ALIEN SPECIES OF FISH HELMINTHS OF BELARUS

The article provides data on the species composition of alien helminth species, which infest introduced fish species in pond fish farms, and also the literature data on natural reservoirs of Belarus. Seven alien helminth species have been revealed in introduced fish in reservoirs of Belarus ( Khawia sinensis Hsü, 1935, Schyzocotyle acheilognathi (Yamaguti, 1934) , Caryophyllaeus fimbriceps Annenkova-Chlopina, 1919, Philometroides cyprini (Ishii, 1931), Dactylogyrus dulkeiti Bychowsky, 1936, Bothriocephalus claviceps (Goeze, 1782) , Anguillicola crassus Kuwahara 1974). All species of helminths excluding the nematode A.crassus and the cestode B.claviceps - parasites of the eels Anguilla anguilla , were introduced to Belarus with the seeding of Cyprinus carpio haematopterus (Linnaeus, 1758) from the Far East. The invasive species of helminths ( K. sinensis, S. acheilognathi, P. cyprini, A. crassus ), which affect fishery by causing the death of farmed fish, are singled out.

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Differences between the European carp (Cyprinus carpio carpio) and the coloured carp (Cyprinus carpio haematopterus) in susceptibility to Thelohanellus nikolskii (Myxosporea) infection

Acta Veterinaria Hungarica ◽

10.1556/avet.50.2002.1.7 ◽

2002 ◽

Vol 50 (1) ◽

pp. 51-57 ◽

Cited By ~ 13

Author(s):

K. Molnár

Keyword(s):

Common Carp ◽

Cyprinus Carpio ◽

Early Stage ◽

Far East ◽

Fish Farms ◽

Cyprinus Carpio Carpio ◽

Carp Cyprinus Carpio ◽

The Common ◽

Cyprinus Carpio Haematopterus ◽

Far Eastern

Thelohanellus nikolskii infection of the common carp (Cyprinus carpio L.) has been a common parasitosis in the Central European fish farms since the first detection of the parasite about 20 years ago. This parasite, introduced from the Far East, causes intensive infection on the fins of fingerlings of the carp subspecies cultured in Europe (European carp, Cyprinus carpio carpio). This infection of the common carp occurs in the Hungarian fish farms every year. Until the present study, this parasite had not been recorded from the fins of koi or coloured carp (Cyprinus carpio haematopterus), a carp of Far Eastern origin, which is cultured in Hungary as an ornamental fish. A recent survey conducted in common carp, koi and goldfish stocks demonstrated that T. nikolskii infection of low prevalence and intensity occurs also in koi populations, but its prevalence and intensity are markedly lower than in common carp kept in the same ponds. It is suggested that the observed differences are due to disparities in the susceptibility of the two carp subspecies to T. nikolskii, and that the koi is less susceptible to this infection. Other signs of susceptibility can also be observed in the European subspecies, since in 15% of the fish plasmodium development was arrested at an early stage. Thelohanellus nikolskii infection could not be demonstrated on goldfish (Carassius auratus).

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Military Service and Adventures in the Far East

10.1017/cbo9781139178747 ◽

2009 ◽

Author(s):

Daniel Henry Mackinnon

Keyword(s):

Military Service ◽

Far East ◽

The Far East

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Is there a regional culture in Russia? Opportunities of using a sociocultural approach in economics

Voprosy Ekonomiki ◽

10.32609/0042-8736-2020-7-108-126 ◽

2020 ◽

pp. 108-126 ◽

Cited By ~ 1

Author(s):

V. A. Bryzgalin ◽

Е. N. Nikishina

Keyword(s):

Far East ◽

Cross Cultural ◽

Regional Culture ◽

Russian Regions ◽

Geographical Patterns ◽

Cross Cultural Differences ◽

The Far East ◽

Sociocultural Approach ◽

Critical Issues ◽

Russian Universities

The paper investigates cross-cultural differences across Russian regions using the methodology of G. Hofstede. First, it discusses the most common approaches in measuring culture and the application of the Hofstede methodology in subnational studies. It identifies the critical issues in measuring culture at the regional level and suggests several strategies to address them. Secondly, the paper introduces subregional data on individualism and uncertainty avoidance using a survey of students across 27 Russian universities. The data allow to establish geographical patterns of individualism in Russia. It is demonstrated that collectivism is most prevalent in the Volga region, while individualism characteristic becomes stronger towards the Far East. The findings are robust to the inclusion of various controls and different specifications of the regression model. Finally, the paper provides a discussion about the potential of applying the sociocultural approach in economics.

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