{"refrec":{"BRefID":143972,"RR":"<b>Vieira, A.R.; Farias, I.; Figueiredo, I.; Neves, A.; Morales-Nin, B.; Sequeira, V.; Martins, M.R.; Gordo, L.S.</b> (2009). Age and growth of black scabbardfish (<i>Aphanopus carbo</i> Lowe, 1839) in the southern NE Atlantic. <i>Sci. Mar. (Barc.) 73(Suppl. 2)</i>: 33-46. <a href=\"https://dx.doi.org/10.3989/scimar.2009.73s2033\" target=\"_blank\">https://dx.doi.org/10.3989/scimar.2009.73s2033</a>","BEntID":137132,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Sci. Mar. (Barc.) 73(Suppl. 2)</i>: 33-46. <a href=\"https://dx.doi.org/10.3989/scimar.2009.73s2033\" target=\"_blank\">https://dx.doi.org/10.3989/scimar.2009.73s2033</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Vieira, A.R.; Farias, I.; Figueiredo, I.; Neves, A.; Morales-Nin, B.; Sequeira, V.; Martins, M.R.; Gordo, L.S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Vieira, A.R. <i>et al.</i>","Englishabstract":"Though whole otoliths are commonly adopted in age assignment of black scabbardfish, this study showed that sectioned otoliths are more appropriate because growth increments are more evident and ageing of larger specimens is easier. Vertebrae are not the most appropriate structure for ageing but, in the absence of otoliths, this structure may be useful in a-e assignment of this species. To verify possible differences between age and growth among specimens from the southern NE Atlantic. 1075 sectioned otoliths from specimens from mainland Portugal, 436 from Madeira and 107 from the Azores were analysed and the distribution of length-at-age obtained for each sex and region was determined. Significant differences were obtained in the comparison of the distribution of length-at-age between Madeira, the mainland and the Azores. The von Bertalanffy growth model was applied to back-calculated mean length-at-age data from Madeira (L-t = 1586 [1 - e(-0.119(t+2.282))] females: L-t = 1461 [1 - e(-0.146(t+1.441))] males) and mainland (L-t = 1354 [1 - e(-0.170()t+(2,040))] females: L-t = 1240 [1 - e(-0.208(t+1.654))] males), and significant differences in the growth equations were obtained. Furthermore, a regression tree model was used to investigate how growth is conditioned by reproduction. The results showed a clear separation between individuals from the two areas. both females and males from the mainland (non-reproductive individuals) being characterised by a lower gonadosomatic index and a lower age.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Age and growth of black scabbardfish (<i>Aphanopus carbo</i> Lowe, 1839) in the southern NE Atlantic","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-23 01:32:10.456586","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Aphanopus carbo; black scabbardfish; whole and sectioned otoliths;vertebrae; precision estimators; age and growth","OtherDescriptors":null,"Notes":null,"AnaPub":2009,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2010-03-02","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000274479300004","VABBcode":null,"OpenAcc":1,"DOI":"10.3989/scimar.2009.73s2033"},"refs":null,"anarec":{"AnaID":143972,"PubliDate":2009,"Pagination":"33-46","XtraPublOfAnaID":null,"ISBN":null,"Volume":"73","Issue":"Suppl. 2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43791,"SerRR":"Scientia Marina (Barcelona). Consejo Superior de Investigaciones Científicas. Institut de Ciènces del Mar: Barcelona.  ISSN 0214-8358; e-ISSN 1886-8134","StandardTitleSer":"Scientia Marina (Barcelona)","ISSN":"0214-8358","AbbrevSer":"Sci. Mar. 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