis may help them cope with potential stoichiometric constraints. The results provide additional clues to why these two species are successful invaders and widely distributed. (C) 2016 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordEcological Stoichiometry Homoeostasis Mollusca Eutrophication Shallow Lakes
DOI10.1016/j.ecolind.2016.02.022
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Funding OrganizationNational Basic Research Program of China(31300396 ; National Basic Research Program of China(31300396 ; Natural Science Foundation of Jiangsu Province(BK20131055) ; Natural Science Foundation of Jiangsu Province(BK20131055) ; Program of Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences(NIGLAS2012135012) ; Program of Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences(NIGLAS2012135012) ; 31370477) ; 31370477) ; National Basic Research Program of China(31300396 ; National Basic Research Program of China(31300396 ; Natural Science Foundation of Jiangsu Province(BK20131055) ; Natural Science Foundation of Jiangsu Province(BK20131055) ; Program of Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences(NIGLAS2012135012) ; Program of Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences(NIGLAS2012135012) ; 31370477) ; 31370477)
Language英语
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS SubjectBiodiversity Conservation ; Environmental Sciences
WOS KeywordECOLOGICAL STOICHIOMETRY ; GROWTH-RATE ; ELEMENTAL COMPOSITION ; ORGANISMAL STOICHIOMETRY ; RESOURCE STOICHIOMETRY ; SESTON STOICHIOMETRY ; FOOD WEBS ; C-N ; LAKES ; PHOSPHORUS
WOS IDWOS:000388912300060
Funding OrganizationNational Basic Research Program of China(31300396 ; National Basic Research Program of China(31300396 ; Natural Science Foundation of Jiangsu Province(BK20131055) ; Natural Science Foundation of Jiangsu Province(BK20131055) ; Program of Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences(NIGLAS2012135012) ; Program of Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences(NIGLAS2012135012) ; 31370477) ; 31370477) ; National Basic Research Program of China(31300396 ; National Basic Research Program of China(31300396 ; Natural Science Foundation of Jiangsu Province(BK20131055) ; Natural Science Foundation of Jiangsu Province(BK20131055) ; Program of Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences(NIGLAS2012135012) ; Program of Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences(NIGLAS2012135012) ; 31370477) ; 31370477)
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/28767
Collection淡水生态学研究中心
Affiliation1.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Key Lab Watershed Geog Sci, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430070, Peoples R China
3.Desert Res Inst, Div Hydrol Sci, Las Vegas, NV 89119 USA
Recommended Citation
GB/T 7714
Cai, Yongjiu,Xue, Qingju,Xu, Jun,et al. Widespread natural intraspecific variation in tissue stoichiometry of two freshwater molluscs: Effect of nutrient enrichment[J]. ECOLOGICAL INDICATORS,2016,66:583-591.
APA Cai, Yongjiu,Xue, Qingju,Xu, Jun,Zhang, Lu,Gong, Zhijun,&Acharya, Kumud.(2016).Widespread natural intraspecific variation in tissue stoichiometry of two freshwater molluscs: Effect of nutrient enrichment.ECOLOGICAL INDICATORS,66,583-591.
MLA Cai, Yongjiu,et al."Widespread natural intraspecific variation in tissue stoichiometry of two freshwater molluscs: Effect of nutrient enrichment".ECOLOGICAL INDICATORS 66(2016):583-591.
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