{"refrec":{"BRefID":331938,"RR":"<b>Broadhurst, M.K.; Brand, C.P.; Uhlmann, S.S.</b> (2008). Mortality of discards from southeastern Australian beach seines and gillnets. <i>Dis. Aquat. Org. 80</i>: 51-61. <a href=\"https://dx.doi.org/10.3354/dao01904\" target=\"_blank\">https://dx.doi.org/10.3354/dao01904</a>","BEntID":325550,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Dis. Aquat. Org. 80</i>: 51-61. <a href=\"https://dx.doi.org/10.3354/dao01904\" target=\"_blank\">https://dx.doi.org/10.3354/dao01904</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Broadhurst, M.K.; Brand, C.P.; Uhlmann, S.S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Broadhurst, M.K.; Brand, C.P.; Uhlmann, S.S.","Englishabstract":"Two experiments were done in an Australian estuary to quantify the mortalities and contributing factors for key species discarded during 8 and 9 deployments of commercial beach (or shore) seines and gillnets, respectively. In both experiments, bycatches (2347 individuals comprising 16 species) were handled according to conventional practices and assessed for immediate mortalities before live samples of selected species were discarded into replicate cages along with appropriate controls, and monitored for short-term mortalities (≤10 d). All of the seined or gilled fish were alive prior to discarding. During the beach seine experiment, 20% of caged seined-and-discarded surf bream <i>Acanthopagrus australis</i> (n = 290) were dead after 5 d, with most mortalities occurring between the second and fifth day. In the gillnet experiment, 42 and 11% of gilled-and-discarded <i>A. australis</i> (n = 161) and lesser salmon catfish <i>Neoarius graeffei</i> (n = 67), respectively, died during a 10 d monitoring period, mostly within the first 5 d. There were no deaths in any controls for these fish. Mixed-effects logistic models revealed that the mortality of <i>A. australis</i> discarded from both gears was significantly (p &lt; 0.01) and negatively correlated with their total length, while <i>N. graeffei</i> had a significantly (p &lt; 0.05) greater (5-fold) probability of dying when jellyfish <i>Catostylus</i> sp. were present in the gillnet. Simple modifications to the operations of beach seines and gillnets and/or post-capture handling procedures, such as close regulation of size selectivity for the target species, careful removal of fish from meshes, and abstention from setting during high abundances of jellyfish will maximise the survival of discarded bycatch.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Mortality of discards from southeastern Australian beach seines and gillnets","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-10 01:32:33.353423","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Beach seine · Bycatch · Discards · Gillnet · Mortality · Unaccounted fishing mortality","OtherDescriptors":null,"Notes":null,"AnaPub":2008,"MonPub":null,"DateUpdate":"2020-12-14","DateCreate":"2020-12-14","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000257605200007","VABBcode":null,"OpenAcc":1,"DOI":"10.3354/dao01904"},"refs":null,"anarec":{"AnaID":331938,"PubliDate":2008,"Pagination":"51-61","XtraPublOfAnaID":null,"ISBN":null,"Volume":"80","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42792,"SerRR":"Diseases of Aquatic Organisms. Inter Research: Oldendorf/Luhe.  ISSN 0177-5103; e-ISSN 1616-1580","StandardTitleSer":"Diseases of Aquatic Organisms","ISSN":"0177-5103","AbbrevSer":"Dis. Aquat. 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