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1

Wpływ działalności ośrodka zarybieniowego na jakość wody dolnego odcinka rzeki Wiśniówka w latach 2005-2009

100%
Bonislawska M., Szaniawska D., Szmukala M., Pender R.
Woda - Środowisko - Obszary Wiejskie
|
2011
|
tom 11
|
nr 2[34]
2

Polowy tarlakow certy z rzeki Regi w roku 2008

88%
Bartel R., Pender R., Tanski A., Potkanski L., Pilch E.
Komunikaty Rybackie
|
2008
|
nr 6
11-13
3
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Vimba Vimba vimba (L.) from the Rega River - support of natural spawning in 2004-2008 and the natural population

88%
Tanski A., Czerniejewski P., Keszka S., Pender R., Pilch E.
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
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2011
|
tom 15
The paper reports results of a study on the population of vimba in the Rega River aimed at localisation of the spawning sites and support of the natural reproduction by stocking. The spawning sites were localised with the help of electric catching and the coordinates were determined by GPS units. The fish caught to be used for artificial spawning (145 individuals) were measured (l.t. and l.c.) using an electronic calliper coupled with a PC unit. The sex of the fish was identified and on the basis of scale analysis the age and rate of length and mass increase were estimated. The backcalculation readings were made using the Rosa Lee method. The model of growth was established on the basis of the von Bertalanffy formula. Comparisons of groups of fish were drawn with the help of the nonparametric Mann Whitney U test. Correlations between variables were evaluated by analysis of regression, while the significance of the correlation coefficient was checked by t test. The rate of vimba mass increase was calculated using the modified von Bertalanffy formula was found to be described by Wt = 1215.103[1-e-0.133609(t+0.57322)]2.7559. The spawning sites of vimba localised in the Rega River section between Gryfice and Trzebiatow were concluded to be good sources of spawners for artificial spawning and the number of spawners caught in this section of the river ensures continuation of vimba restitution in the Rega River. The hitherto stocking measures aimed at restoration of vimba population have brought satisfactory results as evidenced by the age structure of the fish caught in the electric fishing in 2008.
4

Zmiany patologiczne w skorze u tarlakow lososia [Salmo salar] i troci [Salmo trutta m.trutta] z niektorych pomorskich rzek w 2009 roku

51%
Grudniewska J., Bartel R., Bernas R., Cizmowski L., Jesiolowski M., Kacperska B., Kazun B., Marczynski A., Sarabura T., Pender R., Polomski S., Skora M., Sobocki M., Terech-Majewska E., Wolynski P., Siwicki A. K.
Komunikaty Rybackie
|
2011
|
nr 2
7-12
Observations of pathological changes on the skin (furunculosis) of salmon and sea trout spawners caught in Polish rivers and cultivated In ponds were continued in 2009. In comparison to the prevalence of this disease in 2007-2008, pathological changes were noted among fish from fewer rivers, while the percentage of fish infected with disease was significantly lower. Ichthyopathological tests were performed to identify the bacteria linked to the occurrence of this disease in the integumentary system and the internal organs.
5

Wrzodzienica u lososi [Salmo salar] i troci [Salmo trutta trutta] w Polsce w latach 2007-2008

51%
Bartel R., Bernas R., Grudniewska J., Jesiolowski M., Kacperska B., Marczynski A., Pazda R., Pender R., Polomski S., Skora M., Sobocki M., Terech-Majewska E., Wolynski P.
Komunikaty Rybackie
|
2009
|
nr 3
7-12
Furunculosis appears from time to time in salmonids in different rivers. It was noted in sea tout from the Dunajec River in 1923 and 1924. In 2007 and 2008, it was noted in sea trout and salmon from Pomeranian rivers, where from 80 to 2,400 sea trout spawners were caught. The degree of infection ranged widely from 0.00% in the Łeba to 74.7% in the Słupia and Rega rivers. In 2007, of the 1,381 sea trout weighing 1949.5 kg caught in the Słupia River, 1031 fish weighing 1,664 kg were cleared for utilization. The most diseased fish were observed in the Słupia and Rega rivers. The number of salmon caught in 2007 and 2008 was lower than that of sea trout and ranged from 2 to 65 individuals from the various rivers. The percentage of infected fish ranged from 8.3% (Słupia) to 58.3% (Rega). Funuculosis was noted more frequently in males than females, as well as in more salmon than in sea trout. Bacteriological assays indicated the presence of Aeromonas hydrophila Complex, Aeromonas sorbia, Pseudomonas flurescens, Streptococus mutans, Streptococus sp. Internal organ bleeding was also noted. In the Vistula, Drwęca, Łeba, and Łupawa rivers and in hatcheries rearing spawners of both salmon and sea trout, no symptoms of furunculosis were noted.
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