Published in Scientific Papers. Series D. Animal Science, Vol. LXV, Issue 2
Written by Daniela Cristina IBĂNESCU, Lorena DEDIU
The main aim of the paper is to investigate the condition of the population of this fish species in a sector of the Romanian Danube River. The common bream is an important species in commercial catches, therefore the knowledge of its growth parameters is important for management of the multi - species fishery. The study is based on a sample of 1580 specimens caught with a total biomass of 197.66 kg. The study took place between 2018 and 2019. Our objective was to estimate the growth parameters (von Bertalanffy) L∞, k, t and the mortality rates (Z, M, F) for the bream population (Abramis brama, Linnaeus, 1758) in the Danube. The relationship between length - weight (L-W) in the study period for common bream population is ? = 0.0201 ∗ ?t2,9212. Von Bertalanffy growth parameters were found as, asymptotic length Lꚙ= 49.35 cm, growth coefficient (K) = 0.37 yr-1. The estimated values of the mortality rates for the studied population are: total mortality (Z) is 1. 51, the natural (M) reaches 0.55. and fishing mortality (F) is .0.96.
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{simplepopup popup="false" name="Citation64"}IBANESCU D.C., DEDIU L. 2022, GROWTH OF BREAM, ABRAMIS BRAMA (LINNAEUS, 1758), IN THE ROMANIAN SECTION OF THE DANUBE RIVER. Scientific Papers. Series D. Animal Science, Vol. LXV, Issue 2, ISSN 2285-5750, 437-441. {/simplepopup}