{"refrec":{"BRefID":141979,"RR":"<b>Yin, X.W.; Niu, C.J.</b> (2008). Effect of pH on survival, reproduction, egg viability and growth rate of five closely related rotifer species. <i>Aquat. Ecol. 42(4)</i>: 607-616. <a href=\"https://dx.doi.org/10.1007/s10452-007-9136-9\" target=\"_blank\">https://dx.doi.org/10.1007/s10452-007-9136-9</a>","BEntID":135239,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Aquat. Ecol. 42(4)</i>: 607-616. <a href=\"https://dx.doi.org/10.1007/s10452-007-9136-9\" target=\"_blank\">https://dx.doi.org/10.1007/s10452-007-9136-9</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":1,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Yin, X.W.; Niu, C.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Yin, X.W.; Niu, C.J.","Englishabstract":"In the laboratory we examined the effect of pH (5–10 with one interval) on survival, reproduction, egg viability and growth rate (intrinsic growth rate—<i>r</i> <sub>m</sub> and population growth rate—<i>r</i>) of five <i>Brachionus</i> rotifer species (<i>B</i>. <i>calyciflorus</i>, <i>B</i>. <i>quadridentatus</i>, <i>B</i>. <i>urceolaris</i>, <i>B</i>. <i>patulus</i> and <i>B</i>. <i>angularis</i>). The pH was shown to exert a major influence on egg viability and growth rate (<i>r</i> <sub>m</sub> and <i>r</i>) for each species. The age-specific survivorship curves within a species were not significantly different at pH 6–10. The optimal pH for each species is near-neutral pH (pH 6–8), and the fecundity decreased as the pH deviated from these values. For each <i>Brachionus</i> species, there was no significant difference between age-specific fecundity curves at pH 7 and 8. At acid pH (pH 5 or 6) higher egg mortality was observed for each species. The <i>r</i> <sub>m</sub> and population <i>r</i> of the five <i>Brachionus</i> species incubated at different pHs were significantly influenced by pH. The pH supporting the highest <i>r</i> <sub>m</sub> or <i>r</i> was obtained at pH 6–8, but varied due to species. In this study <i>B</i>. <i>urceolaris</i> and <i>B</i>. <i>patulus</i> could tolerate a broad range of pH, while the populations of <i>B</i>. <i>calyciflorus</i>, <i>B</i>. <i>quadridentatus</i> and <i>B</i>. <i>angulari</i> declined at acid conditions.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Effect of pH on survival, reproduction, egg viability and growth rate of five closely related rotifer species","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-10 01:31:39.208282","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Brachionus; pH; Life table; Intrinsic growth rate; Population growthrate; Egg mortality","OtherDescriptors":null,"Notes":null,"AnaPub":2008,"MonPub":null,"DateUpdate":"2020-11-03","DateCreate":"2009-11-12","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000260834900009","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s10452-007-9136-9"},"refs":null,"anarec":{"AnaID":141979,"PubliDate":2008,"Pagination":"607-616","XtraPublOfAnaID":null,"ISBN":null,"Volume":"42","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42197,"SerRR":"Aquatic Ecology. 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