{"refrec":{"BRefID":57338,"RR":"<b>Hesp, S.A.; Potter, I.C.</b> (2003). Reproductive biology of <i>Rhabdosargus sarba</i> (Sparidae) in western Australian waters, in which it is a rudimentary hermaphrodite. <i>J. Mar. Biol. Ass. U.K. 83(6)</i>: 1333-1346. <a href=\"https://dx.doi.org/10.1017/S0025315403008786\" target=\"_blank\">https://dx.doi.org/10.1017/S0025315403008786</a>","BEntID":54924,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Mar. Biol. Ass. U.K. 83(6)</i>: 1333-1346. <a href=\"https://dx.doi.org/10.1017/S0025315403008786\" target=\"_blank\">https://dx.doi.org/10.1017/S0025315403008786</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Hesp, S.A.; Potter, I.C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Hesp, S.A.; Potter, I.C.","Englishabstract":"The reproductive biology of the tarwhine <span class=\"italic\">Rhabdosargus sarba</span> has been studied in three very different environments in Western Australia, namely the lower reaches of the Swan River Estuary and marine waters at the same latitude, i.e. ≈32°S, and a large subtropical marine embayment (Shark Bay) approximately 800 km further north. A macroscopic and histological examination of the gonads demonstrated that <span class=\"italic\">R. sarba</span> is typically a rudimentary hermaphrodite in Western Australian waters, i.e. the juveniles develop into either a male or female in which the ovarian and testicular zones of the gonads, respectively, are macroscopically undetectable. This contrasts with the situation in the waters off Hong Kong and South Africa where <span class=\"italic\">R. sarba</span> is reported to be a protandrous hermaphrodite. Although <span class=\"italic\">R. sarba</span> spawns between mid-late winter and late spring in each water body, the onset of spawning in the estuary is delayed until salinities have risen well above their winter minima. Although males and females attain sexual maturity at very similar lengths in the Swan River Estuary and Shark Bay, i.e. each <span class=\"italic\">L</span><span class=\"sub\">50</span> for first maturity lies between 170 and 177 mm total length (TL), they typically reach maturity at an earlier age in the former environment, i.e. 2 vs 3 years old. During the spawning period, only 25 and 12% of the males and females, respectively, that were caught between 180 and 260 mm TL in nearshore marine waters were mature, whereas 94 and 92% of the males and females, respectively, that were collected in this length-range over reefs, were mature. This indicates that <span class=\"italic\">R. sarba</span> tends to move offshore when it has become ‘physiologically’ ready to mature. The <span class=\"italic\">L</span><span class=\"sub\">50</span>s at first maturity indicate that the minimum legal length in Western Australia (230 mm TL) is appropriate for managing this species.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Reproductive biology of <i>Rhabdosargus sarba</i> (Sparidae) in western Australian waters, in which it is a rudimentary hermaphrodite","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-22 01:31:29.211164","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2003,"MonPub":null,"DateUpdate":"2020-09-08","DateCreate":"2004-02-11","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000188941800031","VABBcode":null,"OpenAcc":0,"DOI":"10.1017/S0025315403008786"},"refs":null,"anarec":{"AnaID":57338,"PubliDate":2003,"Pagination":"1333-1346","XtraPublOfAnaID":null,"ISBN":null,"Volume":"83","Issue":"6","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43277,"SerRR":"Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge.  ISSN 0025-3154; e-ISSN 1469-7769","StandardTitleSer":"Journal of the Marine Biological Association of the United Kingdom","ISSN":"0025-3154","AbbrevSer":"J. Mar. Biol. Ass. U.K.","StandardTitleMon":null,"StartPage":1333,"Pages":14,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Hesp","Firstname":"S. 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