{"refrec":{"BRefID":78267,"RR":"<b>van Marlen, B.; Bergman, M.J.N.; Groenewold, S.; Fonds, M.</b> (2005). New approaches to the reduction of non-target mortality in beam trawling. <i>Fish. Res. 72(2-3)</i>: 333-345. <a href=\"https://dx.doi.org/10.1016/j.fishres.2004.10.019\" target=\"_blank\">https://dx.doi.org/10.1016/j.fishres.2004.10.019</a>","BEntID":73807,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Fish. Res. 72(2-3)</i>: 333-345. <a href=\"https://dx.doi.org/10.1016/j.fishres.2004.10.019\" target=\"_blank\">https://dx.doi.org/10.1016/j.fishres.2004.10.019</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"van Marlen, B.; Bergman, M.J.N.; Groenewold, S.; Fonds, M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"van Marlen, B. <i>et al.</i>","Englishabstract":"This paper presents experiments with modified beam trawls aimed at reducing discard rates and direct mortality of benthic in-fauna and epi-fauna without affecting the level of landings. Drop-out panels made of large meshes in the belly of the net were effective in reducing by-catch, but the penalty was a loss in landings (particularly sole, plaice, dab). Effective release of heavy invertebrates (quahog, prickly cockle) seems possible. An alternative parabolic tickler chain arrangement did not reduce landings nor by-catch. Parallel chains seemed to offer more potential in reducing by-catch, particularly shellfish, but significant losses in landings also occurred. 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