IHB OpenIR  > 期刊论文
TN : TP ratio and planktivorous fish do not affect nutrient-chlorophyll relationships in shallow lakes
Wang, Hai-Jun1; Liang, Xiao-Min1; Jiang, Ping-Hong1,2; Wang, Jian1; Wu, Shi-Kai1,2; Wang, Hong-Zhu1; Wang, HZ, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2008-05-01
Source PublicationFRESHWATER BIOLOGY
ISSN0046-5070
Volume53Issue:5Pages:935-944
Abstract1. In previous work, phytoplankton regulation in freshwater lakes has been associated with many factors. Among these, the ratio of total nitrogen to total phosphorus (TN : TP) has been widely proposed as an index to identify whether phytoplankton are N- or P-limited. From another point of view, it has been suggested that planktivorous fish can be used to control phytoplankton. 2. Large-scale investigations of phytoplankton biomass [measured as chlorophyll a, (chl-a)] were carried out in 45 mid-lower Yangtze shallow lakes to test hypotheses concerning nutrient limitation (assessed with TN : TP ratios) and phytoplankton control by planktivorous fish. 3. Regression analyses indicated that TP was the primary regulating factor and TN the second regulating factor for both annual and summer phytoplankton chl-a. In separate nutrient-chl-a regression analyses for lakes of different TN : TP ratios, TP was also superior to TN in predicting chl-a at all particular TN : TP ranges and over the entire TN : TP spectrum. Further analyses found that chl-a : TP was not influenced by TN : TP, while chl-a : TN was positively and highly correlated to TP : TN. 4. Based on these results, and others in the literature, we argue that the TN : TP ratio is inappropriate as an index to identify limiting nutrients. It is almost impossible to specify a 'cut-off' TN : TP ratio to identify a limiting nutrient for a multi-species community because optimal N : P ratios vary greatly among phytoplankton species. 5. Lakes with yields of planktivorous fish (silver and bighead carp, the species native to China) > 100 kg ha(-1) had significantly higher chl-a and lower Secchi depth than those with yields < 100 kg ha(-1). TP-chl-a and TP-Secchi depth relationships are not significantly different between lakes with yields > 100 kg ha(-1) or < 100 kg ha(-1). These results indicate that the fish failed to decrease chl-a yield or enhance Z(SD). Therefore, silver carp and bighead carp are not recommended as a biotic agent for phytoplankton control in lake management if the goal is to control the entire phytoplankton and to enhance water quality.; 1. In previous work, phytoplankton regulation in freshwater lakes has been associated with many factors. Among these, the ratio of total nitrogen to total phosphorus (TN : TP) has been widely proposed as an index to identify whether phytoplankton are N- or P-limited. From another point of view, it has been suggested that planktivorous fish can be used to control phytoplankton.
SubtypeArticle
KeywordChlorophyll-a Phytoplankton Planktivorous Fish Total Nitrogen : Total Phosphorus Ratio Total Phosphorus
Department[Wang, Hai-Jun; Liang, Xiao-Min; Jiang, Ping-Hong; Wang, Jian; Wu, Shi-Kai; Wang, Hong-Zhu] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Jiang, Ping-Hong; Wu, Shi-Kai] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
Subject AreaMarine & Freshwater Biology
DOI10.1111/1365-2427.2007.01950.x
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000254808400008
WOS KeywordSILVER CARP ; HYPOPHTHALMICHTHYS-MOLITRIX ; PLANKTON COMMUNITY ; ALGAL BIOMASS ; BIGHEAD CARP ; PHOSPHORUS ; PREDICTION ; NITROGEN ; EUTROPHICATION ; PHYTOPLANKTON
Citation statistics
Cited Times:53[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8184
Collection期刊论文
Corresponding AuthorWang, HZ, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Wang, Hai-Jun,Liang, Xiao-Min,Jiang, Ping-Hong,et al. TN : TP ratio and planktivorous fish do not affect nutrient-chlorophyll relationships in shallow lakes[J]. FRESHWATER BIOLOGY,2008,53(5):935-944.
APA Wang, Hai-Jun.,Liang, Xiao-Min.,Jiang, Ping-Hong.,Wang, Jian.,Wu, Shi-Kai.,...&Wang, HZ, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2008).TN : TP ratio and planktivorous fish do not affect nutrient-chlorophyll relationships in shallow lakes.FRESHWATER BIOLOGY,53(5),935-944.
MLA Wang, Hai-Jun,et al."TN : TP ratio and planktivorous fish do not affect nutrient-chlorophyll relationships in shallow lakes".FRESHWATER BIOLOGY 53.5(2008):935-944.
Files in This Item: Download All
File Name/Size DocType Version Access License
TN - TP ratio and pl(536KB) 开放获取--View Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Hai-Jun]'s Articles
[Liang, Xiao-Min]'s Articles
[Jiang, Ping-Hong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Hai-Jun]'s Articles
[Liang, Xiao-Min]'s Articles
[Jiang, Ping-Hong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Hai-Jun]'s Articles
[Liang, Xiao-Min]'s Articles
[Jiang, Ping-Hong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: TN - TP ratio and planktivorous fish do not affect nutrient-chlorophyll relationships in shallow lakes.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.