{"refrec":{"BRefID":352309,"RR":"<b>Frédérich, B.; Heindler, F.M.; Christiansen, H.; Dettaï, A.; Van de Putte, A.; Volckaert, F.A.M.; Lepoint, G.</b> (2022). Repeated morphological diversification in endemic Antarctic fishes of the genus <i>Trematomus</i>. <i>Belg. J. Zool. 152</i>: 55–73. <a href=\"https://dx.doi.org/10.26496/bjz.2022.99\" target=\"_blank\">https://dx.doi.org/10.26496/bjz.2022.99</a>","BEntID":350016,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Belg. J. Zool. 152</i>: 55–73. <a href=\"https://dx.doi.org/10.26496/bjz.2022.99\" target=\"_blank\">https://dx.doi.org/10.26496/bjz.2022.99</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Frédérich, B.; Heindler, F.M.; Christiansen, H.; Dettaï, A.; Van de Putte, A.; Volckaert, F.A.M.; Lepoint, G.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Frédérich, B. <i>et al.</i>","Englishabstract":"The iterative nature of ecomorphological diversification is observed in various groups of animals. However, studies explicitly testing the consistency of morphological variation across and within species are scarce. Antarctic notothenioids represent a textbook example of adaptive radiation in marine fishes. Within Nototheniidae, the endemic Antarctic genus <em>Trematomus</em> consists of 15 extant species, some with documented large intraspecific variability. Here, we quantify head shape disparity in 11 species of <em>Trematomus</em> by landmark-based geometric morphometrics, and we illustrate repeated events of divergence and convergence of their head morphology. Taking advantage of the polymorphism observed in some species of <em>Trematomus</em>, we also show that two closely related species or clades (e.g., <em>Trematomus bernacchii</em> and <em>T. hansoni</em>) are characterised by the same level of morphological disparity as observed at the level of the entire genus. Interestingly, the same main axes of shape variation are shared between and within species, indicating repeated morphological diversification. Overall, we illustrate a similarity of intra- and interspecific patterns of phenotypic diversity providing new insights into the mechanisms that underlie the diversification of Antarctic fishes.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Repeated morphological diversification in endemic Antarctic fishes of the genus <i>Trematomus</i>","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-23 01:33:16.634406","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Convergence, ecomorphology, geometric morphometrics, head shape, macroevolution, microevolution, phylomorphospace","OtherDescriptors":null,"Notes":null,"AnaPub":2022,"MonPub":null,"DateUpdate":"2022-06-13","DateCreate":"2022-06-03","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000788774600001","VABBcode":null,"OpenAcc":1,"DOI":"10.26496/bjz.2022.99"},"refs":null,"anarec":{"AnaID":352309,"PubliDate":2022,"Pagination":"55–73","XtraPublOfAnaID":null,"ISBN":null,"Volume":"152","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":44108,"SerRR":"Belgian Journal of Zoology. Koninklijke Belgische Vereniging voor Dierkunde = Société royale zoologique de Belgique: Gent.  ISSN 0777-6276; e-ISSN 2295-0451","StandardTitleSer":"Belgian Journal of Zoology","ISSN":"0777-6276","AbbrevSer":"Belg. J. 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