Study On The Effects of Polyculture of the Sterlet (Acipenser Ruthenus) Fingerlings and European Catfish (Silurus Glanis) on Bioproductive Performances of These Species in Recirculating Aquaculture Systems
Keywords:
European catfish, polyculture, RAS, sterletAbstract
The aim of this study was to evaluate the effects of polyculture of the sterlet (Acipenser ruthenus) fingerlings with
european catfish (Silurus glanis) (20 – 30%) into recirculating aquaculture system on growth dynamic of the fish and
tank’s bioproductivity. Two variants of polyculture have been tested during a period of 42 days in duplicate: V1-sterlet
with 20% catfish (600 sterlets and 120 catfish); V2-sterlet with 30% catfish (600 sterlets and 180 catfish). The control
group (C) contains sterlet in monoculture (600 sterlets). After 42 days of polyculture of the sterlet fingerlings with
catfish 20% (V1) or 30% (V2) there were no significant differences (p>0.05) in sterlets’ growth dynamic among the
three variants. The bioproductive indices were better in the polyculture variant where sterlets were farmed with 30%
catfish. Polyculture of catfish and sterlet could be a good way to positively influence the fingerling sterlet farming in
RAS, having a beneficial impact on tank’s bioproductivity. A significant plus of fish biomass (catfish) resulted by
means of valorisation of the unconsumed food by the sterlet, was obtained in both polyculture variants.
References
Bronzi, P., Rosenthal, H., Gessner J., Global sturgeon
aquaculture production: an overview, J. Appl. Ichtyol,
, 169-175.
Mihailov, S., Mihoc, N., Lalescu, D., Cristina, R.,
Voia S., Grozea, A., Could sterlet (Acipenser ruthenus)
as polyculture species to positively influence the
pikeperch (Sander lucioperca) farming in recirculating
aquaculture systems?, Scientific Papers. Series D.
Animal Science, 2020, LXIII (2).
Mihailov, S., Mihoc N., Simiz E., Berzava, L.,
Cziszter, L., Grozea, A., The Polyculture of Sterlet
(Acipenser ruthenus) and Carp (Cyprinus carpio) in
Recirculating Aquaculture Systems, The Effects on Fish
Growth Dynamic and Production; Scientific Papers:
Animal Science and Biotechnologies, 2020, 53 (2).
Nicula, M., Szelei, Z. T., Păcală, N., Bura, M., Simiz,
E., Erina, S., Hotea, M., Marcu, Adela, Assessement of
Growth Performances of Juvenile Sterlet Acispenser
ruthenus Raised in a Recirculating Aquaculture System,
Scientific Papers: Animal Science and Biotehnologies,
, 48(2), 108-114.
Sion, (Badalan) C., Cercetări privind evaluarea
plasticității tehnologice a speciei Acipenser ruthenus
(Linne, 1758), în condițiile unui sitem recirculant de
acvacultură industrială. Teză de doctorat, Dunărea de
Jos Galați, 2010.
Muscalu, R., Muscalu, Cristina, Nagy, M., Bura, M.,
Szelei, Z. T., Studies on wels catfish (Silurus glanis)
development during cold season as an auxiliary speciess
in sturgeon recirculated aquaculture systems – AACL
Bioflux, 2010, 3(5).
Furdean, S., Lalescu, D., Mihailov, S.A., Grozea, A.,
Growth dynamic of the main morphological traits in a
sterlet (Acipenser ruthenus) population reared into
recirculating aquaculture system, from 2 to 6 months
old, Research Journal of Agricultural Science, 2017,
(4), 128-134.
Mihailov, S., Mihoc, N., Lalescu, D., Grozea, A.,
Correlations and Interdependencies of the Main
Morphological Traits in Sterlet (Acipenser ruthenus)
Fingerlings, Reared in Recirculating Aquaculture
System, Scientific Papers: Animal Science and
Biotechnologies, 2018, 51(2), 121-124.
Fernandes, I. M., Bastos, Y. F, Barreto, D. S.,
Lourenco, L. S., Penha, J. M., The efficacy of clove oil
as an anaesthetic and in euthanasia procedure for smallsized tropical fishes, Brazilian Journal of Biology, 2017,
(3), 444-450.
