{"refrec":{"BRefID":286566,"RR":"<b>Hansen, B.W.; Hansen, P.J.; Nielsen, T.G.; Jepsen, P.M.</b> (2017). Effects of elevated pH on marine copepods in mass cultivation systems: practical implications. <i>J. Plankton Res. 39(6)</i>: 984-993. <a href=\"https://dx.doi.org/10.1093/plankt/fbx032\" target=\"_blank\">https://dx.doi.org/10.1093/plankt/fbx032</a>","BEntID":278590,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>J. Plankton Res. 39(6)</i>: 984-993. <a href=\"https://dx.doi.org/10.1093/plankt/fbx032\" target=\"_blank\">https://dx.doi.org/10.1093/plankt/fbx032</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Hansen, B.W.; Hansen, P.J.; Nielsen, T.G.; Jepsen, P.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Hansen, B.W. <i>et al.</i>","Englishabstract":"Female tolerance to pH (8.0–9.5) by six marine copepods, <i>Oithona similis, Temora longicornis, Acartia</i> spp., <i>Centropages typicus, Pseudocalanus elongatus</i> and <i>Eurytemora affinis</i> was investigated to identify robust species for live feed production. The species with the most oceanic-neritic distribution, <i>O. similis</i>, exhibited 72 h LC50 at pH 8.39 ± 0.11 (±95% CL) whereas the most estuarine E. affinis had LC50 at pH 9.51 ± 0.04. The rest had LC50 at intermediary pH's. Egg hatching by a selection of species, <i>Acartia</i> spp., <i>C. typicus</i> and <i>E. affinis</i>, was unaffected by pH up to 9.0–9.5. Nauplii from both <i>Acartia</i> spp. and <i>C. typicus</i> had higher mortality at pH 9.5 than at the other pH regimes while <i>E. affinis</i> nauplii were not affected by pH. Wild <i>Acartia</i> spp. and <i>A. tonsa</i> from a culture showed some differences in response although of minor practical importance for aquaculture; both produced no eggs at pH 9.5, <i>A. tonsa</i> exhibited significantly higher egg production at all other pH's than 9.5, both showed egg hatching invariant of pH, but gradually increasing nauplii mortality with pH. We suggest active/passive selection to obtain the most pH robust species able to cope with accidently, but frequently, elevated pH in aquaculture systems.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Effects of elevated pH on marine copepods in mass cultivation systems: practical implications","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-19 01:31:50.703004","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"copepods; elevated pH; egg production and hatching; adult and nauplii survival; ","OtherDescriptors":null,"Notes":null,"AnaPub":2017,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2017-07-05","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000417254900011","VABBcode":null,"OpenAcc":0,"DOI":"10.1093/plankt/fbx032"},"refs":null,"anarec":{"AnaID":286566,"PubliDate":2017,"Pagination":"984-993","XtraPublOfAnaID":null,"ISBN":null,"Volume":"39","Issue":"6","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43255,"SerRR":"Journal of Plankton Research. Oxford University Press: New York,.  ISSN 0142-7873; e-ISSN 1464-3774","StandardTitleSer":"Journal of Plankton Research","ISSN":"0142-7873","AbbrevSer":"J. 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