Wyniki wyszukiwania

1

Peculiarities of embryogenesis in Scardinius erythrophthalmus L.

100%

Korzelecka A., Winnicki A.

Electronic Journal of Polish Agricultural Universities. Series Fisheries

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1998

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tom 01

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nr 1

Morphomechanical changes appearing during embryonic development of Scardinius erythrophthalmus L. were followed. Upon complete egg hydration, the yolk together with the embryo was found to occupy about 30% of egg volume, the perivitelline space making up the remaining 70%. The embryonic disc, and the embryo later on, were always located laterally in the egg. As in many other cyprinids, the developing eggs of S. erythrophthalmus contain no strucutral lipids in the form of droplets. At the mid-point of embryogenesis, the yolk begins to divide; as a result, a vitellar diverticulum elongating as the development continues appears under the caudal part of the fast growing embryo. After hatching, the diverticulum is transformed into the posterior part of the body cavity. Until hatching, the S. erythrophtalmus embryos lack melanophores both in the skin and in the eyes.

2

Growth rate of rudd [Scardinius erythrophthalmus [L.]] in the river San backwater near Hurko [short communication]

86%

Kulpa W., Zalachowski W.

Acta Scientiarum Polonorum. Piscaria

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2002

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tom 01

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nr 1

3

Cyclic development of sex cells in artificially bred rudd Scardinius erythrophthalmus [L.]

86%

Kopiejewska W., Terlecki J., Chybowski L.

Acta Scientiarum Polonorum. Piscaria

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2004

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tom 03

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nr 1-2

4

Induced spawning in rudd [Scardinius erythrophthalmus L.]

86%

Kucharczyk D., Kujawa R., Mamcarz A., Wyszomirska E.

Polskie Archiwum Hydrobiologii

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1997

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tom 44

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nr 1-2

5

Cadmium toxicity to rudd [Scardinius erythrophthalmus [L.]] larvae after short-term exposure

72%

Sikorska J., Wolnicki J.

Archives of Polish Fisheries

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2006

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tom 14

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nr 1

Rudd, Scardinius erythrophthalmus (L.), larvae aged four days post-hatch and at the very beginning of swimbladder inflation were exposed to cadmium (0.0, 0.1, 0.2, and 0.3 mg dm⁻³) at 22.0°C (± 0.5°C) for 24 h. Following exposure, the larvae were reared in pure water in a recirculating system at 25.0°C (± 0.5°C) for the subsequent nine days. Cadmium resulted in reduced larval growth and survival, retarded swimbladder inflation, and the delayed onset of exogenous feeding on live Artemia nauplii. All these effects were dependent on concentration. The differences between the effects of cadmium at the lowest and the highest concentrations were significant (P ≤ 0.05). The results demonstrated the highly toxic effect of short-term exposure to 0.1 - 0.3 mg Cd dm⁻³ in rudd larvae.

6

Wzdręga (krasnopiórka) Scardinius erythrophthalamus (Linnaeus, 1758)

58%

Przegląd Rybacki

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1998

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tom 23

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nr 5[42]

7

Life history strategies of fish: patterns in growth and lifespan of rudd Scardinius erythrophthalmus (L.) in Europe

58%

Tarkan A. S., Lappalainen J., Nurminen L., Horppila J.

Polish Journal of Ecology

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2010

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tom 58

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nr 1

Variation in life history strategies of rudd Scardinius erythrophthalmus (L.) in Europe was evaluated based on published sources. The growth and lifespan were analysed as the main variables in life strategies of any fish. The results revealed that total length (TL) at age 1 year was correlated with latitude and faster growth during the first growing season leads to a shorter lifespan in Europe. Variation in length at age 1 year was more pronounced in southern (40–46°N: mean TL = 84.6 mm, SD = 27.2, n = 9) than in northern populations (49–61°N: mean TL = 46.4 mm, SD = 4.2, n = 10). Thus, rudd can show different life history strategies in southern populations whereas in northern populations these options are few.

8

The annual reproductive cycle of rudd, Scardinius erythrophthalmus (Cyprinidae) from the Lower Oder River and Lake Dabie, (NW Poland)

58%

Domagala J., Kirczuk L., Dziewulska K., Pilecka-Rapacz M.

Folia Biologica

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2020

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tom 68

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nr 1

9

The fish fauna in the Montedoglio reservoir (Tuscany, Italy) five years after its creation

58%

Lorenzoni M., Carosi A., Giovinazzo G., Petesse M. L., Mearelli M.

