Wstępne wyniki wpływu podchowu wylęgu troci (salmo trutta m. Trutta l. 1758) na żywym zooplanktonie na przeżywalność i wzrost w warunkach naturalnych
Journal Title: Roczniki Naukowe Polskiego Związku Wędkarskiego - Year 2010, Vol 23, Issue
Abstract
The study describes an experiment in feeding trout fry on three diets: the first consisted of only zooplankton, second was a mixture of zooplankton and dry food, and third was only dry food. Each diet was applied before stocking and the effect on survival, increase in body mass and body length were evaluated. The best parameters prior to stocking were obtained for the fry fed on dry food and a mixed diet and they were statistically significantly higher than those obtained for the fry fed on zooplankton (P < 0,05). However, after stocking the situation was opposite and the fry fed on zooplankton was characterised by the highest survival and the greatest increase in the body mass and length, statistically significantly higher than the corresponding parameters of the fry fed on dry diet (P < 0,05).
Authors and Affiliations
Robert Czerniawski, Józef Domagała, Małgorzata Pilecka-Rapacz
Keywords
Related Articles
- EP ID EP73822
- DOI -
- Views 111
- Downloads 0
Ichtiofauna rzeki Elbląg
Fish distribution and abundance were investigated in the Elbląg River system (Vistula Lagoon catchment area) in years 2004–2009. A total of 3522 fish and lampreys individuals were captured at 32 sites by electrofishing a...
Długoterminowe zmiany w ichtiofaunie polskiej części dorzecza Czarnej Orawy
Long-term (1962–2011) changes and tendencies in the structure of fish communities in the Czarna Orawa River catchment were determined on the basis of available literature data, and own data collected in 2010–2011. Main f...
Ichtiofauna systemu rzeki Brdy
Research on species composition, distribution, and abundance of fish fauna in the Brda River system (left-bank tributary of the lower Vistula River) was carried out in 2011–2014. A total of 15863 individuals representing...
Ichtiofauna małych dopływów dolnej Wisły. Część I - między Włocławkiem a Świeciem
This paper describes fish and lampreys abundance and species composition in the small tributaries of the lower Vistula River between the towns of Włocławek and Świecie. The description is based on electrofishing investig...
Ichtiofauna dorzecza Motławy
The fish fauna composition was investigated in the Motława River system by the electrofishing method from August to October 2010. A total of 6196 fish and lampreys individuals representing 31 species were captured in 57...