Wyniki wyszukiwania

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Uwagi o dymorfizie plciowym kielbia kotkowasego Gobio gobio [L.]

100%

Nowak M., Klaczak A., Szczerbik A., Popek W.

Komunikaty Rybackie

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2010

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nr 6

2-5

A total of 49 common gudgeon, Gobio gobio (L.), were examined for morphometric and meristic differences according to sex. Nuptial tubercles were found in all males collected in spring, as well as in a number of females. On the other hand, nuptial tubercles covered the whole head with opercles in males, but only on the top of the head in females. There were no significant differences regarding meristic traits. Specimens of both sexes were characterized by the formula: 1.1.40-44, sq1 6, sq2 4, D III 7, A III 6, (3)4-5(6,7) scales between the anus and anal fin origin. Males were highly significantly (P < 0.001) different from females with longer pectoral fins, deeper caudal peduncles, and longer V-A distances. The results obtained in the current work are discussed in the context of data from the literature.

2

Rozmieszczenie i zmiennosc kielbia krotkowasego - Gobio gobio [L.] w dorzeczu Wieprza

100%

Danilkiewicz Z.

Annales Universitatis Mariae Curie-Sklodowska. Sectio C, Biologia

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1997

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tom 52

169-182

3

Chromosome banding patterns of the gudgeon, Gobio gobio [Actinopterygii, Cyprinidae]

84%

Kirtiklis K., Boron A., Porycka K.

Acta Ichthyologica et Piscatoria

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2005

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tom 35

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nr 2

Background. The gudgeon is one of the most divergent fish species in Europe. Morphological variability related to sex, size, ecological characters, and geographical distribution are well documented in the literature. Apart from the only few data on the karyotype, chromosome banding patterns of this species have not been studied. Cytogenetic features are very useful tools in taxonomic descriptions of cyprinid species. The aim of this study was to describe and characterise the banding patterns of the gudgeon karyotype. Materials and Methods. Cytogenetic examinations of 15 specimens of gudgeon from the upper part of the Odra River, Poland, were carried out. Different chromosome banding techniques: Giemsa staining, C-banding, silver nitrate, chromomycin A3 and DAPI staining were used. Results. The karyotype of gudgeon consisted of 2n = 50 chromosomes, and NF = 98 chromosome arms. Ag-NORs were located on one submeta-subtelocentric chromosome pair and the size polymorphism of NORs was detected. The chromosome sites with G-C rich DNA on one submeta-subtelocentric chromosome pair and heterochromatin block in the centromeric regions were found. Low accumulation of A-T pair rich regions were indicated by DAPI staining. Conclusion. The presently described new chromosomal features of Gobio gobio substantially enhance our knowledge on the taxonomy of this species at cytogenetic level. Jointly with data on morphological- and genetic variability they could be used to determine the phylogeny of the genus Gobio and related species.

4

Kontrolowany rozrod kielbia Gobio gobio [L.]

84%

Kowalski A.

Komunikaty Rybackie

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2002

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nr 2

25-27

5

Contributions to the morphological variation of the common gudgeon, Gobio gobio complex (Teleostei: Cyprinidae), in the upper Vistula drainage (southeast Poland)

67%

Nowak M., Mendel J., Szczerbik P., Klaczak A., Mikolajczyk T., Ozga K., Fałowska B., Popek W.

Archives of Polish Fisheries

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2011

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tom 19

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nr 1

Recent molecular research indicates that several distinct species have been confused under the name Gobio gobio (L.); thus, comparative investigations of numerous local populations are urgently needed. The present study presents and discusses detailed morphometric characteristics of 82 individuals from the G. gobio complex of nine tributaries of the upper Vistula River (southeast Poland) within the context of the known variability of this species. The specimens analyzed generally resemble G. gobio s. stricto in a number of morphometric and meristic characters. The results are rather consistent with previous literature data on Polish populations of the “common gudgeon”; however, as long as molecular analyses are not available, precise identification is impossible.

6

Utrastructural observations on Goussia metchnikovi (Laveran, 1897) in the spleen of gudgeon, Gobio gobio L.

67%

Ball S. J., Daszak P., Davies A. J.

