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Archives of Polish Fisheries

The Journal of Stanislaw Sakowicz Inland Fisheries Institute

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2083-6139
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Volume 19, Issue 4 (Dec 2011)

Issues

Illegal fishing in the Tisza River drainage within Ukraine: a threat for local fish stocks?

Alexander Didenko
  • Institute of Fisheries, National Academy of Agrarian Sciences of Ukraine, Kiev, Ukraine
/ Igor Velykopolsky
  • Institute of Fisheries, National Academy of Agrarian Sciences of Ukraine, Kiev, Ukraine
/ Igor Buzevich
  • Institute of Fisheries, National Academy of Agrarian Sciences of Ukraine, Kiev, Ukraine
Published Online: 2012-01-27 | DOI: https://doi.org/10.2478/v10086-011-0031-6

Illegal fishing in the Tisza River drainage within Ukraine: a threat for local fish stocks?

Illegal fishing in watercourses of the Tisza River drainage in Ukraine (Transcarpathian region) was investigated focusing on the use of illegal gears and techniques. It was found that this activity is traditional and widespread in the region and is primarily practiced by low-income residents of rural communities. Fish are harvested mainly for personal consumption, which contributes to the diversification of diets and increase of protein intake for local people. The investigated illegal gears and techniques included gill nets, lift nets, screen nets, electrofishing devices, spears, and concussion. In total, 31 species were observed in poachers' catches, among which the most abundant were nase, Chondrosotma nasus (L.), Carpathian barbel, Barbus carpathicus Kotlik, Tsigenopoulos, Rab et Berrebi, and chub, Squalius cephalus (L.). Electrofishing devices were the most effective illegal fishing gears as they caught the largest total number and weight of fish. However, the highest mean weight of fish was caught in gill nets. Effects of poaching on local fish populations are currently probably lower than or comparable with that of recreational fishing.

Nielegalne połowy ryb w dorzeczu Cisy: zagrożenie dla lokalnych populacji ryb?

W pracy scharakteryzowano nielegalne połowy ryb w ukraińskiej części dorzecza Cisy (Zakarpacie) w latach 2008-2009. Na podstawie rejestrów nielegalnych połowów ryb w 16 rzekach zebranych przez służby zajmujące się ochroną ichtiofauny omówiono metody i narzędzia wykorzystywane przez kłusowników. Nielegalne połowy ryb były i są tradycyjnym i szeroko rozpowszechnionym zajęciem, szczególnie ubogiej części społeczeństwa zamieszkującej tereny wiejskie. Ryby poławiane były przede wszystkim na własny użytek. Odnotowano stosowanie sześciu grup technik i narzędzi do połowu ryb. Nielegalne odłowy ryb przeprowadzane były za pomocą sieci, pułapek, przestaw, ościeni, elektropołowów oraz przez ogłuszanie ryb. W odłowach kłusowniczych stwierdzono występowanie 31 gatunków ryb wśród których najliczniejsze były świnka Chondrosotma nasus (L.), brzanka karpacka Barbus carpathicus Kotlik, Tsigenopoulos, Rab et Berrebi, i kleń Squalius cephalus (L.). Największą ilość gatunków i biomasę złowionych ryb zarejestrowano w połowach narzędziami elektrycznymi, co sugeruje, że jest to najefektywniejszy sposób połowu ryb na analizowanym obszarze. Nielegalne połowy ryb mają obecnie prawdopodobnie mniejszy wpływ na populacje poszczególnych gatunków niż połowy wędkarskie.

Keywords: poaching; mountain rivers; Tisza River; Carpathians; endangered species; fishing gears

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About the article


Published Online: 2012-01-27

Published in Print: 2011-12-01



Citation Information: Archives of Polish Fisheries, ISSN (Online) 2083-6139, ISSN (Print) 1230-6428, DOI: https://doi.org/10.2478/v10086-011-0031-6. Export Citation

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