Preliminary rearing outcomes of Siberian sturgeon, Acipenser baerii Brandt, juveniles in autonomous hatching and rearing modules
Author:
Piotrowska Iwona1ORCID, Kozłowski Michał2ORCID
Affiliation:
1. Department of Sturgeon Fish Breeding , National Inland Fisheries Research Institute , Olsztyn , Poland, 11-610 Pozezdrze, Pieczarki 50 , Poland 2. Department of Lake Fisheries , National Inland Fisheries Research Institute , Olsztyn , Poland, 11-500 Giżycko, Rajska 2 , Poland
Abstract
Abstract
This study analyzed the rearing indicators of Siberian sturgeon (Acipenser baerii) juveniles reared in tanks of different shapes and at various stocking densities. Rearing was conducted in autonomous hatching and rearing modules. Fish of an average body weight of 47.3±1.0 g were divided into four experimental groups: CL, RL, CH, and RH, which differed in stocking density (20 specimens and 50 specimens) and tank shape (C – circular, R – rectangular). The experiment ran for 28 days. Two-factor analysis indicated that lower stocking density significantly affected the final body weight of juvenile Siberian sturgeon, while tank shape had no effect on growth. The results of the current study on rearing Siberian sturgeon juveniles indicated that tanks of different shapes can be applied, but faster growth was obtained at a lower stocking density.
Publisher
Walter de Gruyter GmbH
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