{"refrec":{"BRefID":139961,"RR":"<b>Brouwer, S.L.; Griffiths, M.H.</b> (2006). Management of <i>Argyrozona argyrozona</i> (Pisces: Sparidae) in South Africa based on per-recruit models. <i>Afr. J. Mar. Sci. 28(1)</i>: 89-98. <a href=\"https://dx.doi.org/10.2989/18142320609504136\" target=\"_blank\">https://dx.doi.org/10.2989/18142320609504136</a>","BEntID":133454,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Afr. J. Mar. Sci. 28(1)</i>: 89-98. <a href=\"https://dx.doi.org/10.2989/18142320609504136\" target=\"_blank\">https://dx.doi.org/10.2989/18142320609504136</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Brouwer, S.L.; Griffiths, M.H.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Brouwer, S.L.; Griffiths, M.H.","Englishabstract":"Carpenter <i>Argyrozona argyrozona</i> is an endemic sparid that constitutes an important component of the South African linefishery between Cape Agulhas and Port Alfred, where it exists as two stocks; one on the central Agulhas Bank and the other on the eastern Agulhas Bank. Spawner biomass-per-recruit (SB/R), fecundityper-recruit (Egg/R) and yield-per-recruit (Y/R) models were used to model both South African carpenter stocks. Owing to the allometric relationship between annual fecundity and individual size, Egg/R ratios were between 40% and 74% of SB/R at equivalent fishing mortality (F). Egg/R ratios account for allometric increases in fecundity with size/age, and are therefore regarded as better estimators of reproductive potential. It is shown that the current length at first capture (L<sub>c</sub>) of 250mm TL and F (at M = 0.1) will reduce Egg/R to 6.41% of the pristine value in the eastern Agulhas Bank population and to between 6.06% and 14.15% on the central Agulhas Bank, indicating that both stocks are heavily overfished. An increase in L<sub>c</sub> from 250mm to 350mm TL and a 70% reduction in commercial fishing effort is recommended to attain a target reference point of 40% Egg/RF=0. Bag frequencies indicate that a reduction in daily bag limit from 10 fish person<sup>-1</sup>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Management of <i>Argyrozona argyrozona</i> (Pisces: Sparidae) in South Africa based on per-recruit models","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-05-21 01:32:16.154777","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2006,"MonPub":null,"DateUpdate":"2009-07-27","DateCreate":"2009-07-27","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000237987300009","VABBcode":null,"OpenAcc":0,"DOI":"10.2989/18142320609504136"},"refs":null,"anarec":{"AnaID":139961,"PubliDate":2006,"Pagination":"89-98","XtraPublOfAnaID":null,"ISBN":null,"Volume":"28","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":78939,"SerRR":"African Journal of Marine Science. NISC/Taylor & Francis: Grahamstown.  ISSN 0257-7615; e-ISSN 1814-2338","StandardTitleSer":"African Journal of Marine Science","ISSN":"0257-7615","AbbrevSer":"Afr. J. Mar. 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