Wyniki wyszukiwania

1

Morphological characterisation of salmon [Salmo salar L., 1758] aged 0plus, 1plus and 2plus, stocked in Pomeranian rivers

100%

Domagala J., Kirczuk L.

Electronic Journal of Polish Agricultural Universities. Series Fisheries

|

2004

|

tom 07

|

nr 1

Characterisation of salmon (Salmo salar) aged 0+, 1+, 2+, stocked in Pomeranian rivers, involved 25 plastic and 13 meristic characters, the opercular bone arrangement, and coloration. Coloration of body and fins, appearing at the age of 0+ at the fork length of 6-10 cm belonged to the earliest species-specific traits. Typical values of certain species-specific characters, such as tail base width, caudal fin incision (as per cent of l. caudalis), and the length of the upper jaw (as per cent of l. capitis) were recorded as early as in the fish aged 0+. Other characters, such as the opercular bone arrangement, were observed in those individuals aged 1+ and only in some fish aged 0+. The typical salmon anal fin shape occurred in some of the salmon aged 1+ and 2+ only. The study showed a high variability and significant differences in meristic and plastic characters between individuals grown in various rivers.

2

Colouration of reciprocal hybrids of salmon (Salmo salar L., 1758) and sea trout (Salmo trutta m. trutta L., 1758) aged 0plus and 1plus grown in the natural conditions

84%

Kirczuk L., Domagala J.

Electronic Journal of Polish Agricultural Universities. Series Fisheries

|

2012

|

tom 15

|

nr 1

3

Modulation of hepatic chromatin structure in response to 17-beta estradiol induced activation of the vitellogenin gene regions in Atlantic salmon, Salmo salar

84%

Von d. D. A., Waters S.

Acta Biochimica Polonica

|

1993

|

tom 40

|

nr 1

4

Stage of gonadal development of cultured salmon [Salmo salar L.] during their second year of life

84%

Domagala J., Dziewulska K.

Acta Scientiarum Polonorum. Piscaria

|

2003

|

tom 02

|

nr 1

5

The restoration on Atlantic salmon [Salmo salar L.] in Poland

84%

Bartel R.

Archives of Polish Fisheries

|

2001

|

tom 09

|

nr 2

The last remaining salmon population in Poland went extinct in the mid 1980s. The salmon restoration program in Poland in based on Daugava salmon, and the first eyed Daugava salmon eggs were imported to Poland in 1985, and they continued to be imported in subsequent years. Spawners were reared in net cages in the Gulf of Gdańsk. Salmon smolts have been released into Pomeranian rivers and the Vistula River since 1994. Between 1994 and 1999, 1, 644, 936 salmon smolts were released, of which 63, 602 were tagged. Overall, there was a low recovery rate of tagged specimens, and from many experiments there were no recoveries at all. The highest recovery rate was 4.5%. Tagged salmon migrated throughout the Baltic Sea, but the highest concentration of catches were in the Gulf of Gdańsk, near Bornholm and in the Gulf of Finland. In the first winter, the tagged salmon attained an average length of 62.9 cm and an average weight of 2.9 kg, in the second winter theses figures were 76.1 cm and 5.3 kg, and in the third they were 90.7 cm and 7.6 kg.

84%

Dziewulska K., Domagala J.

Acta Ichthyologica et Piscatoria

|

2003

|

tom 33

|

nr 2

Background. Early maturation of salmon males (Salmo salar L.) affects the reduction of fish physical condition and culture Materials and Methods. Atotal of 145 salmon males belonging to a group of low growth rate specimens that had not smoltified during the first spawning season were sampled from the "Aquamar" Fish Farm (Miastko, Poland). The study was based on light microscopy examination of histological sections and a standard procedure of milt quality evaluation. The gonadal development stage was determined with Billard and Escaffre ′s 9-grade scale modified by Dziewulska. Results. The mean fork length of males was 10.45 cm. Three groups of males were distinguished: non-maturing (stage I); beginning spermatogenesis (inactive substage II); and precocious (stages VI to IX plus maturing males classified as undergoing "attempted spermatogenesis"). The groups contained 72.4, 4.8, and 22.8% of the males examined, respectively. The gonadosomatic index recorded in the three respective groups ranged from 0.010 to 0.164 (mean 0.040); 0.050 -0.155 (0.089); and 0.058 -6.219 (1.358). The gonadosomatic index is not an accurate indicator of gonadal activity. The precocious males semen contained from 6.1 to 23.0 million spermatozoa per mm 3 (13.41 million on the average). Spermatozoa performing progressive movements constituted 80-90%. Results. On the other hand, precocious male can fertilize mature eggs. The aim of this study was to estimate the magnitude of precocious maturation and to evaluate semen characteristics in a group of cultured 1-year-old salmon. Conclusion. Among non-maturing males and males beginning spermatogenesis, precocious individuals were detected, the latter produced semen of good quality.

13

Sea trout [Salmo trutta L.] and salmon [Salmo salar L.] catches in the lower Odra River system as well as stocking in the years 1973-1987

84%

Chelkowski Z.

