Abstract
Commercially exploited tench populations in 755 lakes in the Northeastern part of Poland were observed on the basis of the fishing data from 1951 to 1994. The observations were analyzed in five size categories of water reservoirs, whose total area reached over 123,900 ha. The analyses were performed according to the parameter of a commercial fish catch per area unit, taking into consideration the number of months per year when the lakes were exploited. Statistically significant differences were determined in the mean value of the tench catch parameter between the different size categories of lakes. Similar time-related differences were observed. In the lakes >100 ha the relative tench catch gradually declined in the successive time intervals. Tench was the rarest in catches from lakes <50 ha. The complete disappearance of tench from commercial catches occurred first as early as the late 1960s in lakes <200 ha. The largest quantities of tench stocking material were introduced to the lakes from 1951 to 1972. The amount of stocking material per 1 ha of stocked lakes decreased for larger lakes. The average frequency of tench stocking in the analyzed lakes was higher in larger lake size categories. On the other hand, in each lake size group the frequency of stocking was found to have declined along with the average volume of the stocking material in the subsequent 11-year-long periods.
Similar content being viewed by others
References
Bninska M., (1984). Outdoor recreation – a new factor disturbing lake ecosystems as exemplified by Lake Gim, Mazurian Lake District. Verhandlungen der Internationalen Vereinigung fuer Theoretische und Angewandte Limnologie 22: 978–981
Bninska M. (1985). The possibilities of improving catchable fish stocks in lakes undergoing eutrophication. Journal of Fish Biology 27 (Supplement A): 1–9
Brylinska M. (2000). Freshwater fish in Poland. Wydawnictwo Naukowe PWN, Warszawa
Budych J. (1967). Tench stocking success in RI PGRyb Poznan. Gospodarka Rybna 2:7–8
Choiński A. (1991). Catalogue of Polish lakes. Part II – Masurian Lakeland. Wydawnictwo Naukowe UAM, Poznan
Deja W. (2001). Suitability of the riparian zones of Polish lakes for recreation. Bogucki Wydawnictwo Naukowe, Poznan
Grabowska K., Wolos A. (1989). Commercial and angling catches of tench from lakes of the state fishing farms and the Polish Angling Association. Gospodarka Rybna 6:8–11
Hartmann J. (1977). Fischereiliche Veranderungen in kulturbedingt eutrophierenden Seen. Schweizerische Zeitschrift fuer Hydrologie 39: 243–254
Janczak J. (eds) (1997). Atlas of the Polish lakes. Volume II. Bogucki Wydawnictwo Naukowe, Poznan
Janczak J. (eds) (1999). Atlas of the Polish lakes. Volume III. Bogucki Wydawnictwo Naukowe, Poznan
Kostrowicki J. (1961). The geographical environment of Poland. PWN, Warszawa
Leopold M. (1969). An attempt to evaluate the economic state of exploited Polish lakes. Roczniki Nauk Rolniczych H-91: 23–40
Leopold M. and Bninska M. 1985. Improved effectiveness of lake stocking with montee. Opracowania Broszurowe IRS 141. pp. 8 (in Polish).
Leopold M., Bninska M., Nowak W. (1986). Commercial fish catches as an index of lake eutrophication. Archiv fuer Hydrobiologie 106: 513–524
Nagiec M. (1978). Dynamic of intensive exploited pikeperch (Stizostedion lucioperca) population in Lake Jeziorak. Zeszyty Naukowe ART Olsztyn, Ochrona Wod i Rybactwo Srodladowe 8: 119–176
Nowak W. 1978. Effect of lake fertility and specificity on ell management results. Opracowania Broszurowe IRS 112, 12 (in Polish).
Pyka J. (1993). Tench in the lake economy of Brodnickie Lake District. Komunikaty Rybackie 3: 6–8
Pyka J., Robak S. (2000). Tench in the lake economy of the former State Fishing Farm Grzmiêca (Brodnickie Lake District) and its present user – the Torun Branch of the Polish Angling Association. Importance of rearing management. Komunikaty Rybackie 6: 8–9
Pyka J., Krzywosz T., Zakes Z. (1989). Tench in the economy of the Great Masurian Lakes. Gospodarka Rybna 1: 12–14
Skrzypczak A. and Mamcarz A. 2003. Analysis of fishery exploitation parameters of lakes and assessment of their suitability for observation of trends in fish catches. Electronic Journal of Polish Agricultural Universities, Series Fisheries, Vol. 6, Issue 2, (http://www.ejpau.media.pl/series/volume6/issue2/fisheries/art-3.html)
Solowiej D. (1992). Principles of the methodology of human environment assessment. Wydawnictwo Naukowe UAM, Poznan
StatSoft 1997a. STATISTICA for Windows. Volume I. General Conventions and Statistics I. StatSoft Polska, Krakow, pp. 878 (in Polish).
StatSoft 1997b. STATISTICA for Windows. Volume II. Graphics. StatSoft Polska, Krakow, pp. 554 (in Polish).
Szczerbowski J.A. (eds) (1995). Inland Fisheries in Poland. IRS, Olsztyn, pp. 544
Walus T. (1958). Tench in lake economy. Gospodarka Rybna 7: 4–6
Zakes Z., Pyka J. (1990). Tench management in the polluted Niegocin lakes. Gospodarka Rybna 4/5/6:3–5
Zawisza J., Antosiak B. (1961). The rate of growth of tench (Tinca tinca L.) in lakes of Wegorzewo District. Roczniki Nauk Rolniczych 77-B-2: 493–525
Zwolinski A. (1972). Lakes as a principal resource for tourism in lake districts. Zeszyty Naukowe Instytutu Turystyki 7: 132–179
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
SKRZYPCZAK, A., MAMCARZ, A. Changes in commercially exploited populations of tench, Tinca tinca (L.) in lakes of Northeastern Poland. Aquacult Int 14, 179–193 (2006). https://doi.org/10.1007/s10499-005-9024-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10499-005-9024-z