Volume 17
Issue 3/volume17
Fisheries
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume17/issue3/volume17/abs-14.html
RESULTS OF STOCKING EXPERIMENT WITH VIMBA BREAM (VIMBA VIMBA L.) REARED ON EITHER LIVE ZOOPLANKTON OR PREPARED FOOD
Robert Czerniawski, Józef Domagała, Tomasz Krepski, Łukasz Sługocki, Małgorzata Pilecka-Rapacz
Department of General Zoology, University of Szczecin, Szczecin, Poland
ABSTRACT
The effect of using live zooplankton in the hatchery for the survival and growth of hatchery-reared vimba bream in the wild was examined. A hypothesis that the fish fed on live zooplankton (LFG) during rearing would reach greater survival and faster growth rates in the wild than fodder-fed fish (PFG) was assumed. In the hatchery, from the first week of rearing the LFG achieved higher values of the length than the PFG. After the capture of the fish from the stream, the mean survival rate of the LGF (9.6%) was higher than those from the PFG (3.2%). The results of this study show that the live food given for hatchery-reared vimba bream affect their higher survival rate in the wild.
Key words: foraging skills, cyprinids, larvae rearing, fish restitution.
Robert Czerniawski
Department of General Zoology, University of Szczecin, Szczecin, Poland
Z. Felczaka 3C
71-412 Szczecin
Poland
phone: +48 91 444 16 24
email: czerniawski@univ.szczecin.pl
Józef Domagała
Department of General Zoology, University of Szczecin, Szczecin, Poland
Z. Felczaka 3C
71-412 Szczecin
Poland
phone: +48 91 444 16 24
email: jozef.domagala@univ.szczecin.pl
Tomasz Krepski
Department of General Zoology, University of Szczecin, Szczecin, Poland
Z. Felczaka 3C
71-412 Szczecin
Poland
Łukasz Sługocki
Department of General Zoology, University of Szczecin, Szczecin, Poland
Z. Felczaka 3C
71-412 Szczecin
Poland
Małgorzata Pilecka-Rapacz
Department of General Zoology, University of Szczecin, Szczecin, Poland
Z. Felczaka 3C
71-412 Szczecin
Poland
phone: +48 91 444 16 24
Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.