Acta Parasitologica

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2012

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tom 57

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nr 1

The ultrastructure of gamonts and sporulated oocysts of Goussia metchnikovi in the spleen of gudgeon, Gobio gobio from the river Lee, England is described. In developing microgamonts, small amylopectin granules were grouped centrally and nuclei were often arranged peripherally, close to the surface membrane. Nuclear chromatin condensed into peripheral dense portions that became the nuclei of flagellated microgametes, released to the parasitophorous vacuole. The cytoplasm of macrogametes had larger, scattered amylopectin granules, lipid globules and small electron-dense bodies, but no obvious wall forming bodies; peripheral vesicular structures with the appearance of mitochondria were also present and the parasitophorous vacuole contained flocculent material, but was otherwise free of structures. Sporulated oocysts contained four sporocysts and oocyst walls appeared to consist of a single membrane. Sporocyst walls showed a dehiscence suture, characteristic of the genus Goussia, which had filamentous extensions in places. The sporocyst wall comprised a dense inner layer and a thin outer layer with a fuzzy coat, separated by an electron lucent layer. Groups of oocysts were encapsulated by fibrous layers and inflammatory cells, and many sporocysts and their contained sporozoites showed evidence of elimination by the host.

7

Morphology of the common gudgeon, Gobio gobio (L.) sensu lato, from the Vistula River drainage in the context of recent literature data (Teleostei: Cyprinidae)

67%

Nowak M., Popek W., Drag-Kozak E., Epler P.

Archives of Polish Fisheries

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2008

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tom 16

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nr 1

8

Morphological characteristics and variation of gudgeon, Gobio gobio (Actinopterygii: Cyprinidae), from the Odra River drainage, Poland

67%

Szlachciak J., Zabkiewicz D.

Acta Ichthyologica et Piscatoria

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2008

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tom 38

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nr 1

Background. The gudgeon is a small fish of limited economic importance. Species of the genus Gobio bear a strong superficial resemblance to one each other, what has led to the misidentification of Central European gudgeons for many years. Consequently, accurate information about Polish populations of gudgeon is still scarce and more studies are needed to fill this gap. The purpose of the presently reported study is to describe the gudgeon on the basis of its morphological characters and to compare the results published by other authors. Materials and Methods. A total of 46 specimens of the gudgeon, Gobio gobio, were caught in the Zimnik Stream, the Skóra system, the Odra River drainage, western Poland, in October 2002. For each fish, 24 biometric features of the body and 20 features of the skull were measured. Selected meristic features (external and internal) were determined. Cephalic sensory canals were studied and their pores were counted. Results. The coefficient of variation for the body proportions of the sample of gudgeon from the Odra River drainage ranges from 1.7% to 7.2% and its principal features are as follows: D III 7–9; A III 6–7; P I 11–15; V I 6–8; l.l. 37–41. Two rows of pharyngeal teeth are present, most frequently, in 2.5–5.2 pattern. The total number of vertebrae ranges from 46 to 48 (mean 47.38). Conclusion. This study shows that the sample analyzed has the shortest head length in relation to other measurements and the body length, as compared to other populations from Polish rivers. The majority of values of meristic features do not differ significantly from those found in literature. The presently provided internal meristic and osteological features of gudgeon are among very few such data available.

9

Fish diets and densities of benthos upstream and downstream of a man-made barrier on the Glems River, Baden-Wurttemberg, Germany

67%

Jansen W., Kappus B., Bohmer J.

Polskie Archiwum Hydrobiologii

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1996

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tom 43

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nr 2

10

Krajowa drobnica w akwarium - co wolno akwaryście?

43%

Zientek H.

Nasze Akwarium. Miesięcznik Miłośników i Hodowców Ryb

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2005

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nr 12[72]

Ograniczanie wyników

Uwagi o dymorfizie plciowym kielbia kotkowasego Gobio gobio [L.]

Rozmieszczenie i zmiennosc kielbia krotkowasego - Gobio gobio [L.] w dorzeczu Wieprza

Chromosome banding patterns of the gudgeon, Gobio gobio [Actinopterygii, Cyprinidae]

Kontrolowany rozrod kielbia Gobio gobio [L.]

Contributions to the morphological variation of the common gudgeon, Gobio gobio complex (Teleostei: Cyprinidae), in the upper Vistula drainage (southeast Poland)

Utrastructural observations on Goussia metchnikovi (Laveran, 1897) in the spleen of gudgeon, Gobio gobio L.

Morphology of the common gudgeon, Gobio gobio (L.) sensu lato, from the Vistula River drainage in the context of recent literature data (Teleostei: Cyprinidae)

Morphological characteristics and variation of gudgeon, Gobio gobio (Actinopterygii: Cyprinidae), from the Odra River drainage, Poland

Fish diets and densities of benthos upstream and downstream of a man-made barrier on the Glems River, Baden-Wurttemberg, Germany

Krajowa drobnica w akwarium - co wolno akwaryście?