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2. Distribution and food of roach (Rutilus rutilus (L.)) and perch (Perca fluviatilis L.) in the eutrophic Lake Årungen, Norway;Eie;Verh. Internat. Verein. Limnol.,1981
3. The selection of Clarias mossambicus (Peters) by nylon gill nets;Gulland;J. Cons. Int. Explor. Mer.,1961
4. Review of gillnet selectivity;Hamley;J. Fish. Res. Board Can.,1975
5. Sampling with gillnets;Hamley;EIFAC Tech. Pap.,1980