Wyniki wyszukiwania

1

Growth rate of bleak, Alburnus alburnus [L.,1758] in Miedzyodrze waters

100%

Kompowski A.

Acta Ichthyologica et Piscatoria

|

2000

|

tom 30

|

nr 1

The rate growth of bleak in Międzyodrze-the wetland located in the lower course of the Odra River above Szczecin-was estimated with use of back-calculations. The fish reaches 59.3 mm in length in the first year of life, 89.1 in the second year, 115.8 mm in the third, and 131.5 mm in the fourth year of life (SL). Females are on the whole larger than males of the same age.

2

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Accumulation of zinc in water, sediments and bleak fish (Alburnus alburnus L.) in the ecosystem of the Dunajec River

84%

Niemiec M.

Journal of Elementology

|

2016

|

tom 21

|

nr 1

Zinc present in water penetrates into the organism of a fish either directly, through the skin and gills, or indirectly, with food taken into the alimentary canal. The toxocity of this metal is associated with the transporting function of blood, which distributes it over the whole organism. The aim of this paper was to assess the zinc content in water and bottom sediments collected from the Dunajec River, and also in selected organs of bleak (Alburnus alburnus L.). The bioaccumulation factors for this element in the muscles, liver, skin and bones of the fish were calculated from the results of the research, which was carried out in 2011. Samples of water and bottom sediments were collected twice, in July and October, at 5 research points located in Szczepanowice, Janowice, Wróblowice, Lusławice, and Zakliczyn. Twenty-nine specimens of bleak were provided by members of the Polish Angling Association (PZW — Polski Związek Wędkarski), from catches performed in the second half of July. The zinc concentration in the samples was determined by inductively coupled plasma atomic emission spectrometry at a wavelength of 206.200 nm, conducted on an Optima 7600 DV spectrometer made by Perkin Elmer. The limit of detection for zinc was 5.9 μg · dm-3. High concentrations of zinc in the water were found, indicative of anthropogenic enrichment of the river with this element. The zinc content in the analysed sediments was below the geochemical background value for bottom sediments in Poland. Zinc concentrations in the fish varied within a range from 152.6 to 352 mg ∙ kg-1 in the skin, from 158.8 to 271.3 mg ∙ kg-1 in the bones, from 27.32 to 97.35 mg ∙ kg-1 in the muscles, and from 82.39 to 230.7 mg ∙ kg-1 in the liver. The mean content of zinc in individual organs decreased in the following order: skin > skeleton > liver > muscles. Zinc concentrations in individual organs of the fish were comparable with the ones determined eslewhere in environments polluted with this element.

3

Length and age structure, sexual maturation and fecundity of bleak Alburnus alburnus [L., 1758] in Miedzyodrze

84%

Kompowski A., Neja Z.

Folia Universitatis Agriculturae Stetinensis. Piscaria

|

2001

|

tom 28

4

Myxobolus species infecting the cartilaginous rays of the gill filaments in cyprinid fishes

67%

Molnar K., Cech G., Szekely C.

Acta Parasitologica

|

2008

|

tom 53

|

nr 4

During a survey on myxosporean parasites of cyprinid fishes in Hungary, Myxobolus infections were found in the cartilaginous rays of the gill filaments in roach (Rutilus rutilus) and bleak (Alburnus alburnus). Myxobolus spp. causing the infections were studied by morphological, histological and molecular methods. Small plasmodia surrounded by chondrocytes contained relatively few spores which differed from each other and from the known Myxobolus spp. both in their morphology and 18S rDNA sequences. Both species, described as M. feisti sp. nov. and M. susanlimae sp. nov., are characterised by a specific cartilaginous histotropism.

5

Diet and feeding of dominant fish populations in the impounded Warta River, Poland

67%

Marszal L., Grzybkowska M., Penczak T., Galicka W.

Polskie Archiwum Hydrobiologii

|

1996

|

tom 43

|

nr 2

Ograniczanie wyników

1 Acta Ichthyologica et Piscatoria

1 Acta Parasitologica

1 Folia Universitatis Agriculturae Stetinensis. Piscaria

1 Journal of Elementology

1 Polskie Archiwum Hydrobiologii

2 Kompowski A.

1 Cech G.

1 Galicka W.

1 Grzybkowska M.

1 Marszal L.

1 Molnar K.

1 Neja Z.

1 Niemiec M.

1 Penczak T.

1 Szekely C.

1 2016

1 2008

1 2001

1 2000

1 1996

Growth rate of bleak, Alburnus alburnus [L.,1758] in Miedzyodrze waters

Accumulation of zinc in water, sediments and bleak fish (Alburnus alburnus L.) in the ecosystem of the Dunajec River

Length and age structure, sexual maturation and fecundity of bleak Alburnus alburnus [L., 1758] in Miedzyodrze

Myxobolus species infecting the cartilaginous rays of the gill filaments in cyprinid fishes

Diet and feeding of dominant fish populations in the impounded Warta River, Poland