International Journal of Ecohydrology and Hydrobiology

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2005

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tom 05

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nr 2

To assess the current ecosystem status of Montedoglio Reservoir and surrounding waters, the fish fauna has been analysed in 1993, about five years after the first experimental impoundment. Total number of 898 fishes of fifteen species have been collected of the total biomass of 117 kg. The most abundant species were pumpkinseed (Lepomis gibbosus), goldfish (Carassius auratus L.), bleak (Alburnus alburnus alborella De Fil.), largemouth bass (Micropterus salmoides Lac.), rudd (Scardinius erythrophthalmus L.), and chub (Leuciscus cephalus L.), while the three: Carp (Cyprinus carpio L.), goldfish, and largemouth bass accounted for the most biomass. Of the most common species, carp, chub, largemouth bass and rudd provided insight into population structure and growth. In 1992, a year of heavy spring rains and a rapid water exchange, a year-class abundance across all species was particularly poor. The results of water levels and outflows between 1992-1994 showed a high degree of instability of the system. It appeared to favour fish species depositing their eggs inshore (i.e. chub) and predators (i.e. largemouth bass), while species with life stages feeding on plankton or benthos were not favoured.

10

Cechy przeliczalne i mierzalne wzdregi [Scardinius erythrophthalmus L.] z jeziora Goplo

58%

Dabrowski J.

Zeszyty Naukowe Akademii Techniczno-Rolniczej w Bydgoszczy. Zootechnika

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2005

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tom 35

131-137

11

The growth rate of the six selected fish species inhabiting in the Polish part of the Vistula Lagoon

58%

Trella K.

Bulletin of the Sea Fisheries Institute

|

2003

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nr 3

12

Attainment of sexual maturity by hybrids of rudd, Scardinius erythrophthalmus [L.] and carp bream, Abramis brama [L.] under experimental conditions

58%

Kopiejewska W., Terlecki J., Chybowski L.

Acta Ichthyologica et Piscatoria

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2004

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tom 34

|

nr 1

Background. In case of natural hybridisation of fish it is important to determine whether the hybrids attain sexual maturity and whether they can produce generation F2. The hybrids of rudd and carp bream, relatively frequent under natural conditions, have not been studied in the aspect of sexual maturity attainment. Materials and Methods. Histological examinations of gonads of 4-5 year old rudd and carp bream hybrids were carried out in experimental environments during the pre-spawning and spawning seasons of the parental species. Results. In development of oocytes the female hybrids of rudd and carp bream reached the stage of migrating nucleus and deterioration of the morphological structure of the nucleus. In case of male hybrids the presence of spermatids was confirmed. The stage of spermatozoa was not observed in case of hybrids of rudd and bream. In case of the control species (rudd) that stage was also not observed. It is possible that the lack of that stage was affected by the parameters of the culture environment. Nevertheless, the sexual products of male hybrids of rudd and bream as well as rudd were deposited. Conclusion. The studies show that the hybrids of rudd and carp bream may reach sexual maturity in the natural environments.

13

Rumienica Leuciscus erythrophthalamus

58%

Rozwadowski J.

Przegląd Rybacki

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1998

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tom 23

|

nr 5[42]

14

Carotenoids in fish. 51. Cyprinidae - Phytophagus: Rutilus rutilus, Rutilus rutilus Heckeli, Scardinus erythrophtalmus, Chondrostoma nasus and Rhodeus sericeus amarus

51%

Czeczuga B.

Acta Ichthyologica et Piscatoria

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1994

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tom 24

|

nr 2

43-51

The column and thin-layer chromatography was used to the presence and total amount of carotenoids in some body parts of 5 fish species.

15

Zasoby ryb i rybolowstwo Zalewu Wislanego

37%

Borowski W., Dabrowski H.

Magazyn Przemysłu Rybnego

|

1997

|

nr 4

5-8

Ograniczanie wyników

Peculiarities of embryogenesis in Scardinius erythrophthalmus L.

Growth rate of rudd [Scardinius erythrophthalmus [L.]] in the river San backwater near Hurko [short communication]

Cyclic development of sex cells in artificially bred rudd Scardinius erythrophthalmus [L.]

Induced spawning in rudd [Scardinius erythrophthalmus L.]

Cadmium toxicity to rudd [Scardinius erythrophthalmus [L.]] larvae after short-term exposure

Wzdręga (krasnopiórka) Scardinius erythrophthalamus (Linnaeus, 1758)

Life history strategies of fish: patterns in growth and lifespan of rudd Scardinius erythrophthalmus (L.) in Europe

The annual reproductive cycle of rudd, Scardinius erythrophthalmus (Cyprinidae) from the Lower Oder River and Lake Dabie, (NW Poland)

The fish fauna in the Montedoglio reservoir (Tuscany, Italy) five years after its creation

Cechy przeliczalne i mierzalne wzdregi [Scardinius erythrophthalmus L.] z jeziora Goplo

The growth rate of the six selected fish species inhabiting in the Polish part of the Vistula Lagoon

Attainment of sexual maturity by hybrids of rudd, Scardinius erythrophthalmus [L.] and carp bream, Abramis brama [L.] under experimental conditions

Rumienica Leuciscus erythrophthalamus

Carotenoids in fish. 51. Cyprinidae - Phytophagus: Rutilus rutilus, Rutilus rutilus Heckeli, Scardinus erythrophtalmus, Chondrostoma nasus and Rhodeus sericeus amarus

Zasoby ryb i rybolowstwo Zalewu Wislanego