{"refrec":{"BRefID":39602,"RR":"<b>Hirst, A.G.; Castro-Longoria, E.</b> (1998). <i>Acartia bifilosa</i> (Copepoda: Calanoida): a clarification of the species and its varieties <i>inermis</i> and <i>intermedia</i>. <i>J. Plankton Res. 20(6)</i>: 1119-1130. <a href=\"https://dx.doi.org/10.1093/plankt/20.6.1119\" target=\"_blank\">https://dx.doi.org/10.1093/plankt/20.6.1119</a>","BEntID":39602,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>J. Plankton Res. 20(6)</i>: 1119-1130. <a href=\"https://dx.doi.org/10.1093/plankt/20.6.1119\" target=\"_blank\">https://dx.doi.org/10.1093/plankt/20.6.1119</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Hirst, A.G.; Castro-Longoria, E.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Hirst, A.G.; Castro-Longoria, E.","Englishabstract":"Adults of the calanoid copepod <i>Acartia bifilosa</i> and the varieties <i>inermis</i> and <i>intermedia</i> are examined and described. This study brings to light discrepancies in the available keys to all these forms. Individuals previously reported and also deposited in museum collections as <i>A. bifilosa</i> var. <i>inermis</i> and var. <i>intermedia</i> are shown to be similar to <i>A. bifilosa</i> with respect to characteristics previously used for classification. <i>Acartia bifilosa</i> and its varieties were shown to possess setules on the dorsal side of female and male urosomes, although there was great variation in the size and position of these. The fifth legs (P5) of adult males and females were very similar in all individuals examined, regardless of how they were previously classified, although the original descriptions are generally inadequate or misleading. These results bring into doubt the arguments used by Rose (1929) to report <i>A. bifilosa</i> var. <i>inermis</i>. A single unified species, <i>A. bifilosa</i> (Giesbrecht), is suggested here, with some of the variation in its form being detailed. We believe errors may have occurred because of the angle from which features were previously examined, and because some of the features could be missed using light microscopy.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"<i>Acartia bifilosa</i> (Copepoda: Calanoida): a clarification of the species and its varieties <i>inermis</i> and <i>intermedia</i>","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-14 01:31:07.499868","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1998,"MonPub":null,"DateUpdate":"2003-09-19","DateCreate":"2003-09-19","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000074512800007","VABBcode":null,"OpenAcc":0,"DOI":"10.1093/plankt/20.6.1119"},"refs":null,"anarec":{"AnaID":39602,"PubliDate":1998,"Pagination":"1119-1130","XtraPublOfAnaID":null,"ISBN":null,"Volume":"20","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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