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RESEARCHES CONCERNING FOOD AND FEEDING BEHAVIOR OF PADDLEFISH (POLYODON SPATHULA, WALB. 1792) IN LANDSCAPED AQUATIC ECOSYSTEMS
Abstract
This paper presents results of research on feeding behavior of paddlefish (Polyodon spathula, Walb. 1792), performed at the Fish Culture Research and Development Station Nucet, DпїЅmbovi?a, between 2002 -2007. The results confirmed the planctonofag character of this species. Paddlefish food consists primarily of zooplankton, insects and insect larvae, plant debris and detritus, identified in the intestinal contents. Feeding behavior is differentiated by age and size of fish. During the first days of life, juvenile paddlefish feeds active on zooplankton exclusively by hunting and capture. After about 30-35 days the juvenile paddlefish develop the filter apparatus, they feed by catching and filtering, depending on the density of zooplankton organisms. The filter apparatus of the paddlefish fry is fully developed and functional when they reach the size of about 400 mm. From this size paddlefish fry start feeding exclusively by filtration. Analyzing the digestive tract content from paddlefish aged 3-8 years result that the trophic spectrum is generally the same. The dominance of a particular group of items is given by abundance in the growth medium. The presence of the high percentage of a group of zooplankton organisms in the digestive tract of paddlefish corresponds to their peak abundance in the aquatic environment. At the older ages paddlefish is less selective feeding.
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References14
Rosen, R. A., D.C. Hales. 1981 - Feeding of paddlefish, Polyodon spathula . Copeia 1981 (2) : 441-455.
Houser, A., M.G. Bross 1959- Observations on the growth and reproduction of the paddlefish. Transactions of the American Fisheries Society 88 (1) 50-52
Ruelle, R., P.L. Hudson. 1977- Paddlefish (Polyodon spathula) growth and food of young of the year and a suggested technique for measuring length. Transactions of the American Fisheries Society 106 (6): 609-613.
Rosen R. A., D.C. Hales (1981). Feeding of paddlefish, Polyodon spathula . Copeia 1981 (2): 441-455.
Michaletz, P.H., C.F. Rabeni, W.W. Taylor, T.R. Russell, 1982- Feeding ecology and growth of young -of-the-year paddlefish in hatchery ponds. Transactions of the American Fisheries Society 111 (6) :700-709.
Zhu, A. M., Liang, Y. Q., Huang, D. M., Hu, X. J., Wu, S. G. and Hu, C. L. (2009) Study on starting-feeding size and food selection of larval and juvenile paddlefish, Acta Hydrobiologica Sinica, 33 1202-1206.
Vinogradov, V., L. Erohina, N., Voropaev, A., A.Lavrova 1975- Veslonosjvaia planktonaia seti. Rabavodstvo i Rabalovstvonr.4 /1975: 18-23.
Graham, L.K. , E.J. Hamilton, T.R. Russell., C.E. Hicks, 1986 - The culture of paddlefish - a review of methods. in The paddlefish: status, management and propagation.” North Central Division, American Fisheries Society,Special Publication Number 7/1986: 78-94
Chen, J. Y. (2011) Discussion of value of replacing big head carp with paddlefish, Current Fisheries, 6 62-66.
Tadesse, F., Seyoum, M., Michael, S. (2011) Zooplankton community structure and ecology of the tropical-highland Lake Hayq, Ethiopia, Limnologica, 41 389-397.
Michaletz, P.H., C.F. Rabeni, W.W. Taylor, T.R. Russell, 1983 - Factors affecting Daphnia declines in paddlefish rearing ponds. The Progressive Fish -Culturist 45(2) : 76-80.
Kroll, K.J., Van Enennoam, J.P., Doroshov S. I., J. Lineares 1994- Growth and Survival of Paddlefish Fry in the Laboratory on Natural and artificial Dieta. The Progressive Fish -Culturist 56 (1) :169-174 .
Melcenkov, E. A., 1991- Rabnovostno biologhicescaia harasteristica veslonosa Polyodon spathula (Walb.) kak obieckta rasvedenia. Autoreferat , Moscova 1991.
Mims, S.D., J.A. Clark, J.C.Williams, D.R. Bayne, 1995 -Factor Influencing Zooplacton Production in Organically Fertilized Ponds for Culture of Paddlefish, Polyodon spathula. Journal of Applied Aquaculture, Vol. 5 (1)/ 1995 : 29-44 .
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