North Sea Whitefish Survey: 2011

The estimated total number of herring, mean weight, mean length and biomass per age and maturity stage in each of the surveyed strata are given in Table 6 and 7 for North Sea

Survey strata used to pool length frequency distributions of herring and to raise NASC’s by rectangle to numbers and biomass during the July 2012 North Sea herring acoustic survey

North Sea haddock catch numbers per hour at age recorded by the ICES IBTS quarter three survey tows surrounding and within each of the fishing areas surveyed by the

Mean length, mean weight, biomass (thousands of tonnes) and numbers (millions) breakdown by age and maturity per stratum obtained during the July 2003 North Sea hydro acoustic

Mean length, mean weight, biomass (thousands of tonnes) and numbers (millions) breakdown by age and maturity per stratum obtained during the July 2004 North Sea hydro acoustic

The Norwegian Defence Research Establishment (FFI) has for decades been doing hydrographical surveillance in prioritized areas. In connection with this work, FFI has also

spawners ·in the. North Sea and West of Scotland and Baltic Stocks .. Where .the survey areas • for individual vessels overlap the effort·weightedmean

brood strength variations in various North Sea fish, with regard to methods of prediction. Variations in brood strength in the North Sea haddock in the light