Influence of the date of autumn harvesting on the quality of discharged waters

• Autorzy: Kolasa-Jaminska B.
• Języki publikacji: EN

Abstrakty

EN

The rearing of carp K2-3 in polyculture with a grass- carp, silver carp and European catfish was carried out within 1995- 1997, in six (1995-1996) or in seven (in 1997) variants of ponds differed in stocking densities as well as in kind of feed fed. The objective of the present paper was to verify if the change of harvest date from September into November can affect the quality of discharged waters. Estimation of discharged water quality was made on the basis of following chemical factors: dissolved oxygen, water pH, total suspended matter, chemical oxygen demand CODMn, ammonia nitrogen, nitrate nitrogen, nitrite nitrogen and phosphates. The change of harvest date for 40 days improved markedly the quality of discharged water.

Słowa kluczowe

EN

pond; fish culture; water quality; date; water; autumn harvesting; carp pond; hydrochemical parameter

• Wydawca: -
• Czasopismo: Electronic Journal of Polish Agricultural Universities. Series Fisheries
• Rocznik: 2003
• Tom: 06
• Numer: 2
• Opis fizyczny: http://www.ejpau.media.pl/series/volume6/issue2/fisheries/art-02.html

Twórcy

autor

Kolasa-Jaminska B.

• Polish Academy of Sciences in Golysz, 43-520 Chybie, Poland

Bibliografia

• Augustyn D., 1996. Warunki meteorologiczne w sezonach hodowlanym 1995 i zimowym1994/1995 [Hydrometeorological conditions during the 1995 growing season and in winter 1994/1995]. Kom. Ryb.2, 25-27 [in Polish].
• Augustyn D., 1997. Warunki meteorologiczne w sezonie hodowlanym 1996 i zimie 1995/1996 [Hydrometeorological conditions during the 1996 growing season and in winter 1995/1996]. Kom. Ryb. 2, 12-16 [in Polish].
• Augustyn D., 1998. Warunki meteorologiczne w sezonach hodowlanym 1997 i zimowym 1996/1997 [Hydrometeorological conditions during the 1997 growing season and in winter 1996/1997]. Kom. Ryb. 2, 22-24 [in Polish].
• Guziur J., 1991. Analiza wieloczynnikowej intensyfikacji produkcji karpi towarowych (K2-3)oraz jej wpływ na ryby i środowisko [Multifactoral analysis of the table carp production intensity and its influence on fish and the environmental]. MIR, Gdynia [in Polish].
• Hermanowicz W., Dożańska W., Dojlido J., Koziorowski B., 1976. Fizyczno-chemiczne badanie wody i ścieków [Physico-chemical investigation of water and waste-water]. Arkady, Warszawa [in Polish].
• Jezierska-Madziar M., 1995. Wpływ sposobów wytwarzania pasz i poziomów intensyfikacji produkcji karpia na stopień zanieczyszczenia wód poprodukcyjnych [The influence of feed production method and intensity level of carp production on the contamination degree of post production water]. Rocz. AR Pozn. Rozpr. 263 [in Polish].
• Kudelska D., 1997. Ekologiczna ocena jakości wód w świetle projektów dyrektyw Wspólnot Euro-pejskich [Ecological estimation of the water quality according to the EU laws]. Konf. 17. Zjazdu Hydrobiologów Polskich, Poznań 8-11 September 1997. Sorus, Poznań, 18-19 [in Polish].
• Lin C.K., Shrestha M., Yi Y., Diana J.S., 2001. Management to minimize the environmental impacts of pond effluent: harvest draining techniques and effluent quality. Aquacultural Engineering 25, 125-135.
• Piotrowska-Opuszyńska W., 1990. Effect of extremely high doses of nitrogen and phosphorus on physico-chemical conditions in ponds and on carp rearing. Acta Hydrobiol. 31, 297-310.
• Szlauer B., Szlauer L., 1986. Doczyszczanie ścieków w Zakładach Chemicznych “Police” [Complete the cleaning of the waste water in the “Police” chemical plant]. Aura 7, 17-18 [in Polish].