title: Population parameters of roach, white bream and perch in the lake Ozeryavki (Sebezhsky national park)
abstract: Objective: to characterize age-length composition of fish population in the lake Ozeryavki at National Park «Sebezhsky» and to estimate the density and biomass of main species using A method for estimating fish density through the catches of gillnets Methods: a method for estimating density by catches of gill nets applied to the catches of different mesh size. Methods: a method for estimating density by catches of gill nets applied to the current data. Novelty: estimates of mortality of 3 main s
journal: Trudy VNIRO