ХРАНИТЕЛЕН СПЕКТЪР И СЕЛЕКТИВНОСТ НА ХРАНЕНЕ НА ЛИЧИНКИТЕ НА БЯЛАТА РИБА (SANDER LUCIOPERCA L.)
Ключови думи :
zooplankton, pikeperch, fry, body size, fish pond, selectivityАбстракт
Diet and growth of pikeperch fry (Sander lucioperca) reared in fish pond was investigated for period
of 32 days. In body size about 11.0 mm main food items are zooplankton representatives of the genus
Bosmina and partly by Copepoda. After reaching a length of 16-19 mm pikeperch fry begin to consume
large representatives of genus Daphnia and genus Moina. From 25-28 mm body length begins consumption of larval forms of insects (Diptera) and others benthic organisms.
The study showed that over a period of 24 days the pikeperch fry increased from about 8 mm to about
32 mm or 4 times.
Литература (библиография)
Branstrator, D., J. Lehman, 1991. Invertebrate predation in Lake Michigan: Regulation of Bosmina longirostris by Leptodora kindtii. Limnol. Oceanogr., 36(3):483-495.
Ginter, K., K. Kangur, A. Kangur, P. Kangur, M. Haldna, 2012. Shifts in Prey Selection and Growth of Juvenile Pikeperch (Sander lucioperca) over Half a Century in a Changing Lake Võrtsjärv. Open Journal of Applied Sciences, 2:168-176.
Ginter, K., K. Kangur, A. Kangur, P. Kangur, M. Haldna, 2011. Diet patterns and ontogenetic diet shift of pikeperch, Sander lucioperca (L.) fry in lakes Peipsi and Võrtsjärv (Estonia). Hydrobiologia, 660:79–91.
Ljunggren, L., 2002. Growth response of pikeperch larvae in relation to body size and zooplankton abundance. Journal of Fish Biology, 60, 2:405–414.
Ostaszewska, T., 2005. Developmental changes of digestive system structures in pikeperch (Sander lucioperca L.). Electronic Journal of Ichthyology, 2: 65-78.
Peterka, J., J. Matena, J. Lipka, 2003. The diet and growth of larval and juvenile pikeperch (Stizostedion lucioperca). A comparative study of fishponds and reservoir. Aquaculture international, 11: 337-348.
Prikryl, I.,1980. Determination of zooplankton biomass on the basis of length–weight relations. – Bull. VURH Vodnany, 1, pp. 13-18
Steffens, W., 1960. Emahrung und Wachstum des jungen Zanders (Lucioperca lucioperca) in Teichen. Z, Ficherei N.F., 9:161-271.
Steffens, W., F. Geldhauser , P. Gernster, H. Volker, 1996. German experiences in the propagation and rearing of fingerling pikeperch (Stizostedion lucioperca). Ann. Zool. Fennici, 33:627-634.
Verreth, J., K. Kleyn, 1987. The effect of biomanipulation of the zooplankton on the growth, feeding and survival of pikeperch (Stizostedion lucioperca) in nursing ponds. Journal of Applied Ichthyology, 3,1:13–23.
Файлове за сваляне
Публикуван
Брой
Раздел (Секция)
Категории
Лиценз
Авторски права (c) 2014 Животновъдни науки
Публикация с Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
