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1

Effects of cage stocking density on selected efficiency indices of European wels [Silurus glanis L.] culture in cooling water

100%
Sadowski J., Trzebiatowski R., Filipiak J.
Folia Universitatis Agriculturae Stetinensis. Piscaria
|
2000
|
tom 26
2

Evaluation of the stocking of the Malta reservoir in Poznan with the summer fry of wels [Silurus glanis L.] reared in the state treasury fish farm Goslawice

84%
Czarnecki M., Andrzejewski W., Mastynski J.
Animal Science. Scientific Papers of Agricultural University of Poznan
|
2000
|
tom 02
3

Growth of wels [Silurus glanis L.] in the Vistula River and the Zegrzynski Reservoir

84%
Horoszewicz L., Backiel T.
Archives of Polish Fisheries
|
2003
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tom 11
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nr 1
The age of wels (Silurus glanis L.) and the back calculated length at subsequent ages were estimated using sections of the first pectoral fins. The growth of this species in the Vistula River follows the von Bertallanfy curve. Some fish grew faster in the Zegrzyński Reservoir after its inundation in 1962 than they had before. The two populations exhibited an intermediate growth rate which was between that of wels from the Vag (Slovakia) and Don rivers (Russia).
4

Sanitary and bacteriological evaluation of water quality during cage culture of wels [Silurus glanis L.] in cooling water

84%
Zmyslowska I., Harnisz M., Lewandowska D.
Archives of Polish Fisheries
|
2001
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tom 09
|
nr 2
The organic pollution and the sanitary state of cooling water used in intensive fish rearing were evaluated. The study was carried out at the cage station of the Olsztyn Fish Farm located in the northeastern Mazurian Lake District of Poland. The water was sampled monthly from April 1 to September 30, 1999. Quantitative analyses included a total count of the bacteria cultured on a common agar medium at 20 and 37°C (TVC 20°C and TVC 37°C), the total count of coliforms (TC) and fecal coliforms (FC), a count of fecal streptococci (FC) and spore-forming anaerobes (Clostridium perfringens). The results obtained indicate that cage fish culture did not considerably affect the bacteriological properties of the water.
5

The feeding selectivity of wels [Silurus glanis L.] in Lake Goreckie

84%
Czarnecki M., Andrzejewski W., Mastynski J.
Archives of Polish Fisheries
|
2003
|
tom 11
|
nr 1
In 1997, 375 cultivated wels specimens were released into Lake Góreckie, which is located in the Wielkopolski National Park. The average mass per specimen was 1,350 g. Control catches were made in 1998 and 1999, and the diet consumed by the wels was investigated. The striped crayfish Orconectes limosus Raf. was detected in 51% of the fish caught. The contribution of striped crayfish to the wels diet fell to 4% after two years. This was probably correlated with changes in the feeding grounds of the older wels.
6

The effect of administration of 11 beta-hydroxyandrostenedione in feed on morphology of some internal organs of wels, Silurus glanis [L.]

67%
Demska-Zakes K., Hliwa P., Czepolanis A., Zakes Z.
Archives of Polish Fisheries
|
2000
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tom 08
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nr 1
7

Ionic composition and testosterone concentrations of blood plasma and seminal fluid of carp Cyprinus carpio and European wels Silurus glanis

67%
Koldras M., Bieniarz K., Hansford S., Kime D. E.
Polskie Archiwum Hydrobiologii
|
1997
|
tom 44
|
nr 1-2
8

Działo się w Wels...

59%
Jaworski M.
Koń Polski
|
2010
|
tom 45
|
nr 06
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