{"refrec":{"BRefID":3124,"RR":"<b>Kynoch, R.J.; Ferro, R.S.T.; Zuur, G.</b> (1999). The effect on juvenile haddock by-catch of changing cod-end twine thickness in EU trawl fisheries. <i>Mar. Technol. Soc. J. 33(2)</i>: 61-72","BEntID":3124,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Mar. Technol. Soc. J. 33(2)</i>: 61-72","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Kynoch, R.J.; Ferro, R.S.T.; Zuur, G.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Kynoch, R.J.; Ferro, R.S.T.; Zuur, G.","Englishabstract":"The selectivity of North Sea haddock (Melanogrammus aeglefinus) was measuredfor 100 mm mesh trawl cod-ends made of three different twines: 4 mm double twineused commercially until the introduction of thicker twines during the 1990's; 6 mmdouble twine and 8 mm single twine proposed by the European Commission asmaximum thicknesses starting in January 2000. A significant difference in selectivitywas found between the 4 mm double twine and the two thicker, stiffer twines. The50% retention length was increased by almost 4 cm when using the thinner twine.Models of the selectivity of these cod-ends have been developed, taking intoaccount small mesh size differences and using catch size as a variable and sea stateand twine size as categorical variables. The benefits of using a thinner twine cod-endare illustrated by showing the effect on the catch of juvenile and marketable fish froma typical North Sea population of haddock. The potential increases in survival of the2+ and 3+ year classes of such a haddock stock are estimated to be 17% and 12%respectively.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The effect on juvenile haddock by-catch of changing cod-end twine thickness in EU trawl fisheries","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1999,"MonPub":null,"DateUpdate":"2000-08-30","DateCreate":"2000-08-30","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000081948800010","VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":3124,"PubliDate":1999,"Pagination":"61-72","XtraPublOfAnaID":null,"ISBN":null,"Volume":"33","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43528,"SerRR":"Marine Technology Society Journal. 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