Effects of beamtrawl fishery on the bottom fauna in the North Sea : III : the 1991 studies

Study 1: Catch composition and survival of fish and benthic invertebrates in commercial beamtrawls for sole- and plaice fishery in the Southern North Sea / ed. M. Fonds, B.L. Verboom and K. Groeneveld. Study 2: Penetration depth of beamtrawl gear / ed. C. Laban. Study 3: Long term effects of ...