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题名: Effects of high ammonia concentrations on three cyprinid fish: Acute and whole-ecosystem chronic tests
作者: Wang, Hai-Jun1; Xiao, Xu-Cheng1, 2; Wang, Hong-Zhu1; Li, Yan1, 2; Yu, Qing1, 2; Liang, Xiao-Min1; Feng, Wei-Song1; Shao, Jian-Chun2, 3; Rybicki, Marcus4; Jungmann, Dirk4; Jeppesen, Erik5, 6
关键词: Ammonia ; Cyprinid fish ; Acute test ; Chronic test ; Whole-ecosystem experiment
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
发表日期: 2017-11-15
DOI: 10.1016/j.scitotenv.2017.04.070
卷: 598, 页:900-909
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: A number of studies have revealed ammonia to be toxic to aquatic organisms; however, little is known about its effects under natural conditions. To elucidate the role of ammonia, we conducted 96-h acute toxicity tests as well as a whole-ecosystem chronic toxicity test for one year in ten 600-m(2) ponds. Three common cyprinids, silver carp Hypophthalmichthys molitrix Val. (H.m.), bighead carp Aristichthys nobilis Richardson (Am.), and gibel carp Carassius auratus gibelio Bloch (C.g.), were used as test organisms. The 96-h LC50 values of un-ionized ammonia (NH3) for H.m.,A.n., and Cg. were 035, 033, and 0.73 mg L-1, respectively. In the ponds, annual mean NH3 ranged between 0.01 and 0.54 mg L-1, with 4 ponds having a NH3 higher than the LC50 of A.n. (lowest LC50 in this study). No fish were found dead in the high-nitrogen ponds, but marked histological changes were found in livers and gills. Despite these changes, the specific growth rate of H.m. and An. increased significantly with NH3. Our pond results suggest that fish might be more tolerant to high ammonia concentrations in natural aquatic ecosystems than under laboratory conditions. Our finding from field experiments thus suggests that the existing regulatory limits for reactive nitrogen (NH3) established from lab toxicity tests might be somewhat too high at the ecosystem conditions. Field-scale chronic toxicity tests covering full life histories of fish and other aquatic organisms are therefore encouraged in order to optimize determination of the effects of ammonia in natural environments. (C) 2017 Elsevier B.V. All rights reserved.
关键词[WOS]: GOLDFISH CARASSIUS-AURATUS ; HIGH ENVIRONMENTAL AMMONIA ; GROWTH ; GILL ; EXCRETION ; TOXICITY ; STREAMS ; RIVER ; CARP ; INVERTEBRATES
语种: 英语
项目资助者: State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ09 ; Science and Technology Support Program of Hubei Province(2015BBA225) ; Youth Innovation Association of Chinese Academy of Sciences(2014312) ; MARS project (Managing Aquatic ecosystems and water Resources under multiple Stress) - 7th EU Framework Programme, Theme 6 (Environment including Climate Change)(603378) ; AQUACOSM (Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean)(731065) ; CLEAR (a Villum Kann Rasmussen Centre of Excellence project) ; 2014FB14 ; 2011FBZ14)
WOS记录号: WOS:000404504000091
ISSN号: 0048-9697
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/32840
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Natl & Local Joint Engn Lab Ecol Mariculture, Qingdao 266071, Peoples R China
4.Tech Univ Dresden, Inst Hydrobiol, D-01062 Dresden, Germany
5.Aarhus Univ, Dept Biosci, Aarhus, Denmark
6.Sinodanish Ctr Educ & Res, Beijing 100049, Peoples R China
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