{"refrec":{"BRefID":28720,"RR":"<b>Hanson, M.L.; Sibley, P.K.; Ellis, D.A.; Mabury, S.A.; Muir, D.C.G.; Solomon, K.R.</b> (2002). Evaluation of monochloroacetic acid (MCA) degradation and toxicity to <i>Lemna gibba, Myriophyllum spicatum</i>, and <i>Myriophyllum sibiricum</i> in aquatic microcosms. <i>Aquat. Toxicol. 61(3-4)</i>: 251-273. <a href=\"https://dx.doi.org/10.1016/S0166-445X(02)00089-9\" target=\"_blank\">https://dx.doi.org/10.1016/S0166-445X(02)00089-9</a>","BEntID":28720,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Aquat. Toxicol. 61(3-4)</i>: 251-273. <a href=\"https://dx.doi.org/10.1016/S0166-445X(02)00089-9\" target=\"_blank\">https://dx.doi.org/10.1016/S0166-445X(02)00089-9</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":1,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Hanson, M.L.; Sibley, P.K.; Ellis, D.A.; Mabury, S.A.; Muir, D.C.G.; Solomon, K.R.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Hanson, M.L. <i>et al.</i>","Englishabstract":"The fate of monochloroacetic acid (MCA), a common phytotoxic aquatic contaminant, and its toxicity to the aquatic macrophytes <i>Lemna gibba</i> (<i>L. gibba</i>), <i>Myriophyllum spicatum</i> (<i>M. spicatum</i>), and <i>Myriophyllum sibiricum</i> (<i>M. sibiricum</i>) under semi-natural field conditions was studied. Replicate 12,000 l enclosures were treated with 0, 3, 10, 30 and 100 mg/l of MCA. Each microcosm was stocked with eight individual apical shoots of <i>M. spicatum</i> and <i>M. sibiricum</i> 1 day prior to initiation of exposure. Plants were sampled after 4, 7, 14 and 28 days of exposure and their response assessed using numerous somatic and biochemical endpoints. <i>L. gibba</i> was introduced into the microcosms the day of MCA treatment and monitored regularly for 21 days. The half-life of MCA in the water column ranged between 86 and 523 h. The most sensitive plant species was <i>M. spicatum</i>, followed by <i>M. sibiricum</i> and <i>L. gibba</i>. All species demonstrated toxicity within a threefold range of each other. Endpoint sensitivity varied depending on the duration of exposure and the level of effect chosen. Most species endpoint EC<sub>x</sub> values were less than an order of magnitude different. Citrate levels in <i>Myriophyllum</i> spp. were not influenced by exposure to MCA. The toxicity of MCA to <i>M. spicatum</i> and <i>M. sibiricum</i> was very similar and thus highly predictive of toxicity observed for each other. The EC<sub>10</sub> was a more conservative estimate of toxicity than the statistically derived no observed effect concentration. Current concentrations of MCA are not likely to pose a risk to these aquatic plants in surface waters.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Evaluation of monochloroacetic acid (MCA) degradation and toxicity to <i>Lemna gibba, Myriophyllum spicatum</i>, and <i>Myriophyllum sibiricum</i> in aquatic microcosms","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-23 01:31:48.314001","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":"Monochloroacetic acid","Notes":null,"AnaPub":2002,"MonPub":null,"DateUpdate":"2002-10-25","DateCreate":"2002-10-25","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000178631700010","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/S0166-445X(02)00089-9"},"refs":null,"anarec":{"AnaID":28720,"PubliDate":2002,"Pagination":"251-273","XtraPublOfAnaID":null,"ISBN":null,"Volume":"61","Issue":"3-4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42203,"SerRR":"Aquatic Toxicology. 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