Acta Ichthyologica et Piscatoria

|

1992

|

tom 22

|

nr 2

14

National fish production

67%

Kolodziejczyk M.

Polish Food

|

2009

|

nr 2

15

Oocyte development of bilateral salmon (Salmo salar L., 1758) and sea trout (Salmo trutta m. trutta L., 1758) hybrids and pure species in the freshwater period of their life

67%

Kirczuk L., Domagala J.

Electronic Journal of Polish Agricultural Universities. Series Fisheries

|

2011

|

tom 14

|

nr 2

16

Humoral antibody response of Atlantic salmon, Salmo salar L., vaccinated against Moritella viscosa

67%

Guz L.

Polish Journal of Veterinary Sciences

|

2003

|

tom 06

|

nr 3 Suppl.

17

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Redox status of the West Pomerania rivers and streams selected for settlement with salmon (Salmo salar L.) and sea trout fry (Salmo trutta morpha trutta L.) - results of research in winter

67%

Poleszczuk G., Domagala J.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

|

2003

|

tom 06

18

Fatty acid composition in cerebral cortex, hippocampus and cerebellum in adult rats receiving salmon oil for 6 months

67%

Firlag M., Komaszewski M., Ostaszewski P., Balasinska B.

Journal of Pre-Clinical and Clinical Research

|

2014

|

tom 08

|

nr 1

19

Impact of egg size and origin on the course and period of sea trout [Salmo trutta L.] hatching

67%

Debowski P., Dobosz S., Grudniewska J., Kuzminski H.

Archives of Polish Fisheries

|

2006

|

tom 14

|

nr 1

A comparison was made of the incubation period and the dynamics of the hatching of the offspring of three groups of fish (brown trout, sea trout that had smoltified, sea trout that had not smoltified) that were reared under the same conditions and spawned on the same day. The length of the incubation period differed ranging from 304 to 376°D among the offspring of individual fish as well as among the fish groups. The eggs of brown trout developed the most slowly (average 347°D), while those of the smoltified sea trout developed the quickest (average 336°D). No dependence was determined between incubation period and egg size. The longer the incubation period was, the shorter the entire hatching period was, but its peak was more extended lasting from 5 to 34°D. The duration of the hatching peak decreased as the average egg size increased.

20

Non-ortho polychlorinated biphenyls [PCBs] in Baltic fish in the 1999-2003 period

67%

Barska I., Guz-Ruczynska W., Skrzynski I., Szlinder-Richert J., Usydus Z., Bykowski P., Hove H., Heggstad K., Bjordal A.

Bulletin of the Sea Fisheries Institute

|

2005

|

nr 1

Ograniczanie wyników

Morphological characterisation of salmon [Salmo salar L., 1758] aged 0plus, 1plus and 2plus, stocked in Pomeranian rivers

Colouration of reciprocal hybrids of salmon (Salmo salar L., 1758) and sea trout (Salmo trutta m. trutta L., 1758) aged 0plus and 1plus grown in the natural conditions

Modulation of hepatic chromatin structure in response to 17-beta estradiol induced activation of the vitellogenin gene regions in Atlantic salmon, Salmo salar

Stage of gonadal development of cultured salmon [Salmo salar L.] during their second year of life

The restoration on Atlantic salmon [Salmo salar L.] in Poland

Preliminary results of Atlantic salmon [Salmo salar L.] restoration in River Wieprza

Monitoring of sports fishing catches of Atlantic salmon [Salmo salar L.] of the Ponoi River, Russia, to document population characteristics

The ecology of dwarf fluvial Atlantic salmon, Salmo salar L., cohabiting with brook trout, Salvelinus fontinalis [Mitchill], i Southeastern Newfoundland, Canada

A free-living amoeba with unusual pattern of mitochondrial structure isolated from Atlantic salmon, Salmo salar L.

Osteological characteristics of selected cranium bones of salmon [Salmo salar L., 1758] and sea trout [Salmo trutta m.trutta L., 1758]

Results of an attempt to introduce of the Danube salmon, Hucho hucho [L.] into the River Gwda and its tributaries [Northwestern Poland]

Precocious males of cultured Atlantic salmon, Salmo salar L. in the second spawning season

Sea trout [Salmo trutta L.] and salmon [Salmo salar L.] catches in the lower Odra River system as well as stocking in the years 1973-1987

National fish production

Oocyte development of bilateral salmon (Salmo salar L., 1758) and sea trout (Salmo trutta m. trutta L., 1758) hybrids and pure species in the freshwater period of their life

Humoral antibody response of Atlantic salmon, Salmo salar L., vaccinated against Moritella viscosa

Redox status of the West Pomerania rivers and streams selected for settlement with salmon (Salmo salar L.) and sea trout fry (Salmo trutta morpha trutta L.) - results of research in winter

Fatty acid composition in cerebral cortex, hippocampus and cerebellum in adult rats receiving salmon oil for 6 months

Impact of egg size and origin on the course and period of sea trout [Salmo trutta L.] hatching

Non-ortho polychlorinated biphenyls [PCBs] in Baltic fish in the 1999-2003 period