[Białokoz W., Chybowski Ł. 1997 - Ichthyofauna of the Czarna Hańcza river-lake system - In: Integrated monitoring of the natural environment, Wigry Base Station (Ed.) L. Krzysztofiak, PIOŚ, Biblioteka Monitoringu Środowiska, Warszawa: 123-130 (in Polish).]Search in Google Scholar
[Białokoz W., Chybowski Ł. 1999 - Composition of the river ichthyofauna in Wigry National Park - In: Functioning and conservation of aquatic ecosystems in protected areas (Eds) Zdanowski B., Kamiński M., Martyniak A. Wyd. IRS Olsztyn: 527-534 (in Polish).]Search in Google Scholar
[Błachuta J., Witkowski A. 1997 - Issues in recreational fisheries management on rivers - Conference proceedings: Recreational fisheries and the protection of waters and fish resources. Łódź, 26-27 V 1997, Supplemental materials to the Scientific Annual of PZW, Wyd. PZW, Warszawa: 11-28 (in Polish).]Search in Google Scholar
[Bnińska M., Leopold M. 1987 - General analysis of recreational fisheries pressure on various types of waters - Rocz. Nauk Rol. 101-H-2: 7-26 (in Polish).]Search in Google Scholar
[Brylińska M. 2000 - Freshwater fish of Poland - Wyd. PWN Warszawa: 524 p. (in Polish).]Search in Google Scholar
[Dębowski P., Radtke G., Cegiel K. 2004 - The ichthyofauna of the Pasłęka River drainage basin - Rocz. Nauk. PZW 17: 5-34 (in Polish).]Search in Google Scholar
[Holčik J., Banarescu P., Evans D. 1989 - General introduction to fishes - In: The freshwater fishes of Europe. Aula Verlag Wiesbaden, Vol. 1, Part 2: 58-62.]Search in Google Scholar
[Kondracki J. 1998 - Polish regional geography - Wyd. PWN Warszawa, 470 p. (in Polish).]Search in Google Scholar
[Mironiuk W., Babietyńska E. 1979 - Changes in the fauna of the Czarna Hańcza River resulting from pollution and threats to Lake Wigry - In: Lake Wigry, the cradle of Polish hydrology (Ed.) B. Czeczuga. Ośr. Bad. Nauk. w Białymstoku, Wyd. PWN, Warszawa: 115-133 (in Polish).]Search in Google Scholar
[Penczak T., Kruk A., Koszaliński H. 1998 - Conservation status of rheophilic fish based on examples from chosen rivers - In: Cyrinid rheophilic fish (Eds) H. Jakucewicz and R. Wojda. Wyd. PZW, Warszawa: 7-15 (in Polish).]Search in Google Scholar
[Radtke G., Dębowski P. 1996 - Ichthyofauna composition of selected small streams in northen Poland - Rocz. Nauk. PZW 9: 123-132 (in Polish).]Search in Google Scholar
[Rembiszewski M., Rolik H. 1975 - Catalogue of Polish fauna. Part 38. Jawless fish and fish. Cyclostomata et Pisces - Wyd. PWN Warszawa, 252 p. (in Polish).]Search in Google Scholar
[St. 1915 - Die Äsche in Ostpreussen - Fisch. Zeit. 18: 537.]Search in Google Scholar
[Szczerbowski J. A. 1972 - Fishes in the Łyna River system - Pol. Arch. Hydrobiol. 19: 421-435.]Search in Google Scholar
[Szczerbowski J.A., Grudniewski Cz., Draganik B. 1968 - Effectiveness of catches using electrofishing in Kośno Stream - Zesz. Nauk. WSR 24: 509-520 (in Polish).]Search in Google Scholar
[Terlecki J., Białokoz W., Chybowski Ł., Kozłowski J., Martyniak A. 2001 - Current state of knowledge of the ichthyofauna of rivers in the Warmia and Mazury and Suwałki regions - Rocz. Nauk. PZW 14: 129-136 (in Polish).]Search in Google Scholar
[Terlecki J., Kozłowski J., Dostatni D., Hliwa P., Jozsa V., Martyniak A., Przybylski M., Wziątek B. 2004 - Ichthyofauna of he Łyna, Gubra, Dajna, and Sajna rivers - Rocz. Nauk. PZW 17: 35-54 (in Polish).]Search in Google Scholar
[Witkowski A., Kowalewski M., Kokurewicz B. 1984 - Grayling - Wyd. PWRiL, Warszawa, 214 p. (in Polish).]Search in Google Scholar
